[python] Python: Append item to list N times

This seems like something Python would have a shortcut for. I want to append an item to a list N times, effectively doing this:

l = []
x = 0
for i in range(100):
    l.append(x)

It would seem to me that there should be an "optimized" method for that, something like:

l.append_multiple(x, 100)

Is there?

l = []
x = 0
l.extend([x]*100)

Use extend to add a list comprehension to the end.

l.extend([x for i in range(100)])

See the Python docs for more information.

Itertools repeat combined with list extend.

from itertools import repeat
l = []
l.extend(repeat(x, 100))

I had to go another route for an assignment but this is what I ended up with.

my_array += ([x] * repeated_times)

You could do this with a list comprehension

l = [x for i in range(10)];