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bpo-29554: Improve docs for pstat module and profile. (#88) 

Clarify that methods take a string which is interpreted as a regex,
not a regex object.

Also clarify what the old `-1`, `0`, `1` and `2` options were.
This commit is contained in:
Matthias Bussonnier 2017-02-20 21:30:00 -08:00 committed by Berker Peksag
parent 112ec38c15
commit 8fb1f6e039
2 changed files with 12 additions and 8 deletions
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7
Doc/library/profile.rst
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@ -444,9 +444,10 @@ Analysis of the profiler data is done using the :class:`~pstats.Stats` class.
significant entries. Initially, the list is taken to be the complete set
of profiled functions. Each restriction is either an integer (to select a
count of lines), or a decimal fraction between 0.0 and 1.0 inclusive (to
select a percentage of lines), or a regular expression (to pattern match
the standard name that is printed. If several restrictions are provided,
then they are applied sequentially. For example::
select a percentage of lines), or a string that will interpreted as a
regular expression (to pattern match the standard name that is printed).
If several restrictions are provided, then they are applied sequentially.
For example::
print_stats(.1, 'foo:')

13
Lib/pstats.py
View File

@ -48,11 +48,14 @@ class Stats:
printed.
The sort_stats() method now processes some additional options (i.e., in
addition to the old -1, 0, 1, or 2). It takes an arbitrary number of
quoted strings to select the sort order. For example sort_stats('time',
'name') sorts on the major key of 'internal function time', and on the
minor key of 'the name of the function'. Look at the two tables in
sort_stats() and get_sort_arg_defs(self) for more examples.
addition to the old -1, 0, 1, or 2 that are respectively interpreted as
'stdname', 'calls', 'time', and 'cumulative'). It takes an arbitrary number
of quoted strings to select the sort order.
For example sort_stats('time', 'name') sorts on the major key of 'internal
function time', and on the minor key of 'the name of the function'. Look at
the two tables in sort_stats() and get_sort_arg_defs(self) for more
examples.
All methods return self, so you can string together commands like:
Stats('foo', 'goo').strip_dirs().sort_stats('calls').\