I started the simplest of C projects in visual studio and it fails

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VS2017

I copied an example on U-tube, all i have is an include file and a simple c file which includes the include file (the include file constains '#include <python.h>). I copied the example, the directories are setup correctly as far as i can tell.

Visual Studio Message...

1>------ Build started: Project: CProjectVS2017, Configuration: Release Win32 ------
1>Object reference not set to an instance of an object.
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

What could be going wrong??

What I have tried:

There are no helpfull error messages so i have no idea what to try...

Posted 19-Feb-19 6:43am

Member 14155761

Updated 19-Feb-19 7:44am

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Richard MacCutchan 19-Feb-19 13:28pm

You are trying to use a reference that has not been initialised to point to anything. But without seeing your code we have no way of guessing what or where. You describe this as the simplest C project, so where does Python come into it?

Member 14155761 20-Feb-19 11:48am

There are only include statements, i was copying this example (but using VS 2017 instead of VS 2010)

Writing a C++ extension for Python 2.7 with Visual Studio - YouTube[^]

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

CPallini · Answer 1 · 2019-02-19T07:45:00

Solution 3

Embedding Python is not the simplest C project. You have to carefully follow the steps presented in a up-to-date tutorial.

Posted 19-Feb-19 7:45am

CPallini

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Member 14155761 20-Feb-19 11:47am

Only include statements, i was copying this example (but using VS 2017 instead of VS 2010)

Writing a C++ extension for Python 2.7 with Visual Studio - YouTube[^]

RickZeeland · Answer 2 · 2019-02-19T06:54:00

Solution 1

It could be that you need to compile as x64, see answer here: c++ - can't include Python.h in visual studio - Stack Overflow[^]

Posted 19-Feb-19 6:54am

RickZeeland

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Member 14155761 19-Feb-19 13:02pm

Hi thanks for the reply. Its not complaining about the Python.h include (although it does complain if i switch to 64 bit, i'm using 32 bit Python2.7).

Member 14155761 19-Feb-19 14:31pm

There is no code, only the include file which contains #include <python.h>. The c file just contains #include <include.h>

Richard MacCutchan 19-Feb-19 16:55pm

That makes no sense at all. You must have some code in your C source file.

Member 14155761 20-Feb-19 11:47am

Only include statements, i was copying this example (but using VS 2017 instead of VS 2010)

Writing a C++ extension for Python 2.7 with Visual Studio - YouTube[^]

RickZeeland 20-Feb-19 13:42pm

Apparently this worked in VS2010, but not any more in VS2017 ...

I started the simplest of C projects in visual studio and it fails

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I started the simplest of C projects in visual studio and it fails

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