perf improvements in tslibs.period #21447
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jbrockmendel
commented
Jun 12, 2018
pandas/_libs/tslibs/period.pyx
Outdated
| @@ -1058,18 +1058,20 @@ cdef class _Period(object): | |||
| return hash((self.ordinal, self.freqstr)) | |||
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| def _add_delta(self, other): | |||
| if isinstance(other, (timedelta, np.timedelta64, offsets.Tick)): | |||
| offset = frequencies.to_offset(self.freq.rule_code) | |||
| if isinstance(offset, offsets.Tick): | |||
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This along with the line above is redundant; isinstance(offset, offsets.Tick) if and only if isinstance(self.freq, offsets.Tick).
Codecov Report
@@ Coverage Diff @@
## master #21447 +/- ##
=======================================
Coverage 91.89% 91.89%
=======================================
Files 153 153
Lines 49604 49604
=======================================
Hits 45584 45584
Misses 4020 4020
Continue to review full report at Codecov.
|
gfyoung
added
Datetime
@jbrockmendel : |
jreback
requested changes
Jun 13, 2018
pandas/_libs/tslibs/period.pyx
Outdated
| if nanos % offset_nanos == 0: | ||
| ordinal = self.ordinal + (nanos // offset_nanos) | ||
| return Period(ordinal=ordinal, freq=self.freq) | ||
| msg = 'Input cannot be converted to Period(freq={0})' | ||
| raise IncompatibleFrequency(msg.format(self.freqstr)) | ||
| elif isinstance(other, offsets.DateOffset): | ||
| elif getattr(other, "_typ", None) == "dateoffset": |
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maybe should add an is_offset_object in util.pxd
|
as isn't showing much (recall it is wonky on my machine for reasons unknown) |
jreback
requested changes
Jun 14, 2018
pandas/_libs/tslibs/period.pyx
Outdated
| if nanos % offset_nanos == 0: | ||
| ordinal = self.ordinal + (nanos // offset_nanos) | ||
| return Period(ordinal=ordinal, freq=self.freq) | ||
| msg = 'Input cannot be converted to Period(freq={0})' | ||
| raise IncompatibleFrequency(msg.format(self.freqstr)) | ||
| elif isinstance(other, offsets.DateOffset): | ||
| elif getattr(other, "_typ", None) == "dateoffset": |
jreback
approved these changes
Jun 15, 2018
|
thanks! |
david-liu-brattle-1
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Jun 18, 2018
Sup3rGeo
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Oct 1, 2018
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Removes an unnecessary call to
frequencies.to_offset, one of the last few non-cython dependencies in the file.will post asv results when available.