On Jul 14, 3:32 pm, Tim Roberts [EMAIL PROTECTED] wrote:
maestro [EMAIL PROTECTED] wrote:
why does this work? while p = while p != 0 ? 1 is True and 0 is
false in python but other numbers have no boolean value so why doesnt
it abort.
Because your statement is incorrect. Everything has a
On 14 juil, 07:32, Tim Roberts [EMAIL PROTECTED] wrote:
(snip)
Everything has a boolean value in
Python. 0, None, False, '' (empty string), [] (empty list), () (empty
tuple), and {} (empty dictionary) all have a False value. Everything else
has a True value.
Unless the author of the class
Tim Roberts wrote:
Everything has a boolean value in
Python. 0, None, False, '' (empty string), [] (empty list), () (empty
tuple), and {} (empty dictionary) all have a False value. Everything else
has a True value.
Empty set objects also evaluate as false in a boolean context.
Jeffrey
--
why does this work? while p = while p != 0 ? 1 is True and 0 is
false in python but other numbers have no boolean value so why doesnt
it abort.
p=16
p
16
while p:
print p
p -= 1
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
i can also do:
k=[]
while k:
k.pop()
maestro [EMAIL PROTECTED] wrote:
why does this work? while p = while p != 0 ? 1 is True and 0 is
false in python but other numbers have no boolean value so why doesnt
it abort.
Because your statement is incorrect. Everything has a boolean value in
Python. 0, None, False, '' (empty string), []
