Syntax

• filter(function, iterable)
• itertools.ifilter(function, iterable)
• future_builtins.filter(function, iterable)
• itertools.ifilterfalse(function, iterable)
• itertools.filterfalse(function, iterable)

Parameters

• function | callable that determines the condition or None then use the identity function for filtering (positional-only)
• iterable | iterable that will be filtered (positional-only)

Remarks

In most cases a comprehension or generator expression is more readable, more powerful and more efficient than filter() or ifilter().

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