How to compare two string with some characters only in python

2018-06-26 11:05:22

This question already has an answer here:

Compare strings in python like the sql “like” (with “%” and “_”) 2 answers

Does Python have a string 'contains' substring method? 13 answers

You could use in to check if a string is contained in an other:

'toyota innova' in 'toyota innova 7' # True
'tempo traveller' in 'tempo traveller 15 str' # True

If you only want to match the start of the string, you can use str.startswith :

'toyota innova 7'.startswith('toyota innova') # True
'tempo traveller 15 str'.startswith('tempo traveller') # True

Alternatively, if you only want to match the end of the string, you can use str.endswith

'test with a test'.endswith('with a test') # True

You can use .startswith() method.

if s2.startswith(s1):
    return True

or you may use in operator, as suggested by user312016

You may also need to check if s2 in s1 like this:

def my_cmp(s1, s2):
    return (s1 in s2) or (s2 in s1)

Output:

>>> s1 = "test1"
>>> s2 = "test1 test2"
>>>
>>> my_cmp(s1, s2)
True
>>>
>>> s3 = "test1 test2"
>>> s4 = "test1"
>>>
>>> my_cmp(s3, s4)
True

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