Untitled Document

How To define and call a function in python to perform some string operations

# Comments in python is represented by # symbol.
#function definition is preceeded by keyword def
def fun_name(args):
"""doc string""" # optional doc string ,to describe about function
print args
#String can represented by single/double/triple single quotes
print '''to my ''' #this one uses triple single quotes
print "opensource" # this one uses double quotes
print 'world' # this one uses single quotes
print "GNU/Linux - Programmers Paradise"
#assignment
word="Linux"
#string manipulations
print word[0] # prints first char.'L'
print word[0:3] #prints first 3 chars
print word[3:] #prints starts from 3rd char.

return None #if nothing is returned ,use keyword None
#calling the function
fun_name("Welcome");

#What you have learned with this program?
#How to define a function along with doc_string and how to call a function with a argument
#How strings are represented in python and manipulating it.
#A Return type called None.