Could not install packages due to an EnvironmentError: Could not find a suitable TLS CA certificate bundle, invalid path

Question

I get this error:

Could not install packages due to an EnvironmentError: Could not find a suitable TLS CA certificate bundle, invalid path: /home/yosra/Desktop/CERT.RSA

When I run: $ virtualenv venv

So I put a random CERT.RSA on the Desktop which worked and I created my virtual environment, but then when I run: pip install -r requirements.txt

I got this one:

Could not install packages due to an EnvironmentError: HTTPSConnectionPool(host='github.com', port=443): Max retries exceeded with url: /KristianOellegaard/django-hvad/archive/2.0.0-beta.tar.gz (Caused by SSLError(SSLError(0, 'unknown error (_ssl.c:3715)'),))

I feel that these 2 errors are linked to each other, but I want to know how can I fix the first one?

Answer 1

If you're on Mac (mine is 10.13.6), use the following command:

(security find-certificate -a -p ls /System/Library/Keychains/SystemRootCertificates.keychain &&        security find-certificate -a -p ls /Library/Keychains/System.keychain) > $HOME/.mac-ca-roots

Then do modify .bashrc with

export REQUESTS_CA_BUNDLE="$HOME/.mac-ca-roots"

Then do

$ source ~/.bashrc

Answer 2

You need to allow pip to reference to the correct certificate. check the certificate first;

python -c "import certifi; print(certifi.where())"

Then first test it manually;

pip install -r requirements.txt --cert=<the above certificate path>

If that works fine, then update this path on pip.conf file located at $HOME/.pip/pip.conf (or %APPDATA%\pip\pip.ini on Windows). e.g.

[global]
cert = /usr/local/share/ca-certificate/mycert.crt

Answer 3

In Windows 10, 1. Find the location of certifi with following commands to check if installed already

import certifi
certifi.where()

2. Note down the path of cacert.pem file

3. Search for the pip.ini file in windows explorer and edit the file in notepad and set the path = <file path of cacert.pem >

Answer 4

I received this error while running the command as "pip install flask" in Pycharm.

If you look at the error, you will see that the error points out to "packages due to an EnvironmentError: Could not find a suitable TLS CA certificate bundle -- Invalid path".

I solved this by removing the environment variable "REQUESTS_CA_BUNDLE" OR you can just change the name of the environment variable "REQUESTS_CA_BUNDLE" to some other name.

Restart your Pycharm and this should be solved.

Thank you !