Not able to install Python packages [SSL: TLSV1_ALERT_PROTOCOL_VERSION]

Question

I am trying to install a Python library using pip, getting an SSL error:

~/projects/base  pre-master±  pip install xdict

Collecting xdict
  Co         


        

Answer 1

Check your TLS version:

python2 -c "import urllib2,json; print(json.loads(urllib2.urlopen('https://www.howsmyssl.com/a/check').read())['tls_version'])"

If your TLS version is less than 1.2 you have to upgrade it since the PyPI repository is on a brownout period of deprecating early TLS.

Source - Time To Upgrade Your Python: TLS v1.2 Will Soon Be Mandatory

You can upgrade the TLS version using the following command:

sudo apt-get update && sudo apt-get install openssl libssl-dev

This should fix your problem. Good luck!

EDIT: You can download packages using your own private python package repository regardless of TLS version. Private Python Package Repository

Answer 2

I tried all existing fixes and not working for me

I re-install python 2.7 (will also install pip) by downloading .pkg at https://www.python.org/downloads/mac-osx/

works for me after installation downloaded pkg

Answer 3

The answers of installing pip via:

1. curl https://bootstrap.pypa.io/get-pip.py |sudo python or
2. curl https://bootstrap.pypa.io/get-pip.py | python

did not work for me as I kept on getting the error:

Could not fetch URL https://pypi.org/simple/pip/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/pip/ (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 pip (from versions: none)
ERROR: No matching distribution found for pip

I had to install pip manually via:

1. Go the pip distribution website
2. Download the tar.gz version
3. Unpack the file locally and cd into the directory
4. run python setup.py install

Answer 4

To upgrade the local version I used a slight variant:

curl https://bootstrap.pypa.io/get-pip.py | python - --user

This problem arises if you keep your pip and packages under your home directory as described in this gist.

Answer 5

The following solution worked for me:

brew install python2

It also upgraded pip to version 1.10.1