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gh-96463: fix load_tzdata raising OSError, not `ZoneInfoNotFound… #99602

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gh-96463: fix load_tzdata raising OSError, not `ZoneInfoNotFound… #99602

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gh-96463: fix `load_tzdata` raising `OSError`, not `ZoneInfoNotFound…
sobolevn Nov 19, 2022
22be349
Testing
sobolevn Nov 20, 2022
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gh-96463: fix load_tzdata raising OSError, not `ZoneInfoNotFoundE… 
…rror`
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@sobolevn
sobolevn committed Nov 19, 2022
commit 95dcf3ed0b5f89161a513fdaf4642fb6e9c4360a
1 change: 1 addition & 0 deletions Lib/test/test_zoneinfo/test_zoneinfo.py
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Expand Up @@ -220,6 +220,7 @@ def test_bad_keys(self):
"America.Los_Angeles",
"🇨🇦", # Non-ascii
"America/New\ud800York", # Contains surrogate character
"a" * 256, # Too long
]

for bad_key in bad_keys:
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4 changes: 3 additions & 1 deletion Lib/zoneinfo/_common.py
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Expand Up @@ -10,7 +10,7 @@ def load_tzdata(key):

try:
return resources.files(package_name).joinpath(resource_name).open("rb")
except (ImportError, FileNotFoundError, UnicodeEncodeError):
except (ImportError, FileNotFoundError, UnicodeEncodeError): # TODO
# There are three types of exception that can be raised that all amount
# to "we cannot find this key":
#
Expand All @@ -21,6 +21,8 @@ def load_tzdata(key):
# (e.g. Europe/Krasnoy)
# UnicodeEncodeError: If package_name or resource_name are not UTF-8,
# such as keys containing a surrogate character.
# OSError: If filename is wrong (too long, has invalid ascii symbols)
# or when there's a permissing error.
raise ZoneInfoNotFoundError(f"No time zone found with key {key}")


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2 changes: 2 additions & 0 deletions Misc/NEWS.d/next/Library/2022-11-19-21-55-06.gh-issue-96463.N6Woyx.rst
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@@ -0,0 +1,2 @@
Fix :class:`zoneinfo.ZoneInfo` raising :exc:`OSError` instead of
``ZoneInfoNotFoundError``.