Python.h not found - Python

When you encounter the error "regex_2_regex.c:50:10: fatal error: Python.h: No such file or directory" in your C program, it means that the compiler is not able to locate the Python.h header file needed for compiling the program.

This usually happens when you are trying to compile a C program that uses the Python.h header file, but the header file is not available in the default include paths recognized by the compiler.

To resolve this error, you need to install the Python development package which includes the Python.h header file. You can do this by using your operating system's package manager.

For example, on a Linux system that uses apt-get package manager, you can install the Python development package by running the following command:

sudo apt-get install python-dev

On a macOS system, you can install the package using Homebrew by running:

brew install python

After installing the Python development package, make sure to add the directory containing the Python.h header file to the include path of the compiler. This can be done by adding the following command to your Makefile:

CFLAGS += -I /path/to/python/include

Alternatively, you can specify the include path directly when invoking the compiler:

gcc -I/path/to/python/include myfile.c -o myfile

By following these steps, you should be able to resolve the "Python.h not found" error and successfully compile your C program that uses the Python.h header file.