I am trying to set up wfastcgi on IIS6 for Windows 7, but it can't find my 'app.py' file. I used http://netdot.co/2015/03/09/flask-on-iis/ as my directions for setting it up. Below is the error message I am receiving. In my search for finding the answer, the most likely solution was that it was a permissions issue, I believe I gave the permissions correctly, but still no luck.
Error occurred while reading WSGI handler:
Traceback (most recent call last):
File "C:\inetpub\wwwroot\Flask_Proj\wfastcgi.py", line 712, in main env, handler = read_wsgi_handler(response.physical_path)
File "C:\inetpub\wwwroot\Flask_Proj\wfastcgi.py", line 569, in read_wsgi_handler return env, get_wsgi_handler(handler_name)
File "C:\inetpub\wwwroot\Flask_Proj\wfastcgi.py", line 552, in get_wsgi_handler raise ValueError('"%s" could not be imported' % handler_name)
ValueError: app.app could not be imported StdOut: StdErr:
Here is the Web.config
file
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appSettings>
<add key="WSGI_HANDLER" value="app.app" />
<add key="PYTHONPATH" value="C:\inetpub\wwwroot\Flask_Proj\" />
</appSettings>
<system.webServer>
<handlers accessPolicy="Read, Script">
<add name="FlaskHandler" path="*" verb="*" modules="FastCgiModule" scriptProcessor="C:\Python34\python.exe|C:\inetpub\wwwroot\Flask_Proj\wfastcgi.py" resourceType="Unspecified" requireAccess="Script" />
</handlers>
</system.webServer>
</configuration>
Also, to make your life easier, here's a snippet of the code to the wfastcgi.py
file:
def get_wsgi_handler(handler_name):
if not handler_name:
raise Exception('WSGI_HANDLER env var must be set')
if not isinstance(handler_name, str):
if sys.version_info >= (3,):
handler_name = handler_name.decode(sys.getfilesystemencoding())
else:
handler_name = handler_name.encode(sys.getfilesystemencoding())
module_name, _, callable_name = handler_name.rpartition('.')
should_call = callable_name.endswith('()')
callable_name = callable_name[:-2] if should_call else callable_name
name_list = [(callable_name, should_call)]
handler = None
while module_name:
try:
handler = __import__(module_name, fromlist=[name_list[0][0]])
for name, should_call in name_list:
handler = getattr(handler, name)
if should_call:
handler = handler()
break
except ImportError:
module_name, _, callable_name = module_name.rpartition('.')
should_call = callable_name.endswith('()')
callable_name = callable_name[:-2] if should_call else callable_name
name_list.insert(0, (callable_name, should_call))
handler = None
if handler is None:
raise ValueError('"%s" could not be imported' % handler_name)
return handler
Here are some links I had found to similar issues:
https://www.experts-exchange.com/questions/28937664/Installing-Flask-app-on-IIS7.html
https://social.msdn.microsoft.com/Forums/en-US/3113de0a-3385-48dc-872b-d70deac071c6/azure-flask-python-could-not-be-imported-error-500-azure-website?forum=windowsazurewebsitespreview
I figured out what I had been doing wrong. It was a silly mistake, but based on my searches I probably am not the only one. I installed python, but i did not pip install Flask. Once I got that running everything else was much easier to figure out.