a string problem

[micklee74 at hotmail.com]

hi

if i have a some lines  like this
a ) "here is first string"
b ) "here is string2"
c ) "here is string3"

When i specify i only want to print the lines that contains "string" ie
the first line and not the others. If i use re module, how to compile
the expression to do this? I tried the re module and using simple
search() and everytime it gives me all the 3 lines that have "string"
in it, whereas i only need line 1.
If re module is not needed, how can i use string manipulation to do
this? thanks