I have the following string: "aaaabbbb"
How can I get the last four characters and store them in a string using Python?
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Like this:
>>> mystr = "abcdefghijkl"
>>> mystr[-4:]
'ijkl'
This slices the string's last 4 characters. The -4 starts the range from the string's end. A modified expression with [:-4] removes the same 4 characters from the end of the string:
>>> mystr[:-4]
'abcdefgh'
For more information on slicing see this Stack Overflow answer.
Constantinius
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10I remember it like this, -4 is short hand for (length - 4) – adnan2nd Sep 16 '18 at 15:21
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+1, this is pure gold... There I was faffing around with `len(str(p)) - str(p[len(str(reversed(str(p))).split(' ', 1))[0])], len(str(p)), 2)` to get the last *n* letters of `p` based on the first space. Useless and doesn't even work. – Benj Apr 09 '19 at 16:38
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Remember the `:`, otherwise you'll just get the 4th last character! – Alison Bennett Mar 06 '20 at 01:06
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str = "aaaaabbbb"
newstr = str[-4:]
DhruvPathak
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10Do no use built in names such as str as a variable name. Use `string` instead. – Chiel Mar 22 '21 at 15:13