Mac OS Python 3.6 无法通过 pip 安装任何包（TLS/SSL 证书）

Question

I'm on Mac OS 10.15.2 (Catalina). Python 2 and 3.7 were pre-installed ( /usr/bin/python , /usr/bin/python3 ), and I have installed Python 3.6 with brew ( /usr/local/bin/python3 ). Also, I'm using a virtual environment as follows:

1. virtualenv -p <dir_python> venv (to create venv)
2. source venv/bin/activate (to activate venv)
3. pip install <package> (to install packages)

When I use Python 2 and 3.7 to create the virtual env, everything works fine. Whenever I'm using Python 3.6 I cannot install anything . For example, with 'numpy', I get the following:

WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.

WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.",)': /simple/numpy/

... retrying for four more times ...  

Could not fetch URL https://pypi.org/simple/numpy/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/numpy/ (Caused by SSLError("Can't connect to HTTPS URL because the SSL module is not available.",)) - skipping

ERROR: Could not find a version that satisfies the requirement numpy (from versions: none)

ERROR: No matching distribution found for numpy

I have tried a few things from other posts that described what was appearing to be something similar but none of the following helped , such as:

• Uninstalling and re-installing Python 3.6
• pip install --upgrade pip --trusted-host pypi.org --trusted-host files.pythonhosted.org pip setuptools

Any help is much appreciated! Thanks.

Answer 1

I've had the same issue.

To fix it, I just updated python using brew.

brew upgrade python3