Removal of element from list while traversing causes the nextelement to be skipped

[Neil Cerutti]

Or one can put on his bellbottoms, horn-rimmed glasses, and wear a mullet:

i = 0
while i < len(a):
if a == 99:
del a
else:
i += 1

Quadratic time!! Yowch!! Back to the future:

def rocket_science(xs):
for x in xs:
if x != 99:
yield x

a[:] = list(rocket_science(a))

Heh.

<lamely>It's probably a fairly peppy quadratic operation though.</lamely>

Besides, wherever will I find plutonium or a bolt of lightning?

 

[Hrvoje Niksic]

Quadratic time!! Yowch!! Back to the future:

def rocket_science(xs):
for x in xs:
if x != 99:
yield x

a[:] = list(rocket_science(a))

I call "useless use of list"!

a[:] = rocket_science(a)

 

[cokofreedom]

Anyone else noticed that the OP has not actually replied to any of the
suggestions...

 

[William McBrine]

Anyone else noticed that the OP has not actually replied to any of the
suggestions...

Sorry. I was just fascinated at the turns it was taking. But the first
answer was fine for me:

for name in apps[:]:
etc.

Thanks all.