Python replace command

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String Methods

The most basic way to manipulate strings is through the methods that are build into them. We can perform a limited number of tasks to strings through these methods. Open up the Python interactive interpreter. Let's create a string and play around with it a bit.

>>> test = 'This is just a simple string.'

Let's take a fast detour and use the len function. It can be used to find the length of a string. I'm not sure why it's a function rather than a method, but that's a whole nother issue:

>>> len ( test )
29

All right, now let's get back to those methods I was talking about. Let's take our string and replace a word using the replace method:

>>> test = test.replace ( 'simple', 'short' )
>>> testa
'This is just a short string.'
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The replace command changes all instances of the first argument, not only the initial one.