Pip install returning a ValueError

Question

I recently tried to install a library using Pip, and I received this error message. I am unable to install any packages, as the same error message keeps popping up.

I notice this problem in both my main enviroment, and my venv Virtual Environment.

Any help will be much appreciated.

WARNING: Ignoring invalid distribution -illow (c:\users\brdwoo\appdata\local\programs\python\python39\lib\site-packages)
WARNING: Ignoring invalid distribution -aleido (c:\users\brdwoo\appdata\local\programs\python\python39\lib\site-packages)
WARNING: Ignoring invalid distribution -illow (c:\users\brdwoo\appdata\local\programs\python\python39\lib\site-packages)
WARNING: Ignoring invalid distribution -aleido (c:\users\brdwoo\appdata\local\programs\python\python39\lib\site-packages)
ERROR: Exception:
Traceback (most recent call last):
  File "c:\users\brdwoo\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\cli\base_command.py", line 167, in exc_logging_wrapper
    status = run_func(*args)
  File "c:\users\brdwoo\appdata\local\programs\python\python39\lib\site-packages\pip\_internal\cli\req_command.py", line 205, in wrapper
    return func(self, options, args)

  ...

    resp = self.send(prep, **send_kwargs)
  File "c:\users\brdwoo\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\requests\sessions.py", line 645, in send
    r = adapter.send(request, **kwargs)
  File "c:\users\brdwoo\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\cachecontrol\adapter.py", line 57, in send
    resp = super(CacheControlAdapter, self).send(request, **kw)
  File "c:\users\brdwoo\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\requests\adapters.py", line 440, in send
    resp = conn.urlopen(
  File "c:\users\brdwoo\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\urllib3\connectionpool.py", line 703, in urlopen
    httplib_response = self._make_request(
  File "c:\users\brdwoo\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\urllib3\connectionpool.py", line 386, in _make_request
    self._validate_conn(conn)
  File "c:\users\brdwoo\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\urllib3\connectionpool.py", line 1040, in _validate_conn
    conn.connect()
  File "c:\users\brdwoo\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\urllib3\connection.py", line 401, in connect
    context.verify_mode = resolve_cert_reqs(self.cert_reqs)
  File "c:\users\brdwoo\appdata\local\programs\python\python39\lib\ssl.py", line 720, in verify_mode
    super(SSLContext, SSLContext).verify_mode.__set__(self, value)
ValueError: Cannot set verify_mode to CERT_NONE when check_hostname is enabled.
WARNING: Ignoring invalid distribution -illow (c:\users\brdwoo\appdata\local\programs\python\python39\lib\site-packages)
WARNING: Ignoring invalid distribution -aleido (c:\users\brdwoo\appdata\local\programs\python\python39\lib\site-packages)
WARNING: Ignoring invalid distribution -illow (c:\users\brdwoo\appdata\local\programs\python\python39\lib\site-packages)
WARNING: Ignoring invalid distribution -aleido (c:\users\brdwoo\appdata\local\programs\python\python39\lib\site-packages)
WARNING: There was an error checking the latest version of pip.

Yasaman Asiaee · Accepted Answer · 2022-08-04 15:02:10Z

10

This occurs due to files names with the '~' prefix in site-packages. Please remove those files / folders. It will solve your problem.

answered Aug 4, 2022 at 15:02

Yasaman Asiaee

1114 bronze badges

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2 Comments

phd Over a year ago

Just warnings. Have nothing with SSL checking host names.

Svenito Over a year ago

This is the solution to remove the warnings. It is not the solution to the ERROR of the question. However, it's worth mentioning I think.

mikb · Accepted Answer · 2022-10-13 05:28:21Z

6

Do you have pip-system-certs installed? Try uninstalling it, and see if your problem goes away. It did for me (but I am unsure of the consequences in a python 3.10 environment)

answered Oct 13, 2022 at 5:28

mikb

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Comments

drew wood · Accepted Answer · 2022-08-25 19:31:41Z

3

I was able to fix the problem by hard-coding in a 1, instead of having CERT_NONE being passed to verify_mode.

The error message gave me the location of the code:

 File "C:\Users\name\AppData\Local\Programs\Python\Python310\lib\ssl.py", line 738, in verify_mode
    super(SSLContext, SSLContext).verify_mode.__set__(self, 0)
ValueError: Cannot set verify_mode to CERT_NONE when check_hostname is enabled.

I swapped the variable value -> 1

@verify_mode.setter
def verify_mode(self, value):
    super(SSLContext, SSLContext).verify_mode.__set__(self, 1)

answered Aug 25, 2022 at 19:31

drew wood

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1 Comment

GNETO DOMINIQUE Over a year ago

Please canb bring more explanation on how you handled it @drew because I dont understand what you have done .

Dimo Todorov · Accepted Answer · 2023-03-11 07:49:51Z

0

[WARNING: Ignoring invalid distribution -ip (~lib\site-packages)e][1]

Hello, I had a similar problem where Visual Studio Code couldn't find installed libraries. The problem occurred after updating the Python version. What I did is shown in the steps 1 and 2 in the picture - I selected the Python version from the dropdown in the upper right corner, and in step 2, I switched to an older, working version. I hope this helps someone... [1]: https://i.sstatic.net/zDjr4.jpg

edited Mar 11, 2023 at 7:49

answered Mar 11, 2023 at 7:47

Dimo Todorov

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Comments

Veran · Accepted Answer · 2023-12-08 19:17:55Z

0

If anyone happens to be using a Google Colab notebook like me, I was able to resolve this issue by Selecting "runtime" at the top, and then fully disconnecting and restarting the code in a new runtime.

answered Dec 8, 2023 at 19:17

Veran

1

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