Often you’ll have a string (str object), where you will want to modify the contents by replacing one piece of text with another. In Python, everything is an object – including strings. This includes the str object. Luckily, Python’s string module comes with a replace() method. The replace() method is part of the string module, and can be called either from a str object or from the string module alone.

Python’s string.replace() Prototype

The prototype of the string.replace() method is as follows:

Function parameters
    • s: The string to search and replace from.
    • old: The old sub-string you wish to replace.
  • new: The new sub-string you wish to put in-place of the old one.
  • maxreplace: The maximum number of times you wish to replace the sub-string.

Examples

Sring Module

This gives us the following output:

And using the string.replace() method from the str object:

Which gives us:

 

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