pip install --download throws error when used with setup.py file

So here’s the case, If i do

pip install /path/to/mypackage

it works like expected extract proper requirements and install everything that is defined in mypackage setup.py file.

When i do

 mkdir /tmp/downloadcache
 pip install --download /tmp/downloadcache /path/to/mypackage

It throws an exception:

------------------------------------------------------------
/home/ubuntu/.virtualenvs/xxx/bin/pip run on Fri Mar  8 12:56:30 2013
Unpacking /appz/mypackage

  Running setup.py egg_info for package from file:///appz/mypackage

    Traceback (most recent call last):

      File "<string>", line 16, in <module>

    IOError: [Errno 2] No such file or directory: '/tmp/pip-AZvxJb-build/setup.py'

    Complete output from command python setup.py egg_info:

    Traceback (most recent call last):

  File "<string>", line 16, in <module>

IOError: [Errno 2] No such file or directory: '/tmp/pip-AZvxJb-build/setup.py'

----------------------------------------

Command python setup.py egg_info failed with error code 1 in /tmp/pip-AZvxJb-build

Exception information:
Traceback (most recent call last):
  File "/home/ubuntu/.virtualenvs/xxx/local/lib/python2.7/site-packages/pip/basecommand.py", line 139, in main
    status = self.run(options, args)
  File "/home/ubuntu/.virtualenvs/xxx/local/lib/python2.7/site-packages/pip/commands/install.py", line 266, in run
    requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
  File "/home/ubuntu/.virtualenvs/xxx/local/lib/python2.7/site-packages/pip/req.py", line 1052, in prepare_files
    req_to_install.run_egg_info()
  File "/home/ubuntu/.virtualenvs/xxx/local/lib/python2.7/site-packages/pip/req.py", line 236, in run_egg_info
    command_desc='python setup.py egg_info')
  File "/home/ubuntu/.virtualenvs/xxx/local/lib/python2.7/site-packages/pip/util.py", line 662, in call_subprocess
    % (command_desc, proc.returncode, cwd))
InstallationError: Command python setup.py egg_info failed with error code 1 in /tmp/pip-AZvxJb-build

[deveshks]

Hi @pradyunsg , @dstufft

Since pip install --download is now deprecated in favor of pip download, is this error still valid?

If yes, what would be the updated instructions to reproduce this and try to add the appropriate error/warning?

[dstufft]

Just as a note, the issue here appears to be that while pip download path/to/project successfully downloads all of the dependencies and claims to have downloaded the top level project, it has not in fact done so.

I’m not entirely sure what behavior would be expected though, because there is no artifact to download from an unpacked directory. Possibly this should just be an error or a warning that it can’t download a directory.