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Merged
merged 1 commit into from
Jun 21, 2020
Merged

Update flatten.py #647

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4 changes: 2 additions & 2 deletions algorithms/arrays/flatten.py
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@ def flatten(input_arr, output_arr=None):
if output_arr is None:
output_arr = []
for ele in input_arr:
if isinstance(ele, Iterable):
if not isinstance(ele, str) and isinstance(ele, Iterable):
flatten(ele, output_arr) #tail-recursion
else:
output_arr.append(ele) #produce the result
Expand All @@ -25,7 +25,7 @@ def flatten_iter(iterable):
returns generator which produces one dimensional output.
"""
for element in iterable:
if isinstance(element, Iterable):
if not isinstance(element, str) and isinstance(element, Iterable):
yield from flatten_iter(element)
else:
yield element