Microsoft Windows Python-3.6 PyCrypto installation error

windows visual-studio pycrypto python-3.6
user1602 picture user1602 · Jan 25, 2017 · Viewed 45.6k times · Source

pip install pycrypto works fine with python3.5.2 but fails wiht python3.6 with the following error:

inttypes.h(26): error C2061: syntax error: identifier 'intmax_t'

Answer

user1602 picture user1602 · Jan 25, 2017

The file include\pyport.h in Python installation directory does not have #include < stdint.h > anymore. This leaves intmax_t undefined.

A workaround for Microsoft VC compiler is to force include stdint.h via OS environment variable CL:

  1. Open command prompt
  2. Setup VC environment by runing vcvars*.bat (choose file name depending on VC version and architecture)
  3. set CL=-FI"Full-Path\stdint.h" (use real value for Full-Path for the environment)
  4. pip install pycrypto

Related questions

How do you clear your Visual Studio cache on Windows Vista?

I have a problem where my ASP.NET controls are not able to be referenced from the code behind files. I found a solution in Stack Overflow question ASP.NET controls cannot be referenced in code-behind in Visual Studio 2008. But …

Read More
How to completely uninstall Visual Studio 2010?

I've been looking to find a CLEAN solution to completely and ultimately remove Visual Studio 2010 from my computer. When you install Visual Studio, it also installs a bunch of programs (about 55) in the add/remove programs panel (appwiz.cpl). I've …

Read More
How do include paths work in Visual Studio?

Visual Studio drives me crazy and I am suspecting I am doing something wrong. This is what I do: I installed Visual Studio (Pro '08) a long time ago, I installed the Windows SDK (Win 7 x64), someone emails me a …

Read More