I create a virtual enviroment with virtualenvwrapper and then I try to install django in it with pip. However I keep getting an error due to a conflict in python versions.
$ mkvirtualenv env
$ workon env
$ pip install django
Downloading/unpacking django
Cleaning up...
Exception:
Traceback (most recent call last):
File "/Users/mingot/virtualenvs/env/lib/python2.7/site-packages/pip/basecommand.py", line 134, in main
status = self.run(options, args)
File "/Users/mingot/virtualenvs/env/lib/python2.7/site-packages/pip/commands/install.py", line 236, in run
requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
File "/Users/mingot/virtualenvs/env/lib/python2.7/site-packages/pip/req.py", line 1085, in prepare_files
url = finder.find_requirement(req_to_install, upgrade=self.upgrade)
File "/Users/mingot/virtualenvs/env/lib/python2.7/site-packages/pip/index.py", line 201, in find_requirement
page = self._get_page(main_index_url, req)
File "/Users/mingot/virtualenvs/env/lib/python2.7/site-packages/pip/index.py", line 554, in _get_page
return HTMLPage.get_page(link, req, cache=self.cache)
File "/Users/mingot/virtualenvs/env/lib/python2.7/site-packages/pip/index.py", line 671, in get_page
resp = urlopen(url)
File "/Users/mingot/virtualenvs/env/lib/python2.7/site-packages/pip/download.py", line 176, in __call__
response = self.get_opener(scheme=scheme).open(url)
File "/Users/mingot/virtualenvs/env/lib/python2.7/site-packages/pip/download.py", line 238, in get_opener
headers.append(("User-agent", build_user_agent()))
File "/Users/mingot/virtualenvs/env/lib/python2.7/site-packages/pip/download.py", line 35, in build_user_agent
_implementation = platform.python_implementation()
File "/Users/mingot/soft/anaconda/lib/python2.7/platform.py", line 1486, in python_implementation
return _sys_version()[0]
File "/Users/mingot/soft/anaconda/lib/python2.7/platform.py", line 1451, in _sys_version
repr(sys_version))
ValueError: failed to parse CPython sys.version: '2.7.5 (default, Aug 25 2013, 00:04:04) \n[GCC 4.2.1 Compatible Apple LLVM 5.0 (clang-500.0.68)]'
In the system, I am running python anaconda:
$ python
Python 2.7.5 |Anaconda 1.8.0 (x86_64)| (default, Oct 24 2013, 07:02:20)
[GCC 4.0.1 (Apple Inc. build 5493)] on darwin
and the $PATH is set to
/Users/mingot/soft/anaconda/bin:/usr/local/bin:/usr/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/texbin:/opt/X11/bin
while inside the virtual enviroment, the python version is:
(env)$ python
Python 2.7.5 (default, Aug 25 2013, 00:04:04)
[GCC 4.2.1 Compatible Apple LLVM 5.0 (clang-500.0.68)] on darwin
and the $PATH:
/Users/mingot/virtualenvs/env/bin:/Users/mingot/soft/anaconda/bin:/usr/local/bin:/usr/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/texbin:/opt/X11/bin
I understand that the problem is that inside the virtual enviroment, while executing the non anaconda python 2.7.5, it is still using platforms.py from anaconda library, causing the crash in the evaluation of the regex as suggested here. I do not care which python version to use inside the virtual enviroment. Any suggestion on how to tell the python of inside the virtual enviroment the correct platforms.py to use?
Thanks!
I ran into the same issue on a Mac with Anaconda installed. The way I fixed it was searching for platform.py, then modifying the following (commenting out a line):
ORIGINAL
_sys_version_parser = re.compile(
r'([\w.+]+)\s*'
'\|[^|]*\|\s*' # version extra
'\(#?([^,]+),\s*([\w ]+),\s*([\w :]+)\)\s*'
'\[([^\]]+)\]?')
CHANGE TO
_sys_version_parser = re.compile(
r'([\w.+]+)\s*'
#'\|[^|]*\|\s*' # version extra # Just comment this line out
'\(#?([^,]+),\s*([\w ]+),\s*([\w :]+)\)\s*'
'\[([^\]]+)\]?')
This is with virtualenv==1.10.1 and anaconda 1.9.2