Ignoring invalid distribution -ip

[baterflyrity]

Description

After installing pip via get-pip.py I obtain mystic packages starting from ~ in site packages directory.

Expected behavior

Installing pip on clear python without pip must not flood warnings and create error packages.

pip version

Python version

3.9

OS

Windows 10

How to Reproduce

Reproducing

user@host MINGW64 ~                                                                                 
$ pip list | grep pip                                                                                           
Traceback (most recent call last):                                                                              
  File "C:\Python39\lib\runpy.py", line 197, in _run_module_as_main                                             
    return _run_code(code, main_globals, None,                                                                  
  File "C:\Python39\lib\runpy.py", line 87, in _run_code                                                        
    exec(code, run_globals)                                                                                     
  File "C:\Python39\Scripts\pip.exe\__main__.py", line 4, in <module>                                           
ModuleNotFoundError: No module named 'pip'   

user@host MINGW64 ~                                                                                  
$ curl https://bootstrap.pypa.io/get-pip.py > get-pip.py                                             
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current                                 
                                 Dload  Upload   Total   Spent    Left  Speed                                   
100 1911k  100 1911k    0     0  2359k      0 --:--:-- --:--:-- --:--:-- 2362k                                  
                                                                                                                
user@host MINGW64 ~                                             
$ sudo py ./get-pip.py                                                     
WARNING: Ignoring invalid distribution -ip (c:\python39\lib\site-packages) 
WARNING: Ignoring invalid distribution -ip (c:\python39\lib\site-packages) 
Collecting pip                                                             
  Using cached pip-21.2.4-py3-none-any.whl (1.6 MB)                        
WARNING: Ignoring invalid distribution -ip (c:\python39\lib\site-packages) 
Installing collected packages: pip                                         
WARNING: Ignoring invalid distribution -ip (c:\python39\lib\site-packages) 
Successfully installed pip-21.2.4                                          
WARNING: Ignoring invalid distribution -ip (c:\python39\lib\site-packages) 
WARNING: Ignoring invalid distribution -ip (c:\python39\lib\site-packages) 
WARNING: Ignoring invalid distribution -ip (c:\python39\lib\site-packages) 
                                                                           
user@host MINGW64 ~                                             
$ pip list | grep pip                                                      
WARNING: Ignoring invalid distribution -ip (c:\python39\lib\site-packages) 
pip                       21.2.4                                           
WARNING: Ignoring invalid distribution -ip (c:\python39\lib\site-packages) 
WARNING: Ignoring invalid distribution -ip (c:\python39\lib\site-packages)        

user@host MINGW64 ~
$ ls c:\\python39\\lib\\site-packages | grep ~ip
~ip/
~ip-21.2.3.dist-info/                                                         

Temporary solution

user@host MINGW64 ~
$ rm -rf /c//python39//lib//site-packages/~ip*

user@host MINGW64 ~
$ pip list | grep pip
pip                       21.2.4

user@host MINGW64 ~
$ ls c:\\python39\\lib\\site-packages | grep ~ip

p.s.
sudo is as temporary solution to #9527

Output

No response

Code of Conduct

• I agree to follow the PSF Code of Conduct.

[DiddiLeija]

When pip updates or deletes a package, it renames the package name by replacing the first letter with a ~. I think this a normal behavior.

The problem here is that pip is renaming its own package (pip -> ~ip) without restoring it.

[baterflyrity]

When pip updates or deletes a package, it renames the package name by replacing the first letter with a ~. I think this a normal behavior.

The problem here is that pip is renaming its own package (pip -> ~ip) without restoring it.

It happens during installation of pip but updating or deletation.

[uranusjr]

There are a myriad of things can happen on Windows that make file deletion fail. We should add a message in the warning message to tell the user to delete those files manually.

[arpost]

I see this with many packages on Windows 10 when I use the --force-reinstall option, which appears to be broken on Windows 10. One of the packages I see this with is cffi. It looks like a filename parsing bug because pip keeps generating new files in my site packages directory starting with -ffi, -fi, etc.

[pradyunsg]

Does anyone have a repeatable approach for generating such invalid distributions?

[uranusjr]

Try to hard-crash pip during an uninstallation (something like os._exit(1) that does not allow auto restore to happen), after pip renames the old installation but before actually deleting it.

[baterflyrity]

Try to hard-crash pip during an uninstallation (something like os._exit(1) that does not allow auto restore to happen), after pip renames the old installation but before actually deleting it.

No)) This issue happens during regular installation process.

[uranusjr]

I was answering the question what is a repeatable approach to trigger this. It may not match your experience on hitting the bug, but is the most realiable way to reproduce the phenomenom.

[baterflyrity]

@uranusjr , actually one can just create necessary folders. But i cant consider this as "reproducable approach".

[snoopyjc]

This just happened to me. The requirements_dev.txt I tried installing had an old version of pip listed in it as a requirement and the installed failed as it couldn't remove the running pip command but left me in a state that a pip command would no longer work, then once I followed some repair steps, I started getting tons of warnings and found ~ip and ~ip-21.2.4.dist-info folders in my site-packages.

[DiddiLeija]

@snoopyjc, a quick way to fix this issue is to manually remove those folders. They are harmless.

[uranusjr]

Also if I remember correctly recent pip versions would no longer complain about this (and would simply leave those trash folders there, for better or for worse). So I’ll close this.

[snoopyjc]

@snoopyjc, a quik way to fix this issue is to manually remove those folders. They are harmless.

Yes that’s what I did - thanks!!

[baterflyrity]

Also if I remember correctly recent pip versions would no longer complain about this (and would simply leave those trash folders there, for better or for worse). So I’ll close this.

Ignoring a problem does not solve the problem.