Simplify exception handling in is_ascii. (#9985)

We can get away with just catching UnicodeError here.

    ⋮
    +-- ValueError
    |    +-- UnicodeError
    |         +-- UnicodeDecodeError
    |         +-- UnicodeEncodeError
    |         +-- UnicodeTranslateError
    ⋮

https://docs.python.org/3/library/exceptions.html#exception-hierarchy

Signed-off-by: Dan Callahan <danc@element.io>
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Dan Callahan 2021-05-14 10:58:52 +01:00 committed by GitHub
parent 498084228b
commit bd918d874f
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2 changed files with 2 additions and 3 deletions

1
changelog.d/9985.misc Normal file
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@ -0,0 +1 @@
Simplify a few helper functions.

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@ -55,9 +55,7 @@ def random_string_with_symbols(length: int) -> str:
def is_ascii(s: bytes) -> bool:
try:
s.decode("ascii").encode("ascii")
except UnicodeDecodeError:
return False
except UnicodeEncodeError:
except UnicodeError:
return False
return True