Question

i am trying to delete certain portion of a string if a match found in the string as below

string = 'Newyork, NY'

I want to delete all the characters after the comma from the string including comma, if comma is present in the string

Can anyone let me now how to do this .

Answer 1

Use .split():

string = string.split(',', 1)[0]

We split the string on the comma once, to save python the work of splitting on more commas.

Alternatively, you can use .partition():

string = string.partition(',')[0]

Demo:

>>> 'Newyork, NY'.split(',', 1)[0]
'Newyork'
>>> 'Newyork, NY'.partition(',')[0]
'Newyork'

.partition() is the faster method:

>>> import timeit
>>> timeit.timeit("'one, two'.split(',', 1)[0]")
0.52929401397705078
>>> timeit.timeit("'one, two'.partition(',')[0]")
0.26499605178833008