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def statistics(self, key_type, cumulative=False):

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"""

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Group statistics by key_type. Return a sorted list of Statistic

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instances.

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"""

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grouped = self._group_by(key_type, cumulative)

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statistics = list(grouped.values())

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statistics.sort(reverse=True, key=Statistic._sort_key)

[508] Fix | Delete

return statistics

[509] Fix | Delete

[510] Fix | Delete

def compare_to(self, old_snapshot, key_type, cumulative=False):

[511] Fix | Delete

"""

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Compute the differences with an old snapshot old_snapshot. Get

[513] Fix | Delete

statistics as a sorted list of StatisticDiff instances, grouped by

[514] Fix | Delete

group_by.

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"""

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new_group = self._group_by(key_type, cumulative)

[517] Fix | Delete

old_group = old_snapshot._group_by(key_type, cumulative)

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statistics = _compare_grouped_stats(old_group, new_group)

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statistics.sort(reverse=True, key=StatisticDiff._sort_key)

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return statistics

[521] Fix | Delete

[522] Fix | Delete

[523] Fix | Delete

def take_snapshot():

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"""

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Take a snapshot of traces of memory blocks allocated by Python.

[526] Fix | Delete

"""

[527] Fix | Delete

if not is_tracing():

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raise RuntimeError("the tracemalloc module must be tracing memory "

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"allocations to take a snapshot")

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traces = _get_traces()

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traceback_limit = get_traceback_limit()

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return Snapshot(traces, traceback_limit)

[533] Fix | Delete

[534] Fix | Delete