[Tutor] trying to find the python equivalent for VB6 "left", "right" and "mid"

[McLaughlin, Toby]

Hello Fabian,

What you are looking for is Python "slicing".  You can choose any subset
of a sequence with slicing.

Example:

>>> mystring = "Hello world"
>>> print mystring[0:7]
Hello w
>>> print mystring[1:9]
ello wor
>>>

Note that the offsets are different to the ones you used in VB.  I found
this strange at first.  The numbers specify where in the sequence to
make a "cut".  Here's a diagram:

Elements: [H] [e] [l] [l] [o] [ ] [w] [o] [r] [l] [d]
Indices: 0   1   2   3   4   5   6   7   8   9   10

Hope that helps,
Toby McLaughlin.

> -----Original Message-----
> From: tutor-bounces at python.org 
> [mailto:tutor-bounces at python.org] On Behalf Of Fabian von Berlepsch
> Sent: Monday, 22 November 2004 12:29 PM
> To: tutor at python.org
> Subject: [Tutor] trying to find the python equivalent for VB6 
> "left","right" and "mid"
> 
> 
> Hallo Guys,
> 
> I am almost having a nerve crisis! 
> Since 3 hours I am trying to find the python equivalent for 
> VB6 "left",
> "right" and "mid". 
> 
> Example (what I am looking for): 
> 
> >>> mystring = "Hello world"
> 
> >>> print left(mystring,7)
> 
> Hello w
> 
> - or -
> 
> >>> mystring = "Hello world"
> 
> >>> print mid(mystring,2,8)
> 
> ello wor
> 
> --------------------------
> 
> You see? 
> Thank you so much for getting me out of that mess!
> 
> Fabian
> 
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