parse error at '-irtuale', but virtualenv is correct

[ujinyng]

Environment

• pip version: 19.3.1 and 19.2.3
• Python version: 3.7.6
• OS: mac catalina

Description

In locale home directory
I try this :
pip freeze>tflist.txt

but show :
WARNING: Could not generate requirement for distribution -irtualenv 20.0.4 (/usr/local/lib/python3.7/site-packages): Parse error at "'-irtuale'": Expected W:(abcd...)

and the file tflist.txt is generated, but empty.

I think 'virtualenv' is correct, but when I command 'pip list'
the result is :

Package            Version
------------------ -------
-irtualenv         20.0.4

.
.
.

but I cannot uninstall -rtualenv.
I try this : pip uninstall -irtualenv, and pip uninstall virtualenv
Both are failed, the message is is not installed

well, I succese to reinstall virtualenv, using pip install virtualenv

but How can I remove the wrong name package?
and who knows why the problem happens?

when I try pip freeze
'-virtualenv', the worng name is not involved the ouput .
So I think maybe the pip list command is wrong and have some bug. etc. parse error..

[pradyunsg]

Hi! Thanks for filing this @ujinyoung!

Could you provide the output of running ls -l /usr/local/lib/python3.7/site-packages on this system?

[no-response]

This issue has been automatically closed because there has been no response to our request for more information from the original author. With only the information that is currently in the issue, we don't have enough information to take action. Please reach out if you have or find the answers we need so that we can investigate further.

[ujinyng]

Hi! Thanks for filing this @ujinyoung!

Could you provide the output of running ls -l /usr/local/lib/python3.7/site-packages on this system?

Now, pip freeze works properly and not warning and virtualenv or -irtualenv are not included in pip list

But ls -l /usr/local/lib/python3.7/site-packages
The output contains
~irtualenv-20.0.4.dist-info , not virtualenv or -irtualenv

[uranusjr]

You will need to delete the (corrupted) ~irtualenv-20.0.4.dist-info manually, unfortunately. pip cannot delete things it does not recognise, since it can’t be sure if the users put it there themselves intentionally.