numpy.testing.assert_no_gc_cycles

testing.assert_no_gc_cycles(*args, **kwargs)[source]

Fail if the given callable produces any reference cycles.

If called with all arguments omitted, may be used as a context manager:

with assert_no_gc_cycles():
    do_something()

Parameters:

funccallable

The callable to test.

*argsArguments

Arguments passed to func.

**kwargsKwargs

Keyword arguments passed to func.

Returns:

Nothing. The result is deliberately discarded to ensure that all cycles

are found.