Unable to build mercurial on OSX - Python.h not found

For what I've read I need Python-Dev, how do I install it on OSX?

I think the problem I have, is, my Xcode was not properly installed, and I don't have the paths where I should.

This previous question:

Where is gcc on OSX? I have installed Xcode already

Was about I couldn't find gcc, now I can't find Python.h

Should I just link my /Devel开发者_C百科oper directory to somewhere else in /usr/ ???

This is my output:

$ sudo easy_install mercurial
Password:
Searching for mercurial
Reading http://pypi.python.org/simple/mercurial/
Reading http://www.selenic.com/mercurial
Best match: mercurial 1.5.1
Downloading http://mercurial.selenic.com/release/mercurial-1.5.1.tar.gz
Processing mercurial-1.5.1.tar.gz
Running mercurial-1.5.1/setup.py -q bdist_egg --dist-dir /tmp/easy_install-_7RaTq/mercurial-1.5.1/egg-dist-tmp-l7JP3u
mercurial/base85.c:12:20: error: Python.h: No such file or directory
...

Thanks in advance.

I was struggling with this problem all day today.

I eventually discovered a site that claimed that all one needed to do was to reinstall Xcode, or install the latest version (4.3.2, as of this writing).

So I tried that. It did not help; not on its own. But then I went a step further: I fired up Xcode.app, and once I had done that, I opened the Xcode..Preferences menu item, and then go to the Downloads tab, and say that you want to install the "Command Line Tools"

Once I did that, and then re-ran easy_install (in my case I was trying to "easy_install dulwich" to satisfy a hg-git dependency), it was able to properly find Python.h for me.

Might depend on what version of Mac OSX you have, I have it in these spots:

/Developer/SDKs/MacOSX10.5.sdk/System/Library/Frameworks/Python.framework/Versions/2.5/include/python2.5/Python.h
/System/Library/Frameworks/Python.framework/Versions/2.5/include/python2.5/Python.h

Also I believe the version of python that comes with Xcode is a custom build that plays well with xcode but you have to jump through some hoops if you use another dev environment.

Are you sure you want to build Mercurial from source? There are binary packages available, including the nice MacHg which comes with a bundled Mercurial.