Adding paths to sys.path permanently, and another problem...

Brian van den Broek bvande at po-box.mcgill.ca
Fri Dec 17 02:36:32 CET 2004


Jeff Shannon said unto the world upon 2004-12-16 17:54:
> Amir Dekel wrote:
> 
>> 2. os.path.expanduser("~") always gives me "C:\\" instead of my 
>> homepath. I have tried to change my homepath in WinXP using set 
>> homepath(in command line), and alsaw using the "Environment Variables" 
>> in WinXP system properties, non helped. I really have to fix this 
>> somehow.
> 
> 
> 
> Well, according to os.path.expanduser()'s docstring, it uses the $HOME 
> environment variable to determine how to expand ~.  I don't know what's 
> standard on Windows, but I tried checking for a $HOME and found none.  
> Here's (a slightly redacted copy of) what I *do* find (Win2K):

<SNIP>

> Judging from this, I think that os.environ['USERPROFILE'] seems like it 
> may do what you want, though os.environ['APPDATA'] might be useful as 
> well.  Of course, if you're trying to get something to work 
> cross-platform, things may be more difficult -- but that's because 
> Windows doesn't normally use ~ so its use is not supported very well.  
> You may be able to create a $HOME that's equivalent to $USERPROFILE...
> 
> Jeff Shannon
> Technician/Programmer
> Credit International

Hi all,

some 'nix-world tool (probably xemacs) that I put on my WinMe box didn't 
like the lack of a HOME environment variable, either. This was easily 
solved by adding the line

SET HOME=D:\HOME

to my autoexec.bat file. (I don't know if this works in more recent 
versions of Windows, but I'd imagine so.) There to, I have added a line

SET PYTHONPATH=D:\List_Of_Dirs;D:\Use_a_semi_colon_to_sep_items_on_Win

Which puts those dirs into sys.path (at the front, I believe). I also 
used the .pth file trick because they two means differ as to where in 
the sys.path they add their entries.

Best to all,

Brian vdB




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