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gh-109653: Improve import time of importlib.metadata / email.utils #114664

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merged 3 commits into from
Jan 29, 2024
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gh-109653: Improve import time of importlib.metadata / email.utils #114664

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gh-109653: Improve import time of importlib.metadata / email.utils
hauntsaninja Jan 28, 2024
94fd0d7
📜🤖 Added by blurb_it.
blurb-it[bot] Jan 28, 2024
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hauntsaninja Jan 28, 2024
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4 changes: 3 additions & 1 deletion Lib/email/_parseaddr.py
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Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,7 @@
'quote',
]

import time, calendar
import time

SPACE = ' '
EMPTYSTRING = ''
Expand Down Expand Up @@ -194,6 +194,8 @@ def mktime_tz(data):
# No zone info, so localtime is better assumption than GMT
return time.mktime(data[:8] + (-1,))
else:
import calendar

t = calendar.timegm(data)
return t - data[9]

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3 changes: 2 additions & 1 deletion Lib/importlib/metadata/__init__.py
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Original file line number Diff line number Diff line change
@@ -1,7 +1,6 @@
import os
import re
import abc
import csv
import sys
import json
import email
Expand Down Expand Up @@ -478,6 +477,8 @@ def make_file(name, hash=None, size_str=None):

@pass_none
def make_files(lines):
import csv

return starmap(make_file, csv.reader(lines))

@pass_none
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1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Library/2024-01-28-00-48-12.gh-issue-109653.vF4exe.rst
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@@ -0,0 +1 @@
Improve import time of :mod:`importlib.metadata` and :mod:`email.utils`.
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