Check if a string contains any lowercase letters

Question

The answer I found is this however I do not understand how it works. Can someone plz explain or show another method. Thank you in advance

def any_lowercase(s):
flag = False
for c in s:
flag = flag or c.islower()
return flag

print(any_lowercase('HELP')) False
print(any_lowercase('help')) True
print(any_lowercase('HeLP')) True

Answer 1

I don't get what you don't get 😉
the key is the Boolean OR in line 4
OR returns False only when both sides are False, otherwise it returns True.
that's the whole secret
I'd suggest to take a piece of paper and draw a table of variables for every step of the loop.

For a single use I'd do this:

s
print (any (c.islower() for c in s))