Python Remove Parts of string by index

Question

I have a string

string='texttexttextblahblah",".'

and what I want to do is cut of some of the rightmost characters by indexing and assign it to string so that string will be equal to texttexttextblahblah"

I've looked around and found how to print by indexing, but not how to reassign that actual variable to be trimmed.

Answer 1

Just reassign what you printed to the variable.

>>> string='texttexttextblahblah",".'
>>> string = string[:-3]
>>> string
'texttexttextblahblah"'
>>>

Also, avoid using names of libraries or builtins (string) for variables

Unless you know exactly how many text and blah's you'll have, use .find() as Brent suggested (or .index(x), which is like find, except complains when it doesn't find x).

If you want that trailing ", just add one to the value it kicks out. (or just find the value you actually want to split at, ,)

mystr = mystr[:mystr.find('"') + 1]

Answer 2

If you need something that works like a string, but is mutable you can use a bytearray

>>> s=bytearray('texttexttextblahblah",".')
>>> s[20:]=''
>>> print s
texttexttextblahblah

bytearray has all the usual string methods