Javascript to Python

[Sean 'Shaleh' Perry]

On 01-Mar-2002 Sam Collett wrote:
> Does anyone know of any good sites on Javascript > Python examples?
> I have a function in javascript that returns the file extension:
> 
> function FileExtension(sFilePath)
> {
>     return Right(sFilePath,sFilePath.length-sFilePath.lastIndexOf("."))
> }
> 
> so FileExtension("/path/to/file.doc") would return .doc
> I would also want to return the filename (file) and the path
> (/path/to/). How would I go about that?
> 

import os, os.path
>>> filename = '/path/to/foo.doc'
>>> os.path.splitext(filename)
('/path/to/foo', '.doc')
>>> os.path.splitext(os.path.basename(filename))
('foo', '.doc')
>>> os.path.basename(filename) 
'foo.doc'
>>> os.path.splitext(filename)
('/path/to/foo', '.doc')
>>> os.path.splitext(os.path.basename(filename))
('foo', '.doc')

os.path has a bunch of nice path related tools like abspath() and join(). 
Check out the python docs.

> What equivalents to the functions Right and Left (right side of
> string, left side of string)
> 

sorry, not quite sure what the Right side of a string is (-:

> Also is there an easier way to do number incrementing (just me being
> lazy):
> while r<5
>  print r
>  r=r+1
> 
> I have tried r++ to add 1 each time, and r-- to take away one, but
> this does not work, so is the only way r=r+1 or r=r-1 ?
> 

in python 1.5.2 and earlier the only way was r = r + 1.  In the 2.x series the
+= operator was added (I think this works in javascript too, it works in most C
like languages) r += 1.  There is equivalents for the other standard math ops.