loops

[Duncan Booth]

Gandalf <goldnery at gmail.com> wrote:

> how can I do width python a normal for loop width tree conditions like
> for example :
> 
> for x=1;x<=100;x+x:
>     print x
> 

What you wrote would appear to be an infinite loop so I'll assume you meant 
to assign something to x each time round the loop as well. The simple 
Python translation of what I think you meant would be:

x = 1
while x <= 100:
   print x
   x += x

If you really insist on doing it with a for loop:

def doubling(start, limit):
    x = start
    while x <= limit:
        yield x
        x += x

...

for x in doubling(1, 100):
    print x