How to compile Pycrypto 2.4.1 (python 3.2.2 for Windows 7 x64)

How to compile Pycrypto 2.4.1 (python 3.2.2 for Windows 7 x64)

Nov 10

Posted by Alesk

This note was a variation of note that talks about compiling cx_oracle module for Python 3.2 (64-bit), but this time around I wanted to try out Pycrypto module v2.4.1 that supports Python 3. Let me say this I first tried to build Pycrypto with MinGW using TLDR experimental installation The package for Windows x64. Making Long story short, it is a bummer (I-hit several errors that I-didn ' t knowhow to resolve), I didn ' t even Try if 32-bit module could is compiled with MinGW. Anyway, I believe sticking with VC/bulky SDK (over 5GB of installed sw!) are inevitable, at least for me. Here's re the steps that I followed ....

My target platform for the Pycrypto build is Windows 7 Professional x64 (SP1) with 64-bit python 3.2.2.

1) Download and install Visual Studio Express SP1 from MS site

It ' s mandatory to build Python modules with VC, because this is the compiler that was used
To build Python 3.2. Note that I installed the default components of the Visual Studio in the default location.

2) Because Visual Studio Express SP1 doesn ' t ship with 64-bit compiler, download
and install Windows SDK for Windows 7 and. NET 3.5 SP1.

Again, Don's is tempted to the install newer Windows SDK for Windows 7 and. NET 4, it must is older SDK (released in 2009). I left all installation options at default.

3) Download and install 64-bit python 3.2.2

Ok, this is obvious step. :-)

4) Download Pycrypto 2.4.1

After your download unzip pycrypto-2.4.1.tar.gz in some temporary directory, such as C:\Temp

5) Prepare command shell for 64-bit compiler:

Start -> Run

%comspec% /k ""C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\bin\vcvars64.bat""


Then enter the following in the command line:

SET PATH=C:\PYTHON32;%PATH%

SET pythonhome=c:\python32\

CD C:\Temp\pycrypto-2.4.1

Python setup.py Build

python setup.py bdist_wininst


In dist directory you ' ll find installation file:

pycrypto-2.4.1.win-amd64-py3.2.exe


After you install Pycrypto, check the It works:

cmd> python
>>> import Crypto
>>> print(Crypto.__version__)
2.4.1

How to compile Pycrypto 2.4.1 (python 3.2.2 for Windows 7 x64)