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cillian64/enum_step.py

Created February 20, 2016 23:12
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enum_step
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enum_step.py
def enum_step(seq, start=0, step=1):
"""
Like the builtin enumerate(seq), but with adjustable stepping. Useful for backwards enumeration:
for idx,x in enum_step(reversed(seq), len(seq)-1, -1):
...
"""
idx = start
for x in seq:
yield (idx, x)
idx += step
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