Dear all
I found a BUG in the standard while statement, which appears both in python 2.7 and python 3.4 on my system.
It usually won't appear because I only stumbled upon it after trying to implement a nice repeat structure. Look:
```
class repeat(object):
def __init__(self, n):
self.n = n
def __bool__(self):
self.n -= 1
return self.n >= 0
__nonzero__=__bool__
a = repeat(2)
```
the meaning of the above is that bool(a) returns True 2-times, and after that always False.
Now executing
```
while a:
print('foo')
```
will in fact print 'foo' two times. HOWEVER ;-) ....
```
while repeat(2):
print('foo')
```
will go on and go on, printing 'foo' until I kill it.
Please comment, explain or recommend this further if you also think that both while statements should behave identically.
hoping for responses,
best,
Stephan