I'm trying to isolate a substring of each string element of an array such that it is the string until the last period. For example I would want to have:
input = 'A.01.0'
output = 'A.01'
or
input = 'A.0'
output = 'A'
And I want to do this for all elements of an array.
Use some rsplit magic:
x=["123","456.678","abc.def.ghi"]
[y.rsplit(".",1)[0] for y in x]
This is one way to produce the wanted output format. You need to alter this to suit your needs.
output = input[:input.rindex('.')]
For the entire array:
arr = ['A.01.0', 'A.0']
arr = [x[:x.rindex('.')] for x in arr]
Hope that helps :-)
Something like this?
>>> i = ['A.01.0', 'A.0']
>>> [x[:x.rfind('.')] for x in i]
['A.01', 'A']
rfind returns -1 if the character is not found, so "abc"[:"abc".rfind('.')] will become "ab" and not "abc". That's why rsplit is more appropriate here.