I think some characters are not allowed to name a download directory in Windows. Says: comma : question ?, exclaim !

I came across this case when download the presentation
http://www.infoq.com/presentations/kaizen-techniques with title Kaizen: The Key to Continuous Improvement

The command said WindowsError: [Error 267] The directory name is invalid: 'downloads\Kaizen: The Key to Continuous Improvement'

C:\Users\Dimitry\Downloads>infoq_downloader.exe http://www.infoq.com/presentations/responsive-design
Downloading HTML file
Traceback (most recent call last):
File "", line 35, in
IndexError: list index out of range

Put the original website logo & link, to respect their effort.

houndgeo on reddit asked for it http://www.reddit.com/r/programming/comments/1se45a/download_infoq_slides_video_locally_using_this_app/

here is the error:
requests.exceptions.MissingSchema: Invalid URL '//d1snlc0orfrhj.cloudfront.net/presentations-br/qconsp2015-LucianoRamalho-Python.mp4': No schema supplied. Perhaps you meant http:////d1snlc0orfrhj.cloudfront.net/presentations-br/qconsp2015-LucianoRamalho-Python.mp4?

this worked like a charm:
video_url = 'http:%s' % video_url

See this error - it appears to be failing because of a trailing space on the name of the presentation.

infoq_downloader http://www.infoq.com/presentations/fault-tolerance-101-qcon-london
Downloading HTML file
Traceback (most recent call last):
File "", line 61, in
File "F:\tayseer\projects\infoq-downloader-player\build\infoq_downloader\out00
-PYZ.pyz\os", line 157, in makedirs
WindowsError: [Error 3] The system cannot find the path specified: 'downloads\Fault Tolerance 101 /slides'

I needed to install the following packages:

sudo apt-get install python-pip libxslt1-dev python-dev 

Also I had to run pip with sudo.

$ python infoq_downloader.py http://www.infoq.com/presentations/db-history-data-processing\?utm_source\=infoq\&utm_medium\=videos_homepage\&utm_campaign\=videos_row2
Downloading HTML file
Traceback (most recent call last):
File "infoq_downloader.py", line 80, in
if not os.path.exists('{}/slides'.format(presentation_directory)):
UnicodeEncodeError: 'ascii' codec can't encode character u'\u2019' in position 31: ordinal not in range(128)

$ git log
Sun Oct 19 10:19:24 2014 +0200 dead91c (HEAD, origin/master, origin/HEAD, master) Merge pull request #14 from alefnula/py3 [Mohammad Tayseer]

Hi,

I'm getting an error when attempting to download a presentation (@Windows):
C:\Users\me\Desktop>infoq_downloader.exe https://www.infoq.com/presentations/panel-business-data-science

Downloading HTML file Traceback (most recent call last): File "<string>", line 32, in <module>
File "F:\tayseer\projects\infoq-downloader-player\build\infoq_downloader\out00-PYZ.pyz\requests.api", line 55, in get
File "F:\tayseer\projects\infoq-downloader-player\build\infoq_downloader\out00-PYZ.pyz\requests.api", line 44, in request
File "F:\tayseer\projects\infoq-downloader-player\build\infoq_downloader\out00-PYZ.pyz\requests.sessions", line 354, in request
File "F:\tayseer\projects\infoq-downloader-player\build\infoq_downloader\out00-PYZ.pyz\requests.sessions", line 460, in send
File "F:\tayseer\projects\infoq-downloader-player\build\infoq_downloader\out00-PYZ.pyz\requests.adapters", line 250, in send
requests.exceptions.SSLError: [Errno 185090050] _ssl.c:343: error:0B084002:x509 certificate routines:X509_load_cert_crl_file:system lib

After run this command:

python infoq_downloader.py http://www.infoq.com/presentations/LMAX

I got the following message:
Downloading HTML file
Traceback (most recent call last):
File "infoq_downloader.py", line 38, in
video_url = html_doc.cssselect('video > source')[0].attrib['src']
IndexError: list index out of range

Must be after #4

try downloading http://www.infoq.com/presentations/aeron-messaging