zplab / zbar-py Goto Github PK

Hi,
There have reports regarding building zbar-py on windows. So, I tried compiling/building the package myself using Python 3.5/win10/32bit. I found that there are few issues. Some are related to the unportable code. unistd.h and getopt is not available on windows VC/VC++ 14 build tools for python 3.

I am working to get portable versions of unistd.h and getopt.
From
https://stackoverflow.com/questions/341817/is-there-a-replacement-for-unistd-h-for-windows-visual-c
https://gist.github.com/ashelly/7776712

Thanks

At least it is on my system.. -sigh-
High hopes for this package!

Running 3.6

Apologies ahead if I'm doing something wrong here....

c:\Python\Anaconda3>pip install zbar-py
Collecting zbar-py
Downloading zbar-py-1.0.4.tar.gz (543kB)
100% |████████████████████████████████| 552kB 895kB/s
Requirement already satisfied: numpy in c:\python\anaconda3\lib\site-packages (from zbar-py)
Building wheels for collected packages: zbar-py
Running setup.py bdist_wheel for zbar-py ... error
Complete output from command C:\Python\Anaconda3\python.exe -u -c "import setuptools, tokenize;file='C:\Users\mike\AppData\Local\Temp\pip-build-cq0eiu45\zbar-py\setup.py';f=getattr(tokenize, 'open', open)(file);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, file, 'exec'))" bdist_wheel -d C:\Users\mike\AppData\Local\Temp\tmplxdps_uqpip-wheel- --python-tag cp36:
running bdist_wheel
running build
running build_py
creating build
creating build\lib.win-amd64-3.6
creating build\lib.win-amd64-3.6\zbar
copying zbar\misc.py -> build\lib.win-amd64-3.6\zbar
copying zbar\zbar.py -> build\lib.win-amd64-3.6\zbar
copying zbar_init_.py -> build\lib.win-amd64-3.6\zbar
running build_ext
building 'zbar._zbar' extension
creating build\temp.win-amd64-3.6
creating build\temp.win-amd64-3.6\Release
creating build\temp.win-amd64-3.6\Release\zbar
creating build\temp.win-amd64-3.6\Release\Source
creating build\temp.win-amd64-3.6\Release\Source\zbar
creating build\temp.win-amd64-3.6\Release\Source\zbar\decoder
creating build\temp.win-amd64-3.6\Release\Source\zbar\qrcode
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Python\Anaconda3\include -IC:\Python\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\Include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\ATLMFC\Include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" /Tczbar/_zbar.c /Fobuild\temp.win-amd64-3.6\Release\zbar/_zbar.obj
_zbar.c
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Python\Anaconda3\include -IC:\Python\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\Include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\ATLMFC\Include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" /TcSource/zbar/decoder.c /Fobuild\temp.win-amd64-3.6\Release\Source/zbar/decoder.obj
decoder.c
Source/zbar/decoder.c(88): warning C4311: 'type cast': pointer truncation from 'unsigned int *' to 'long'
Source/zbar/decoder.c(88): warning C4311: 'type cast': pointer truncation from 'zbar_decoder_t *' to 'long'
Source/zbar/decoder.c(154): warning C4028: formal parameter 2 different from declaration
Source/zbar/decoder.c(387): warning C4018: '>': signed/unsigned mismatch
Source/zbar/decoder.c(397): warning C4018: '<': signed/unsigned mismatch
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Python\Anaconda3\include -IC:\Python\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\Include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\ATLMFC\Include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" /TcSource/zbar/decoder/code128.c /Fobuild\temp.win-amd64-3.6\Release\Source/zbar/decoder/code128.obj
code128.c
Source/zbar/decoder/code128.c(222): warning C4018: '>': signed/unsigned mismatch
Source/zbar/decoder/code128.c(326): warning C4018: '<': signed/unsigned mismatch
Source/zbar/decoder/code128.c(349): warning C4018: '<': signed/unsigned mismatch
Source/zbar/decoder/code128.c(486): warning C4018: '>': signed/unsigned mismatch
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Python\Anaconda3\include -IC:\Python\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\Include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\ATLMFC\Include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" /TcSource/zbar/decoder/code39.c /Fobuild\temp.win-amd64-3.6\Release\Source/zbar/decoder/code39.obj
code39.c
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Python\Anaconda3\include -IC:\Python\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\Include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\ATLMFC\Include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" /TcSource/zbar/decoder/ean.c /Fobuild\temp.win-amd64-3.6\Release\Source/zbar/decoder/ean.obj
ean.c
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Python\Anaconda3\include -IC:\Python\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\Include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\ATLMFC\Include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" /TcSource/zbar/decoder/i25.c /Fobuild\temp.win-amd64-3.6\Release\Source/zbar/decoder/i25.obj
i25.c
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Python\Anaconda3\include -IC:\Python\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\Include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\ATLMFC\Include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" /TcSource/zbar/decoder/pdf417.c /Fobuild\temp.win-amd64-3.6\Release\Source/zbar/decoder/pdf417.obj
pdf417.c
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Python\Anaconda3\include -IC:\Python\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\Include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\ATLMFC\Include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" /TcSource/zbar/decoder/qr_finder.c /Fobuild\temp.win-amd64-3.6\Release\Source/zbar/decoder/qr_finder.obj
qr_finder.c
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Python\Anaconda3\include -IC:\Python\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\Include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\ATLMFC\Include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" /TcSource/zbar/error.c /Fobuild\temp.win-amd64-3.6\Release\Source/zbar/error.obj
error.c
c:\users\mike\appdata\local\temp\pip-build-cq0eiu45\zbar-py\source\zbar\error.h(174): warning C4996: 'strdup': The POSIX name for this item is deprecated. Instead, use the ISO C and C++ conformant name: _strdup. See online help for details.
C:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt\string.h(538): note: see declaration of 'strdup'
Source/zbar/error.c(39): warning C4114: same type qualifier used more than once
Source/zbar/error.c(127): warning C4267: 'initializing': conversion from 'size_t' to 'int', possible loss of data
Source/zbar/error.c(129): warning C4996: 'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
C:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt\stdio.h(1772): note: see declaration of 'sprintf'
Source/zbar/error.c(134): warning C4267: 'initializing': conversion from 'size_t' to 'int', possible loss of data
Source/zbar/error.c(137): warning C4996: 'strdup': The POSIX name for this item is deprecated. Instead, use the ISO C and C++ conformant name: _strdup. See online help for details.
C:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt\string.h(538): note: see declaration of 'strdup'
Source/zbar/error.c(139): warning C4996: 'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
C:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt\stdio.h(1772): note: see declaration of 'sprintf'
Source/zbar/error.c(143): warning C4996: 'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
C:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt\stdio.h(1772): note: see declaration of 'sprintf'
Source/zbar/error.c(147): warning C4996: 'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
C:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt\stdio.h(1772): note: see declaration of 'sprintf'
Source/zbar/error.c(155): warning C4996: 'strerror': This function or variable may be unsafe. Consider using strerror_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
C:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt\string.h(181): note: see declaration of 'strerror'
Source/zbar/error.c(157): warning C4996: 'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
C:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt\stdio.h(1772): note: see declaration of 'sprintf'
Source/zbar/error.c(169): warning C4996: 'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
C:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt\stdio.h(1772): note: see declaration of 'sprintf'
Source/zbar/error.c(176): warning C4996: 'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
C:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt\stdio.h(1772): note: see declaration of 'sprintf'
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Python\Anaconda3\include -IC:\Python\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\Include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\ATLMFC\Include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" /TcSource/zbar/img_scanner.c /Fobuild\temp.win-amd64-3.6\Release\Source/zbar/img_scanner.obj
img_scanner.c
Source/zbar/img_scanner.c(24): fatal error C1083: Cannot open include file: 'unistd.h': No such file or directory
error: command 'C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\cl.exe' failed with exit status 2

Failed building wheel for zbar-py
Running setup.py clean for zbar-py
Failed to build zbar-py
Installing collected packages: zbar-py
Running setup.py install for zbar-py ... error
Complete output from command C:\Python\Anaconda3\python.exe -u -c "import setuptools, tokenize;file='C:\Users\mike\AppData\Local\Temp\pip-build-cq0eiu45\zbar-py\setup.py';f=getattr(tokenize, 'open', open)(file);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, file, 'exec'))" install --record C:\Users\mike\AppData\Local\Temp\pip-5awfkinr-record\install-record.txt --single-version-externally-managed --compile:
running install
running build
running build_py
creating build
creating build\lib.win-amd64-3.6
creating build\lib.win-amd64-3.6\zbar
copying zbar\misc.py -> build\lib.win-amd64-3.6\zbar
copying zbar\zbar.py -> build\lib.win-amd64-3.6\zbar
copying zbar_init_.py -> build\lib.win-amd64-3.6\zbar
running build_ext
building 'zbar._zbar' extension
creating build\temp.win-amd64-3.6
creating build\temp.win-amd64-3.6\Release
creating build\temp.win-amd64-3.6\Release\zbar
creating build\temp.win-amd64-3.6\Release\Source
creating build\temp.win-amd64-3.6\Release\Source\zbar
creating build\temp.win-amd64-3.6\Release\Source\zbar\decoder
creating build\temp.win-amd64-3.6\Release\Source\zbar\qrcode
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Python\Anaconda3\include -IC:\Python\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\Include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\ATLMFC\Include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" /Tczbar/_zbar.c /Fobuild\temp.win-amd64-3.6\Release\zbar/_zbar.obj
_zbar.c
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Python\Anaconda3\include -IC:\Python\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\Include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\ATLMFC\Include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" /TcSource/zbar/decoder.c /Fobuild\temp.win-amd64-3.6\Release\Source/zbar/decoder.obj
decoder.c
Source/zbar/decoder.c(88): warning C4311: 'type cast': pointer truncation from 'unsigned int *' to 'long'
Source/zbar/decoder.c(88): warning C4311: 'type cast': pointer truncation from 'zbar_decoder_t *' to 'long'
Source/zbar/decoder.c(154): warning C4028: formal parameter 2 different from declaration
Source/zbar/decoder.c(387): warning C4018: '>': signed/unsigned mismatch
Source/zbar/decoder.c(397): warning C4018: '<': signed/unsigned mismatch
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Python\Anaconda3\include -IC:\Python\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\Include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\ATLMFC\Include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" /TcSource/zbar/decoder/code128.c /Fobuild\temp.win-amd64-3.6\Release\Source/zbar/decoder/code128.obj
code128.c
Source/zbar/decoder/code128.c(222): warning C4018: '>': signed/unsigned mismatch
Source/zbar/decoder/code128.c(326): warning C4018: '<': signed/unsigned mismatch
Source/zbar/decoder/code128.c(349): warning C4018: '<': signed/unsigned mismatch
Source/zbar/decoder/code128.c(486): warning C4018: '>': signed/unsigned mismatch
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Python\Anaconda3\include -IC:\Python\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\Include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\ATLMFC\Include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" /TcSource/zbar/decoder/code39.c /Fobuild\temp.win-amd64-3.6\Release\Source/zbar/decoder/code39.obj
code39.c
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Python\Anaconda3\include -IC:\Python\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\Include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\ATLMFC\Include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" /TcSource/zbar/decoder/ean.c /Fobuild\temp.win-amd64-3.6\Release\Source/zbar/decoder/ean.obj
ean.c
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Python\Anaconda3\include -IC:\Python\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\Include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\ATLMFC\Include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" /TcSource/zbar/decoder/i25.c /Fobuild\temp.win-amd64-3.6\Release\Source/zbar/decoder/i25.obj
i25.c
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Python\Anaconda3\include -IC:\Python\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\Include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\ATLMFC\Include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" /TcSource/zbar/decoder/pdf417.c /Fobuild\temp.win-amd64-3.6\Release\Source/zbar/decoder/pdf417.obj
pdf417.c
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Python\Anaconda3\include -IC:\Python\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\Include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\ATLMFC\Include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" /TcSource/zbar/decoder/qr_finder.c /Fobuild\temp.win-amd64-3.6\Release\Source/zbar/decoder/qr_finder.obj
qr_finder.c
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Python\Anaconda3\include -IC:\Python\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\Include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\ATLMFC\Include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" /TcSource/zbar/error.c /Fobuild\temp.win-amd64-3.6\Release\Source/zbar/error.obj
error.c
c:\users\mike\appdata\local\temp\pip-build-cq0eiu45\zbar-py\source\zbar\error.h(174): warning C4996: 'strdup': The POSIX name for this item is deprecated. Instead, use the ISO C and C++ conformant name: _strdup. See online help for details.
C:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt\string.h(538): note: see declaration of 'strdup'
Source/zbar/error.c(39): warning C4114: same type qualifier used more than once
Source/zbar/error.c(127): warning C4267: 'initializing': conversion from 'size_t' to 'int', possible loss of data
Source/zbar/error.c(129): warning C4996: 'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
C:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt\stdio.h(1772): note: see declaration of 'sprintf'
Source/zbar/error.c(134): warning C4267: 'initializing': conversion from 'size_t' to 'int', possible loss of data
Source/zbar/error.c(137): warning C4996: 'strdup': The POSIX name for this item is deprecated. Instead, use the ISO C and C++ conformant name: _strdup. See online help for details.
C:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt\string.h(538): note: see declaration of 'strdup'
Source/zbar/error.c(139): warning C4996: 'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
C:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt\stdio.h(1772): note: see declaration of 'sprintf'
Source/zbar/error.c(143): warning C4996: 'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
C:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt\stdio.h(1772): note: see declaration of 'sprintf'
Source/zbar/error.c(147): warning C4996: 'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
C:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt\stdio.h(1772): note: see declaration of 'sprintf'
Source/zbar/error.c(155): warning C4996: 'strerror': This function or variable may be unsafe. Consider using strerror_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
C:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt\string.h(181): note: see declaration of 'strerror'
Source/zbar/error.c(157): warning C4996: 'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
C:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt\stdio.h(1772): note: see declaration of 'sprintf'
Source/zbar/error.c(169): warning C4996: 'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
C:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt\stdio.h(1772): note: see declaration of 'sprintf'
Source/zbar/error.c(176): warning C4996: 'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
C:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt\stdio.h(1772): note: see declaration of 'sprintf'
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Python\Anaconda3\include -IC:\Python\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\Include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\ATLMFC\Include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.16299.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" /TcSource/zbar/img_scanner.c /Fobuild\temp.win-amd64-3.6\Release\Source/zbar/img_scanner.obj
img_scanner.c
Source/zbar/img_scanner.c(24): fatal error C1083: Cannot open include file: 'unistd.h': No such file or directory
error: command 'C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\cl.exe' failed with exit status 2

----------------------------------------

Command "C:\Python\Anaconda3\python.exe -u -c "import setuptools, tokenize;file='C:\Users\mike\AppData\Local\Temp\pip-build-cq0eiu45\zbar-py\setup.py';f=getattr(tokenize, 'open', open)(file);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, file, 'exec'))" install --record C:\Users\mike\AppData\Local\Temp\pip-5awfkinr-record\install-record.txt --single-version-externally-managed --compile" failed with error code 1 in C:\Users\mike\AppData\Local\Temp\pip-build-cq0eiu45\zbar-py\

It would be great if someone could contribute a Python wheel containing full Windows binaries for Python 2.7 64.

Thank you in advance

I installed iconv and then zbar-py (pip install zbar-py).
And then I write import zbar into y code.
However, python cannot recognize the library.

The error is simple:
Traceback (most recent call last):
File "C:\Python27\GDrive\LAB\QRCODE_Read.py", line 16, in
import zbar
ImportError: No module named zbar

What can be the source of the error?

EDIT: Found that I didn't assign a variable to scanner.scan(gray), assigned variable and error still there.

On Raspberry Pi3, Python 3.4, OpenCV3 I get the below error. Attached is code, error, and additional information. CODE:

import cv2
import zbar
import constants

camera = cv2.VideoCapture(0)

#initialize zbar reader
scanner = zbar.Scanner()

def capture(camera):
	while True:
		#end program if q is pressed
		if cv2.waitKey(1) & 0xFF == ord('q'):
			break

		#begin grabbing frames from the camera
		frame = camera.read()
		
		#convert frames to grayscale as zbar-py only accepts grayscale opencv
		gray = (frame, cv2.COLOR_BGR2GRAY)

		#scan frame for qrcode/barcode
		zbar_image = scanner.scan(gray)
		
		#print decoded data in frame
		for decoded in zbar_image:
			print(decoded.data)
		
capture(camera)

Error:

Traceback (most recent call last):
  File "Main.py", line 38, in <module>
    capture(camera)
  File "Main.py", line 32, in capture
    scanner.scan(gray)
  File "/home/pi/.virtualenvs/cv/lib/python3.4/site-packages/zbar/zbar.py", line 191, in scan
    height, width = image.shape
ValueError: need more than 1 value to unpack

When printing out the value of "gray" sometimes randomly I get

((False, None), 6)

And just as randomly I get

((True, array([[[159, 156, 166],
        [159, 156, 166],
        [161, 158, 168],
        ..., 
        [ 75,  86,  77],
        [ 82,  85,  77],
        [ 79,  82,  74]],

       [[158, 155, 164],
        [160, 157, 166],
        [156, 159, 167],
        ..., 
        [ 70,  85,  71],
        [ 79,  82,  73],
        [ 77,  80,  71]],

       [[156, 156, 166],
        [157, 157, 167],
        [156, 158, 170],
        ..., 
        [ 70,  84,  73],
        [ 74,  79,  74],
        [ 73,  78,  73]],

       ..., 
       [[231, 239, 233],
        [230, 238, 232],
        [229, 237, 231],
        ..., 
        [103, 120, 106],
        [107, 122, 108],
        [112, 127, 113]],

       [[231, 239, 233],
        [230, 238, 232],
        [229, 237, 231],
        ..., 
        [103, 122, 108],
        [106, 125, 111],
        [109, 128, 114]],

       [[232, 237, 233],
        [230, 235, 231],
        [233, 234, 231],
        ..., 
        [109, 124, 110],
        [112, 127, 113],
        [116, 131, 117]]], dtype=uint8)), 6)

But it always no matter what the result is, it always gives me the ValueError exception.

On OS X, with python 2.7 I am getting below error while running scanner.scan(...) function

>>> import cv2
>>> image = cv2.imread("/Users/mquadri/Desktop/pepsi_barcode.jpeg")
>>> import zbar

>>> scanner = zbar.Scanner()

>> results = scanner.scan(image)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/mquadri/workspace/yolovenv/lib/python2.7/site-packages/zbar/zbar.py", line 191, in scan
    height, width = image.shape
ValueError: too many values to unpack
>>> image.shape
(183, 275, 3)

Any idea on how to fix it?

PS: On using the imread() function from the example code, it is working fine

The error shows like this :

python3: /build/zbar-m079fX/zbar-0.10+doc/zbar/qrcode/qrdectxt.c:368: qr_code_data_list_extract_text: Assertion `next > syms->datalen' failed.
Aborted (core dumped)

when I'm doing experiment with a bunch of pictures, some case failed constantly:

The code goes like this:

from PIL import Image
from pyzbar.pyzbar import decode
image = Image.open(image_path)
image = image.convert('L')
qr_codes = decode(image)
print(len(qr_codes))

I've tried to install zbar-py on Windows 10, with several versions of Python (3.6, 3.7, and 3.9), but it fails each time. I have downloaded and installed the .exe's for iconv that the readme says are needed (as the link goes to exe's rather than dll's), but those did not appear to change anything and I still cannot install zbar-py. It's possible that I didn't take sufficient actions regarding the iconv files - if that's the case, then can the readme please be updated to say exactly what to do with them beyond just downloading them and running the .exe files (such as, if we're supposed to copy dll's from whatever the exe installs, it would be great if it said where to copy them from and then where to place them - because those iconv exe's and zips do not contain any DLL's).

Otherwise, when I try installing zbar-py via pip (executed in Visual Studio 2019's python 3.9 environment), or when I try to install directly from command line, this is the result:

Collecting zbar-py==1.0.4
Using cached zbar-py-1.0.4.tar.gz (543 kB)
Requirement already satisfied: numpy in c:\users\chris\source\repos\pythonapplication1\pythonapplication1\python3.9env\lib\site-packages (from zbar-py==1.0.4) (1.20.1)
Using legacy 'setup.py install' for zbar-py, since package 'wheel' is not installed.
Installing collected packages: zbar-py
Running setup.py install for zbar-py: started
Running setup.py install for zbar-py: finished with status 'error'
ERROR: Command errored out with exit status 1:
command: 'C:\Users\chris\source\repos\PythonApplication1\PythonApplication1\Python3.9Env\Scripts\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\Users\chris\AppData\Local\Temp\pip-install-stweh31z\zbar-py_e32456a6856a4af49d10fc0d5f6b4ec6\setup.py'"'"'; file='"'"'C:\Users\chris\AppData\Local\Temp\pip-install-stweh31z\zbar-py_e32456a6856a4af49d10fc0d5f6b4ec6\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' install --record 'C:\Users\chris\AppData\Local\Temp\pip-record-w1moyddt\install-record.txt' --single-version-externally-managed --compile --install-headers 'C:\Users\chris\source\repos\PythonApplication1\PythonApplication1\Python3.9Env\include\site\python3.9\zbar-py'
cwd: C:\Users\chris\AppData\Local\Temp\pip-install-stweh31z\zbar-py_e32456a6856a4af49d10fc0d5f6b4ec6
Complete output (60 lines):
running install
running build
running build_py
creating build
creating build\lib.win-amd64-3.9
creating build\lib.win-amd64-3.9\zbar
copying zbar\misc.py -> build\lib.win-amd64-3.9\zbar
copying zbar\zbar.py -> build\lib.win-amd64-3.9\zbar
copying zbar_init_.py -> build\lib.win-amd64-3.9\zbar
running build_ext
building 'zbar._zbar' extension
creating build\temp.win-amd64-3.9
creating build\temp.win-amd64-3.9\Release
creating build\temp.win-amd64-3.9\Release\Source
creating build\temp.win-amd64-3.9\Release\Source\zbar
creating build\temp.win-amd64-3.9\Release\Source\zbar\decoder
creating build\temp.win-amd64-3.9\Release\Source\zbar\qrcode
creating build\temp.win-amd64-3.9\Release\zbar
C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Users\chris\source\repos\PythonApplication1\PythonApplication1\Python3.9Env\include -IC:\Users\chris\AppData\Local\Programs\Python\Python39\include -IC:\Users\chris\AppData\Local\Programs\Python\Python39\include -IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\ATLMFC\include -IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\include -IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.8\include\um -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\shared -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\um -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\winrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\cppwinrt /TcSource/zbar/decoder.c /Fobuild\temp.win-amd64-3.9\Release\Source/zbar/decoder.obj
decoder.c
Source/zbar/decoder.c(88): warning C4311: 'type cast': pointer truncation from 'unsigned int *' to 'long'
Source/zbar/decoder.c(88): warning C4311: 'type cast': pointer truncation from 'zbar_decoder_t *' to 'long'
Source/zbar/decoder.c(387): warning C4018: '>': signed/unsigned mismatch
Source/zbar/decoder.c(397): warning C4018: '<': signed/unsigned mismatch
C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Users\chris\source\repos\PythonApplication1\PythonApplication1\Python3.9Env\include -IC:\Users\chris\AppData\Local\Programs\Python\Python39\include -IC:\Users\chris\AppData\Local\Programs\Python\Python39\include -IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\ATLMFC\include -IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\include -IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.8\include\um -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\shared -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\um -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\winrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\cppwinrt /TcSource/zbar/decoder/code128.c /Fobuild\temp.win-amd64-3.9\Release\Source/zbar/decoder/code128.obj
code128.c
Source/zbar/decoder/code128.c(222): warning C4018: '>': signed/unsigned mismatch
Source/zbar/decoder/code128.c(222): warning C4018: '>': signed/unsigned mismatch
Source/zbar/decoder/code128.c(326): warning C4018: '<': signed/unsigned mismatch
Source/zbar/decoder/code128.c(349): warning C4018: '<': signed/unsigned mismatch
Source/zbar/decoder/code128.c(483): warning C4018: '>': signed/unsigned mismatch
C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Users\chris\source\repos\PythonApplication1\PythonApplication1\Python3.9Env\include -IC:\Users\chris\AppData\Local\Programs\Python\Python39\include -IC:\Users\chris\AppData\Local\Programs\Python\Python39\include -IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\ATLMFC\include -IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\include -IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.8\include\um -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\shared -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\um -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\winrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\cppwinrt /TcSource/zbar/decoder/code39.c /Fobuild\temp.win-amd64-3.9\Release\Source/zbar/decoder/code39.obj
code39.c
C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Users\chris\source\repos\PythonApplication1\PythonApplication1\Python3.9Env\include -IC:\Users\chris\AppData\Local\Programs\Python\Python39\include -IC:\Users\chris\AppData\Local\Programs\Python\Python39\include -IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\ATLMFC\include -IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\include -IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.8\include\um -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\shared -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\um -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\winrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\cppwinrt /TcSource/zbar/decoder/ean.c /Fobuild\temp.win-amd64-3.9\Release\Source/zbar/decoder/ean.obj
ean.c
C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Users\chris\source\repos\PythonApplication1\PythonApplication1\Python3.9Env\include -IC:\Users\chris\AppData\Local\Programs\Python\Python39\include -IC:\Users\chris\AppData\Local\Programs\Python\Python39\include -IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\ATLMFC\include -IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\include -IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.8\include\um -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\shared -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\um -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\winrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\cppwinrt /TcSource/zbar/decoder/i25.c /Fobuild\temp.win-amd64-3.9\Release\Source/zbar/decoder/i25.obj
i25.c
C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Users\chris\source\repos\PythonApplication1\PythonApplication1\Python3.9Env\include -IC:\Users\chris\AppData\Local\Programs\Python\Python39\include -IC:\Users\chris\AppData\Local\Programs\Python\Python39\include -IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\ATLMFC\include -IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\include -IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.8\include\um -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\shared -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\um -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\winrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\cppwinrt /TcSource/zbar/decoder/pdf417.c /Fobuild\temp.win-amd64-3.9\Release\Source/zbar/decoder/pdf417.obj
pdf417.c
C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Users\chris\source\repos\PythonApplication1\PythonApplication1\Python3.9Env\include -IC:\Users\chris\AppData\Local\Programs\Python\Python39\include -IC:\Users\chris\AppData\Local\Programs\Python\Python39\include -IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\ATLMFC\include -IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\include -IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.8\include\um -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\shared -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\um -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\winrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\cppwinrt /TcSource/zbar/decoder/qr_finder.c /Fobuild\temp.win-amd64-3.9\Release\Source/zbar/decoder/qr_finder.obj
qr_finder.c
C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Users\chris\source\repos\PythonApplication1\PythonApplication1\Python3.9Env\include -IC:\Users\chris\AppData\Local\Programs\Python\Python39\include -IC:\Users\chris\AppData\Local\Programs\Python\Python39\include -IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\ATLMFC\include -IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\include -IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.8\include\um -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\shared -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\um -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\winrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\cppwinrt /TcSource/zbar/error.c /Fobuild\temp.win-amd64-3.9\Release\Source/zbar/error.obj
error.c
C:\Users\chris\AppData\Local\Temp\pip-install-stweh31z\zbar-py_e32456a6856a4af49d10fc0d5f6b4ec6\Source\zbar\error.h(174): warning C4996: 'strdup': The POSIX name for this item is deprecated. Instead, use the ISO C and C++ conformant name: _strdup. See online help for details.
Source/zbar/error.c(39): warning C4114: same type qualifier used more than once
Source/zbar/error.c(127): warning C4267: 'initializing': conversion from 'size_t' to 'int', possible loss of data
Source/zbar/error.c(129): warning C4996: 'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
Source/zbar/error.c(134): warning C4267: 'initializing': conversion from 'size_t' to 'int', possible loss of data
Source/zbar/error.c(137): warning C4996: 'strdup': The POSIX name for this item is deprecated. Instead, use the ISO C and C++ conformant name: _strdup. See online help for details.
Source/zbar/error.c(139): warning C4996: 'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
Source/zbar/error.c(143): warning C4996: 'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
Source/zbar/error.c(147): warning C4996: 'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
Source/zbar/error.c(155): warning C4996: 'strerror': This function or variable may be unsafe. Consider using strerror_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
Source/zbar/error.c(157): warning C4996: 'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
Source/zbar/error.c(169): warning C4996: 'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
Source/zbar/error.c(176): warning C4996: 'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -DENABLE_QRCODE -DENABLE_EAN -DENABLE_I25 -DENABLE_CODE39 -DENABLE_CODE128 -DENABLE_PDF417 -DHAVE_INTTYPES_H -DZBAR_VERSION_MAJOR=0 -DZBAR_VERSION_MINOR=10 -DNO_STATS -ISource -ISource/zbar -IC:\Users\chris\source\repos\PythonApplication1\PythonApplication1\Python3.9Env\include -IC:\Users\chris\AppData\Local\Programs\Python\Python39\include -IC:\Users\chris\AppData\Local\Programs\Python\Python39\include -IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\ATLMFC\include -IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\include -IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.8\include\um -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\shared -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\um -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\winrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\cppwinrt /TcSource/zbar/img_scanner.c /Fobuild\temp.win-amd64-3.9\Release\Source/zbar/img_scanner.obj
img_scanner.c
Source/zbar/img_scanner.c(24): fatal error C1083: Cannot open include file: 'unistd.h': No such file or directory
error: command 'C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.27.29110\bin\HostX86\x64\cl.exe' failed with exit code 2
----------------------------------------
ERROR: Command errored out with exit status 1: 'C:\Users\chris\source\repos\PythonApplication1\PythonApplication1\Python3.9Env\Scripts\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\Users\chris\AppData\Local\Temp\pip-install-stweh31z\zbar-py_e32456a6856a4af49d10fc0d5f6b4ec6\setup.py'"'"'; file='"'"'C:\Users\chris\AppData\Local\Temp\pip-install-stweh31z\zbar-py_e32456a6856a4af49d10fc0d5f6b4ec6\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' install --record 'C:\Users\chris\AppData\Local\Temp\pip-record-w1moyddt\install-record.txt' --single-version-externally-managed --compile --install-headers 'C:\Users\chris\source\repos\PythonApplication1\PythonApplication1\Python3.9Env\include\site\python3.9\zbar-py' Check the logs for full command output.
----- Successfully installed 'zbar-py==1.0.4' -----

Does installation work correctly on Linux? If so, I can try to switch to a Linux OS for my project, but it would be helpful to know if the installation is likely to be successful before I embark on that time commitment.

Trying to build after installing both "Microsoft Visual C++ Compiler for Python 2.7" and "iconv".

I installed inconv using the .exe, was I supposed to do it differently?

When I try to install zbar-py using pip I get this:

c:\python27\include\pyport.h(9) : fatal error C1083: Cannot open include file: 'inttypes.h': No such file or directory error: command 'C:\\Users\\Christian\\AppData\\Local\\Programs\\Common\\Microsoft\\Visual C++ for Python\\9.0\\VC\\Bin\\cl.exe' failed with exit status 2

I tried downloading inttypes.h from here: https://code.google.com/archive/p/msinttypes/downloads and tried placing it in the respective \include\ and \bin\ directories. Neither is working.

glibc apparently provides an iconv implementation. Looks like on Arch, there is no libiconv as such. There is only glibc, and iconv support is available with no linker options specified.

To point out that this is missing with respect to the original zbar.

AttributeError: module 'zbar' has no attribute 'Image'

Cannot export PyInit__zbar: symbol not defined

Seems like no support for PDF417, scanner.scan returning empty for PDF417 type. Can you please add PDF417 support? Thanks.