ImportError: No module named clr when using CPython of python.org

python .net clr cpython python.net
y_d picture y_d · Oct 31, 2014 · Viewed 17.7k times · Source

I'm writing C++ code which should invoke python scripts underneath. For this purpose I use cpython of python.org. Some of the python scripts execute .net code with help of python for .net and when it comes to .net all this fails. I tried to build test app to verify where it fails and found that it can't import clr module.

When I run this code it give me ImportError: No module named clr

Py_Initialize();
PyRun_SimpleString("import clr");

If I go to python console and type "import clr" everything works fine. I also checked sys.path and it contains the folder where clr.pyd located 'C:\Python27\DLLs'. I also tried setting this path in C++ by:

char* path = "C:\\Python27\\dlls";
Py_Initialize();
PySys_SetArgv(1, &path);
char* phome = Py_GetPythonHome();

But it didn't helped. In addition I don't understand why clr module is appears as clr.pyd and not .pyc like other compiled modules.

Could someone can explain why import clr fails through CPython? Is it possible to make it work?

Answer

jatinkumar patel picture jatinkumar patel · Feb 4, 2015

To install clr, you have to install pythonnet library.

You can install pythonnet using following command.

 pip install pythonnet

Related questions

Python: AttributeError: 'module' object has no attribute 'AddReference'?

Am trying to use clr.AddReference and clr.AddReferenceToFile to import an assembly, but python(2.7) keeps making this error: Traceback (most recent call last): File "<pyshell#5>", line 1, in <module> clr.AddReference("UnityEngine") AttributeError: 'module' object has …

Read More
How do I run a Python script from C#?

This sort of question has been asked before in varying degrees, but I feel it has not been answered in a concise way and so I ask it again. I want to run a script in Python. Let's say it's …

Read More
Python vs C#/.NET -- what are the key differences to consider for using one to develop a large web application?

My organization currently delivers a web application primarily based on a SQL Server 2005/2008 back end, a framework of Java models/controllers, and ColdFusion-based views. We have decided to transition to a newer framework and after internal explorations and mini projects …

Read More