Python 3.3 and Installing PyOpenSSL on a Mac

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Here’s how you can install pyOpenSSL on OS X (or just about any other platform):

  1. Install pip
    1. Install it using a package for your operating system. For example, if you use brew, brew install pip.
    2. If there is no package for your operating system, download https://raw.github.com/pypa/pip/master/contrib/get-pip.py
    3. Run it (probably as root, unfortunately): sudo python get-pip.py
  2. Install virtualenv using pip – pip install --user virtualenv
  3. Create a virtualenv to install pyOpenSSL into – virtualenv ~/Environments/pyOpenSSL-stuff
  4. Activate the virtualenv – . ~/Environments/pyOpenSSL-stuff/bin/activate
  5. Install pyOpenSSL with pip – pip install pyopenssl

At this point you have pyOpenSSL installed in a virtualenv. Any time you want to use pyOpenSSL you’ll need to activate the virtualenv. I suggest that you actually create a virtualenv for each project of yours that you work on and install all of the necessary dependencies for each project into that project’s virtualenv.

This does result in a lot of duplicate installations of packages. Unfortunately this seems to be the state of the art for Python package installation. Fortunately most Python packages are rather small.

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