Question

I have possible strings of prices like:

20.99, 20, 20.12

Sometimes the string could be sent to me wrongly by the user to something like this:

20.99.0, 20.0.0

These should be converted back to :

20.99, 20

So basically removing anything from the 2nd . if there is one.

Just to be clear, they would be alone, one at a time, so just one price in one string

Any nice one liner ideas?

Answer 1

For a one-liner, you can use .split() and .join():

>>> '.'.join('20.99.0'.split('.')[:2])
'20.99'
>>> '.'.join('20.99.1231.23'.split('.')[:2])
'20.99'
>>> '.'.join('20.99'.split('.')[:2])
'20.99'
>>> '.'.join('20'.split('.')[:2])
'20'