pip install m2crypto error

I had this error on python 2.7.

This happens when the c dependencies for python aren't available and pip attempts to install and compile a package that has a c extension.

sudo apt-get install python-dev

This resolves it for me.

After this install M2Crypto

pip install m2crypto

We are able to use m2crypto on Python 3 with following global packages libssl-dev swig python3-dev gcc

so

sudo apt-get install libssl-dev swig python3-dev gcc

should allow install m2crypto via PIP for Python 3 (tested on version 0.32)

M2Crypto (as of version 0.26) does not officially support Python 3. Officially supported Python versions are:

Programming Language :: Python :: 2.6
Programming Language :: Python :: 2.7

The issue you're having is same as described in https://gitlab.com/m2crypto/m2crypto/issues/114#note_13223251

You can find out which popular libraries are compatible with Python 3 at http://py3readiness.org/

Steps in MAC for python3.X:

First Install.

brew install openssl

Second Swig

brew install swig

Change the SWIG_FEATURES

env LDFLAGS="-L$(brew --prefix openssl)/lib" \ CFLAGS="-I$(brew --prefix openssl)/include" \ SWIG_FEATURES="-cpperraswarn -includeall -I$(brew --prefix openssl)/include" \ pip install m2crypto