python find second occurrence in string code example

Example 1: python replace first occurrence in string

# string replace() function perfectly solves this problem:

# string.replace(s, old, new[, maxreplace])

# Return a copy of string s with all occurrences of substring old replaced 
# by new. If the optional argument maxreplace is given, the first maxreplace 
# occurrences are replaced.

>>> u'longlongTESTstringTEST'.replace('TEST', '?', 1)
u'longlong?stringTEST'

Example 2: python find first occurrence in list

#iterate through list
for item in yourlist:
    #if item is equal to a value
    if item == 'value':
        #store the item in a variable
        yourvar = item
        #break out of loop
        break

Example 3: python find second occurrence in string

s = string.find(substring, string.find(substring) + 1)