Install TortoiseHg for mac : No module named mercurial
Question: I'm trying to install TortoiseHg for Mac following these instructions :
<https://bitbucket.org/tortoisehg/thg/wiki/developers/MacOSX#!alternative-
install-via-macports>

I'm trying to follow the instructions about the "Alternative: Install via
Homebrew" and I have an issue.

When I execute `./thg log` as in the instructions it works, TortoiseHg is
launching. However when I try to create an App from the python script, the App
is created but when I launch it it crashes.

Here is the output :

    
    
    Traceback (most recent call last):
      File "/Users/fabienhenon/Documents/thg-mac-app/dist/TortoiseHg.app/Contents/Resources/__boot__.py", line 316, in <module>
        _run()
      File "/Users/fabienhenon/Documents/thg-mac-app/dist/TortoiseHg.app/Contents/Resources/__boot__.py", line 311, in _run
        exec(compile(source, path, 'exec'), globals(), globals())
      File "/Users/fabienhenon/Documents/thg-mac-app/dist/TortoiseHg.app/Contents/Resources/main.py", line 28, in <module>
        imp.load_source("thg", SCRIPT_DIR + "/bin/thg")
      File "/Users/fabienhenon/Documents/thg-mac-app/dist/TortoiseHg.app/Contents/Resources/bin/thg", line 56, in <module>
        from mercurial import demandimport
    ImportError: No module named mercurial
    2013-01-06 12:25:17.436 TortoiseHg[406:707] TortoiseHg Error
    logout
    
    [Opération terminée]
    

When I type : `hg --version` I have the following output :

    
    
    Mercurial Distributed SCM (version 2.4.2+20130102)
    (see http://mercurial.selenic.com for more information)
    
    Copyright (C) 2005-2012 Matt Mackall and others
    This is free software; see the source for copying conditions. There is NO
    warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    

Can somebody help me with this issue ?

Thank you for your answers


Answer: I've found a solution to solve this issue.

From the error message I had, the script could not find the module named
mercurial. I'm new with Python so I had to make some researches to know how
module importation works and I found something about dynamically importing a
module using the `'sys'` module.

My solution was to edit the tortoisehg source code (the file where the error
came from) to dynamically add the path to my mercurial module to the
`'sys.path'` so that the program knows where to find the mercurial module.

Here is the code (in the 'thg' python file, line 56 (as mentioned by the
error)) :

    
    
    import sys
    sys.path.append("/Library/Python/2.7/site-packages")
    

You have to add this code just before this line :

    
    
    from mercurial import demandimport
    

And the path must correspond to the location of your mercurial folder.

