So I have a Python 3 program which I turn into an executable using
cx_Freeze... on the machine where I do builds I recently upgraded from
Python 3.1.2 to Python 3.1.3. After I did so, the program built with
cx_Freeze began failing whenever I tried to import urllib.request. The
failure was:
Traceback (most recent call last):
File "../redacted.py", line 389, in version_report
import urllib.request
File
"/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/urllib/request.py",
line 2180, in <module>
from _scproxy import _get_proxy_settings, _get_proxies
ImportError: No module named _scproxy
I do not appear to see this problem on Windows (though I have tested
only with 3.1.2 on Windows). I do not see the problem if I run the
script using the command-line python instead of going through
cx_Freeze. And the problem goes away if I downgrade from Python 3.1.3
back to Python 3.1.2 (and then rebuild with cx_Freeze).
Also, other than this one exception thrown when I import
urllib.request, the program works fine. I am able to import other
modules including other urllib modules without incident. If I attempt
to directly import the mysterious _scproxy module with an import
_scproxy statement in my top level .py file, the import _scproxy
succeeds when I run with command-line python 3.1.3 and fails ("no
module named") when I build an executable with cx_Freeze and run that.
It might be this is something messed up in my build script, or
something is getting corrupted by the way I installed 3.1.3 over
3.1.2. However is it possible this is a bug? For the time being I'm
just downgrading to 3.1.2.
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