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iaindillingham/generators.py

Created May 5, 2022 11:46
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Generators
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generators.py
import glob
import pathlib
def match_paths_1(pattern):
# not a generator function
return (pathlib.Path(path) for path in glob.iglob(pattern))
def match_paths_2(pattern):
# a generator function
for path in glob.iglob(pattern):
yield pathlib.Path(path)
def match_paths_3(pattern):
# a generator function
yield from (pathlib.Path(path) for path in glob.iglob(pattern))
my_pattern = "output/*.csv"
match_paths_1(my_pattern)
# <generator object match_paths_1.<locals>.<genexpr> at 0x1046e7f90>
match_paths_2(my_pattern)
# <generator object match_paths_2 at 0x1046e7f20>
match_paths_3(my_pattern)
# <generator object match_paths_3 at 0x103e66900>
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