Hi,
On 26/03/16 22:12, beliavsky--- via Python-list wrote:
I can create a list that has repeated elements of another list as follows:
xx = ["a","b"]
nrep = 3
print xx
yy = []
for aa in xx:
for i in range(nrep):
yy.append(aa)
print yy
output:
['a', 'b']
['a', 'a', 'a', 'b', 'b', 'b']
Is there a one-liner to create a list with repeated elements?
yy = reduce(lambda a, b: a + b, ([i] * nrep for i in xx), [])
Or, if you want to "import operator" first, you can use 'operator.add'
instead of the lambda (but you _did_ ask for a one-liner ;)).
Out of interest, why the fascination with one-liners?
E.
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