replacing strings in python

Question

I want to write a python function to search a line, looking for a symbol, and if it is finds, then replace it by a value. The goal is to solve a cgi problem So, the line looks like:

<h1><font color="#CC6600">%<br></font></h1>

and I wanted to check if % is on the page and then replace it is by a word, let's say, Suffle. How could I accomplish that?

Answer 1

use str.replace():

In [24]: strs="""<h1><font color="#CC6600">%<br></font></h1>"""

In [25]: strs.replace("%","Suffle")
Out[25]: '<h1><font color="#CC6600">Suffle<br></font></h1>'

To check the presence of a substring in a string we use in:

In [26]: "%" in strs
Out[26]: True