Feature Requests item #1432437, was opened at 2006-02-15 13:26
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Category: Python Library
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: paul cannon (paulcannon)
Assigned to: Nobody/Anonymous (nobody)
Summary: itertools.any and itertools.all
Initial Comment:
Just a couple very simple "shortcutting" functions that
I find myself needing quite frequently.
"reduce(operator.or_, foo, False)" is all right, but
potentially does a lot more work.
def any(i):
"""Returns true if any element from i is true."""
for element in i:
if i:
return True
return False
all() would also be nice:
def all(i):
"""Returns true if all elements from i are true."""
for element in i:
if not i:
return False
return True
..although it /could/ simply be built on any() as "not
any(imap(operator.not_, i))".
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