Patching pytracemalloc on Windows with Python2.7 about pytracemalloc HOT 13 CLOSED

vstinner commented on September 22, 2024

Patching pytracemalloc on Windows with Python2.7

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EstevanTH commented on September 22, 2024 16

Hi, I have been able to build Python 2.7.15 with tracemalloc on Windows x86-64. The build worked on x86-32 as well, but I have not tested it.

The Windows version of ctypes.cdll.LoadLibrary() does not accept None as an argument. Instead, you have to specify "python27.dll".

Besides I had to build _tracemalloc.pyd by hand but the issue is unlikely to be caused by the setup script. (It did not find vcvarsall.bat and kept messing up after my workarounds.)

BTW I do not appreciate how this issue has turned out. 😟 I'm not trying to be nasty, but I program in Python for customers, and if they do not pay for a migration then my boss cannot allow my team to spend time to switch from Python2 to Python3. And frameworks and libraries being so obscure, what else can I do when the gc does not show anything big? 😭

PS: I'm open for contact (if you ever need my builds).

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vstinner commented on September 22, 2024 10

BTW I do not appreciate how this issue has turned out. worried

I'm maintaining this project in my free time. Since I created it, I got exactly 0€ for it. See the "No Maintenance Intended" banner on the homepage: http://unmaintained.tech/ What did you expect?

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vstinner commented on September 22, 2024 3

The Windows version of ctypes.cdll.LoadLibrary() does not accept None as an argument. Instead, you have to specify "python27.dll".

If you propose a PR, I will likely merge it.

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vstinner commented on September 22, 2024

Hi,

File "setup.py", line 55, in main
pythonapi = ctypes.cdll.LoadLibrary(None)

This code is only needed to display a message, you can simply remove it from setup.py: remove these lines:

    pythonapi = ctypes.cdll.LoadLibrary(None)
    if not hasattr(pythonapi, 'PyMem_SetAllocator'):
        print("WARNING: PyMem_SetAllocator: missing, %s has not been patched" % sys.executable)
    else:
        print("PyMem_SetAllocator: present")

I never tested pytracemalloc on Windows, but tracemalloc works perfectly well in Python 3: it's a builtin module since Python 3.4!
https://docs.python.org/dev/library/tracemalloc.html

Why not using Python 3? ;-)

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sapnads commented on September 22, 2024

Thank you so much for your feedback on this. I did read the same elsewhere and tried it out, but I am running into some other issue: Traceback (most recent call last): File "setup.py", line 103, in <module> main() File "setup.py", line 62, in main library_dirs = pkg_config("glib-2.0", "--libs-only-L", 2) File "setup.py", line 44, in pkg_config universal_newlines=True) File "C:\Python27\lib\subprocess.py", line 710, in __init__ errread, errwrite) File "C:\Python27\lib\subprocess.py", line 958, in _execute_child startupinfo) WindowsError: [Error 2] The system cannot find the file specified Can you share steps for Glib-2 installation as well? I tried installing it but I don't think it is done correctly. We have a huge project that was built on python 2.7. I am evaluating the impact and time required to migrate to 3.4 for the very same reason that it is an inbuilt library that I could use :) However, it would take some before it gets completed and I need some debug capabilities on the existing project in the meantime Thanks,

…

On Fri, Oct 20, 2017 at 5:51 AM, Victor Stinner ***@***.***> wrote: Hi, File "setup.py", line 55, in main pythonapi = ctypes.cdll.LoadLibrary(None) This code is only needed to display a message, you can simply remove it from setup.py: remove these lines: pythonapi = ctypes.cdll.LoadLibrary(None) if not hasattr(pythonapi, 'PyMem_SetAllocator'): print("WARNING: PyMem_SetAllocator: missing, %s has not been patched" % sys.executable) else: print("PyMem_SetAllocator: present") I never tested pytracemalloc on Windows, but tracemalloc works perfectly well in Python 3: it's a builtin module since Python 3.4! https://docs.python.org/dev/library/tracemalloc.html Why not using Python 3? ;-) — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#11 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AdjldaPWvBfNFKiR6UI38Rh-Lt1knoZ2ks5suJdEgaJpZM4QAGGb> .

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vstinner commented on September 22, 2024

Which version are you testing? Glib is no more needed in the latest version and there is no pkg-config check in setup.py. Try maybe the version on GitHub?

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sapnads commented on September 22, 2024

Ok tried that. Now I am getting the following: c:\Python27\Lib\pytracemalloc-0.9.1>python setup.py install running install running build running build_py creating build creating build\lib.win-amd64-2.7 copying tracemalloc.py -> build\lib.win-amd64-2.7 running build_ext building '_tracemalloc' extension error: Unable to find vcvarsall.bat

…

On Fri, Oct 20, 2017 at 1:16 PM, Victor Stinner ***@***.***> wrote: Which version are you testing? Glib is no more needed in the latest version and there is no pkg-config check in setup.py. Try maybe the version on GitHub? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#11 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AdjlddF3uPWG5tENJAKXwW98urpRUubsks5suP-1gaJpZM4QAGGb> .

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vstinner commented on September 22, 2024

Do you have Visual Studio 2008 or 2010 installed? If yes, you have to run setup.py in a Visual Studio shell I think. Or do you have a Windows SDK installed? How did compile Python? See maybe: http://haypo-notes.readthedocs.io/python_packaging.html#compile-python-extensions-on-windows

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sapnads commented on September 22, 2024

i have never really compiled python as such. just downloaded python 2.7, installed and executed some scripts.

…

On Fri, Oct 20, 2017 at 1:43 PM, Victor Stinner ***@***.***> wrote: Do you have Visual Studio 2008 or 2010 installed? If yes, you have to run setup.py in a Visual Studio shell I think. Or do you have a Windows SDK installed? How did compile Python? See maybe: http://haypo-notes.readthedocs.io/python_packaging.html#compile-python- extensions-on-windows — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#11 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AdjldfGGHin_2ayQeQ5SGna4trMgUvSoks5suQYMgaJpZM4QAGGb> .

-- Sapna D'Souza Modem System Test Engineer Qualcomm

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vstinner commented on September 22, 2024

Oh.... On Python older than Python 3.4, pytracemalloc requires to patch and recompile Python! Compiling Python 2.7 on Windows is complex and requires Visual Studio 2008, Visual Studio 2010, Git, etc. See the doc: http://pytracemalloc.readthedocs.io/install.html My notes to build Python on Windows: http://haypo-notes.readthedocs.io/cpython_windows.html#cpython-windows

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vstinner commented on September 22, 2024

No news for one year. I close the issue, sorry.

BREAKING NEWS: Python 3 is out. Maybe you can give it a try?

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vstinner commented on September 22, 2024

It's not a good practice to comment closed issues. Please open a new issue. (But don't expect anything, No Maintenance Intended.)

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EstevanTH commented on September 22, 2024

Okay I will do this! 😉 Now I have a better opinion of this issue! 😁

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Patching pytracemalloc on Windows with Python2.7 about pytracemalloc HOT 13 CLOSED

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