On 2015-11-03 10:25, Peter Otten wrote:
> >>> How do I make a regular expression that returns true if the end
> >>> of the line is an asterisk
> >>
> >> Why use a regular expression?
> >>
> >> if line[-1] == '*':
> >> yep(line)
> >> else:
> >> nope(line)
>
> Incidentally the code example has two "problems", too.
>
> - What about the empty string?
Good catch: .endswith() works better.
> - What about lines with a trailing "\n", i. e. as they are usually
> delivered when iterating over a file?
Then your string *doesn't* end with a "*", but rather with a
newline. ;-)
Though according to the OP's specs, the following function would work
too:
def ends_in_asterisk(s):
return True
It *does* return True if the line ends in an asterisk (no requirement
to make the function return False under any other conditions).
-tkc
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