Can someone tell me what is the difference between while(1) and while (true) in python?
Latter causes uninitialized variable error if true variable is not defined. Python is case sensitive.
Please use True (it is capitalized) ...
# initialize count count = 0 # you could use 1 instead of True, but True is clearer while True: print(count) count += 1 # exit condition needed to stop endless loop if count > 8: break '''result ... 0 1 2 3 4 5 6 7 8 '''
ok can you tell me what does this mean :
string = ''.join(c for c in string if c.isalpha()) ?
Filter only letters from string.
The generator expression says, return a list of characters for every alphabetical character in
.join() method (applied to an empty string, and taking the generated list as it's argument) then fuses the list elements into a new string, with no separator character between them. The practical upshot of it is to filter out any character in
string that isn't a letter.
what does this mean ord(a) - 97?