pip uninstall fails when console-scripts stubs include upper case characters

• Pip version: 8.1.2
• Python version: 3.5.1
• Operating System: OS X 10.11.5

Description:

If I define a console-scripts stub with upper case characters it installs fine but when I come to uninstall (with ‘pip uninstall <package>’), I get a FileNotFound exception because it has lower-cased the filename.

What I’ve run:

In setup.py I have the following which defines a stub with filename myScript:

entry_points={ 'console_scripts': ['myScript=mypackage:mymodule:main'] },

…and then when I uninstall I get the error:

Exception:
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/shutil.py", line 538, in move
    os.rename(src, real_dst)
FileNotFoundError: [Errno 2] No such file or directory: '/Library/Frameworks/Python.framework/Versions/3.5/bin/myscript' -> '/var/folders/b7/21c2x2g57nj4twr97bzb1rp5cw85hb/T/pip-8g3gry4t-uninstall/Library/Frameworks/Python.framework/Versions/3.5/bin/myscript'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/pip/basecommand.py", line 215, in main
    status = self.run(options, args)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/pip/commands/uninstall.py", line 76, in run
    requirement_set.uninstall(auto_confirm=options.yes)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/pip/req/req_set.py", line 336, in uninstall
    req.uninstall(auto_confirm=auto_confirm)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/pip/req/req_install.py", line 742, in uninstall
    paths_to_remove.remove(auto_confirm)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/pip/req/req_uninstall.py", line 115, in remove
    renames(path, new_path)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/pip/utils/__init__.py", line 267, in renames
    shutil.move(old, new)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/shutil.py", line 552, in move
    copy_function(src, real_dst)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/shutil.py", line 251, in copy2
    copyfile(src, dst, follow_symlinks=follow_symlinks)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/shutil.py", line 114, in copyfile
    with open(src, 'rb') as fsrc:
FileNotFoundError: [Errno 2] No such file or directory: '/Library/Frameworks/Python.framework/Versions/3.5/bin/myscript'

The above output shows that something has lowercased the filename before trying to delete the file. Do we need a similar fix to that that was done here: #3324 ?

[michael-sanders]

@ed11s8c If you use setup.py to install (rather than pip) then what you’re seeing is a known issue:

$ pip help uninstall

Usage:
  pip uninstall [options] <package> ...
  pip uninstall [options] -r <requirements file> ...

Description:
  Uninstall packages.

  pip is able to uninstall most installed packages. Known exceptions are:

  - Pure distutils packages installed with ``python setup.py install``, which
    leave behind no metadata to determine what files were installed.
  - Script wrappers installed by ``python setup.py develop``.

[NathanDunfield]

I just tested in the same manner as my comment above (on macOS 10.12 with Pythons 2.7. 3.5, and 3.6), and this problem went away in pip 10 and is not present in pip 18. So I think this ticket may safely be closed.