3 ms·
You just made my weekend. I've been doing Python for a while and am well acquainted with the "item in list" idiom but did not know it could be used for find. Th
by klenwell 15y ago
You just made my weekend. I've been doing Python for a while and am well acquainted with the "item in list" idiom but did not know it could be used for find. That str.find syntax has always bothered me.
Still, I had to test just to be sure:
test_cases = [
# haystack, needle, expect
('abcdefg', 'a', True),
('abcdefg', 'b', True),
('abcdefg', 'bcd', True),
('abcdefg', 'h', False),
]
for haystack,needle,expect in test_cases:
# find version
is_found = haystack.find(needle) != -1
# in version
is_in = needle in haystack
# confirm
print haystack, needle, expect, '-->', (is_found, is_in)
assert is_found == expect
assert is_found == is_in
Passed! Thanks.