[issue31356] Add context manager to temporarily disable GC

[Raymond Hettinger]

New submission from Raymond Hettinger:

Used like this:

    with gc_disabled():
        run_some_timing()

    with gc_disabled():
        # do_something_that_has_real_time_guarantees
        # such as a pair trade, robotic braking, etc

This would be implemented in C for atomicity and speed.  It would be roughly equivalent to:

    @contextmanager
    def gc_disabled():
        if gc.isenabled():
            gc.disable()
            yield
            gc.enable()
        else:
            yield

----------
assignee: ncoghlan
components: Interpreter Core
messages: 301407
nosy: eric.snow, gregory.p.smith, ncoghlan, rhettinger
priority: normal
severity: normal
status: open
title: Add context manager to temporarily disable GC
type: enhancement
versions: Python 3.7

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue31356>
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