Is there an elegant way in python to make a list of duplicate things?
For example, I want to make a list of 7 lefts, like so:
x = ['left', 'left', 'left', 'left', 'left', 'left', 'left']
other than doing something like:
x = []
for y in xrange(7):
x.append('left')
is there a way to efficiently make a list of 7 lefts? I had hoped for something like:
x = ['left' * 7], but of course that gives me ['leftleftleftleftleftleftleft'].
Thanks a lot, Alex
If you want (or simply are okay with) a list of references to the same object, list multiplication is what you want:
x = ['left'] * 7
If you need separate objects, e.g. if you're initializing a list of lists, you want a list comprehension:
x = [[] for _ in xrange(7)]
What about something like x = ['left'] * 7?
>>> list = ['left' for x in range(7)]
>>> list
>>>['left', 'left', 'left', 'left', 'left', 'left', 'left']
['left'] * 7
or
[ 'left' for _dummy in range(7) ]
Lost comprehension
['Left' for _ in range(7)]
