Pattern Search Regular Expression

[rurpy at yahoo.com]

On Saturday, June 15, 2013 11:54:28 AM UTC-6, subhaba... at gmail.com wrote:

> Thank you for the answer. But I want to learn bit of interesting
> regular expression forms where may I? 
> No Mark, thank you for your links but they were not sufficient.

Links to the Python reference documentation are useful for people
just beginning with some aspect of Python; they are for people who
already know Python and want to look up details.  So it's no
surprise that you did not find them useful.

> I am looking for more intriguing exercises, esp use of or in
> the pattern search. 

Have you tried searching on Google for "regular expression tutorial"?
It gives a lot of results.  I've never tried any of them so I can't 
recommend any one specifically but maybe you can find something 
useful there?

There is also a Python Howto on regular expressions at
  http://docs.python.org/3/howto/regex.html

Also, maybe the book "Regular Expressions Cookbook" would
be useful?  It seems to have a lot of specific expressions
for accomplishing various tasks and seems to be online for
free at
  http://it-ebooks.info/read/920/