Checking function's parameters (type, value) or not ?
ast
nomail at com.invalid
Wed Apr 6 09:07:14 EDT 2016
Hello
I would like to know if it is advised or not to test
a function's parameters before running it, e.g
for functions stored on a public library ?
Example:
def to_base(nber, base=16, use_af=True, sep=''):
assert isinstance(nber, int) and nber >= 0
assert isinstance(base, int) and base >= 2
assert isinstance(use_af, bool)
assert isinstance(sep, str) and len(sep) == 1
tbc
With these tests, you are sure that the function to_base is
well used. But it slows down the program.
Without, python interpreter may crash later in the function
or worse provide a meaningless result.
What library designers do ?
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