gh-154746: Update doc string for `collections.Counter` by brass75 · Pull Request #154792 · python/cpython

brass75 · 2026-07-28T00:38:53Z

Added a note to collections.Counter's doc string that initializing a Counter from a Mapping or Counter will have different behaviour than initializing from other Iterables.

This behaviour is already documented in the docs but is missing from the help() output.

Issue: Issues with collections.Counter #154746

Added a note that initializing a `Counter` from a `Mapping` or `Counter` will have different behaviour than initializing from other `Iterable`s.

Updated the wording as it had been unclear.

ZeroIntensity

LGTM

ZeroIntensity · 2026-07-28T01:11:26Z

I'm going to merge this on the basis that it's already in the canonical RST docs. If someone (primarily Raymond) strongly disagrees about documenting this, feel free to send a revert and tag me for a review.

miss-islington-app · 2026-07-28T01:41:21Z

Thanks @brass75 for the PR, and @ZeroIntensity for merging it 🌮🎉.. I'm working now to backport this PR to: 3.13, 3.14, 3.15.
🐍🍒⛏🤖

bedevere-app · 2026-07-28T01:41:46Z

GH-154793 is a backport of this pull request to the 3.15 branch.

bedevere-app · 2026-07-28T01:41:54Z

GH-154794 is a backport of this pull request to the 3.14 branch.

bedevere-app · 2026-07-28T01:41:58Z

GH-154795 is a backport of this pull request to the 3.13 branch.

bedevere-bot · 2026-07-28T02:02:00Z

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot s390x Fedora Stable Clang Installed 3.x (tier-3) has failed when building commit 22a123f.

What do you need to do:

Don't panic.
Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
Go to the page of the buildbot that failed (https://buildbot.python.org/#/builders/1645/builds/3123) and take a look at the build logs.
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Turn off this advice by setting config variable advice.detachedHead to false

HEAD is now at 22a123f1305bf gh-154746: Update docstring for `collections.Counter` (GH-154792)
Switched to and reset branch 'main'

configure: WARNING: s390x-ibm-linux-gnu/clang is not supported
configure: WARNING:

Platform "s390x-ibm-linux-gnu" with compiler "clang" is not supported by the
CPython core team, see https://peps.python.org/pep-0011/ for more information.


Objects/unicodeobject.c:4906:1: warning: unused function 'ctz' [-Wunused-function]
 4906 | ctz(size_t v)
      | ^~~
1 warning generated.
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:283:5: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  283 |     CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
      |     ^
./Modules/expat/xmltok_impl.c:116:5: note: expanded from macro 'CHECK_NMSTRT_CASES'
  116 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:290:7: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  290 |       CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
      |       ^
./Modules/expat/xmltok_impl.c:87:5: note: expanded from macro 'CHECK_NAME_CASES'
   87 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:436:5: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  436 |     CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
      |     ^
./Modules/expat/xmltok_impl.c:116:5: note: expanded from macro 'CHECK_NMSTRT_CASES'
  116 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:443:7: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  443 |       CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
      |       ^
./Modules/expat/xmltok_impl.c:87:5: note: expanded from macro 'CHECK_NAME_CASES'
   87 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:549:5: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  549 |     CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
      |     ^
./Modules/expat/xmltok_impl.c:116:5: note: expanded from macro 'CHECK_NMSTRT_CASES'
  116 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:558:7: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  558 |       CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
      |       ^
./Modules/expat/xmltok_impl.c:87:5: note: expanded from macro 'CHECK_NAME_CASES'
   87 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:580:7: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  580 |       CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
      |       ^
./Modules/expat/xmltok_impl.c:87:5: note: expanded from macro 'CHECK_NAME_CASES'
   87 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:591:9: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  591 |         CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
      |         ^
./Modules/expat/xmltok_impl.c:116:5: note: expanded from macro 'CHECK_NMSTRT_CASES'
  116 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:688:11: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  688 |           CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
      |           ^
./Modules/expat/xmltok_impl.c:116:5: note: expanded from macro 'CHECK_NMSTRT_CASES'
  116 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:733:5: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  733 |     CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
      |     ^
./Modules/expat/xmltok_impl.c:116:5: note: expanded from macro 'CHECK_NMSTRT_CASES'
  116 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:759:7: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  759 |       CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
      |       ^
./Modules/expat/xmltok_impl.c:87:5: note: expanded from macro 'CHECK_NAME_CASES'
   87 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:770:9: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  770 |         CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
      |         ^
./Modules/expat/xmltok_impl.c:116:5: note: expanded from macro 'CHECK_NMSTRT_CASES'
  116 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:783:11: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  783 |           CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
      |           ^
./Modules/expat/xmltok_impl.c:116:5: note: expanded from macro 'CHECK_NMSTRT_CASES'
  116 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:928:5: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  928 |     CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
      |     ^
./Modules/expat/xmltok_impl.c:116:5: note: expanded from macro 'CHECK_NMSTRT_CASES'
  116 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:941:7: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  941 |       CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
      |       ^
./Modules/expat/xmltok_impl.c:87:5: note: expanded from macro 'CHECK_NAME_CASES'
   87 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:958:5: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  958 |     CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
      |     ^
./Modules/expat/xmltok_impl.c:116:5: note: expanded from macro 'CHECK_NMSTRT_CASES'
  116 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:965:7: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  965 |       CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
      |       ^
./Modules/expat/xmltok_impl.c:87:5: note: expanded from macro 'CHECK_NAME_CASES'
   87 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:1200:7: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
 1200 |       CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
      |       ^
./Modules/expat/xmltok_impl.c:87:5: note: expanded from macro 'CHECK_NAME_CASES'
   87 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:1220:11: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
 1220 |           CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
      |           ^
./Modules/expat/xmltok_impl.c:87:5: note: expanded from macro 'CHECK_NAME_CASES'
   87 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
19 warnings generated.

make: [Makefile:2952: libinstall] Error 1 (ignored)
ln: failed to create symbolic link 'python3': No space left on device
make: *** [Makefile:2661: bininstall] Error 1

bedevere-bot · 2026-07-28T02:03:53Z

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot s390x Fedora Stable LTO + PGO 3.x (tier-3) has failed when building commit 22a123f.

What do you need to do:

Don't panic.
Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
Go to the page of the buildbot that failed (https://buildbot.python.org/#/builders/1627/builds/3109) and take a look at the build logs.
Check if the failure is related to this commit (22a123f) or if it is a false positive.
If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

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Summary of the results of the build (if available):

Click to see traceback logs

Note: switching to '22a123f1305bf45d5d35441e9164fb4528da493c'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by switching back to a branch.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -c with the switch command. Example:

  git switch -c <new-branch-name>

Or undo this operation with:

  git switch -

Turn off this advice by setting config variable advice.detachedHead to false

HEAD is now at 22a123f1305bf gh-154746: Update docstring for `collections.Counter` (GH-154792)
Switched to and reset branch 'main'

find: ‘build’: No such file or directory
find: ‘build’: No such file or directory
find: ‘build’: No such file or directory
find: ‘build’: No such file or directory
make[2]: [Makefile:3474: clean-retain-profile] Error 1 (ignored)
./Modules/socketmodule.c: In function ‘getsockaddrarg’:
./Modules/socketmodule.c:2656:9: warning: ‘strncpy’ specified bound 64 equals destination size [-Wstringop-truncation]
 2656 |         strncpy((char *)sa->salg_name, name, sizeof(sa->salg_name));
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/bin/ld.bfd: final link failed: No space left on device
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile:3772: Modules/unicodedata.cpython-316-s390x-linux-gnu.so] Error 1
make[2]: *** Waiting for unfinished jobs....
/usr/bin/ld.bfd: final link failed: No space left on device
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile:3815: Modules/_sqlite3.cpython-316-s390x-linux-gnu.so] Error 1
/usr/bin/ld.bfd: final link failed: No space left on device
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile:3803: Modules/_curses.cpython-316-s390x-linux-gnu.so] Error 1
/usr/bin/ld.bfd: final link failed: No space left on device
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile:3801: Modules/_ctypes.cpython-316-s390x-linux-gnu.so] Error 1
Assembler messages:
Fatal error: can't create Modules/_ctypes/_ctypes_test.o: No space left on device
make[2]: *** [Makefile:3922: Modules/_ctypes/_ctypes_test.o] Error 1
make[1]: *** [Makefile:996: profile-gen-stamp] Error 2
make: *** [Makefile:1008: profile-run-stamp] Error 2

bedevere-bot · 2026-07-28T02:04:55Z

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot s390x Fedora Stable LTO 3.x (tier-3) has failed when building commit 22a123f.

What do you need to do:

Don't panic.
Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
Go to the page of the buildbot that failed (https://buildbot.python.org/#/builders/1654/builds/3086) and take a look at the build logs.
Check if the failure is related to this commit (22a123f) or if it is a false positive.
If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

https://buildbot.python.org/#/builders/1654/builds/3086

Summary of the results of the build (if available):

Click to see traceback logs

Note: switching to '22a123f1305bf45d5d35441e9164fb4528da493c'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by switching back to a branch.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -c with the switch command. Example:

  git switch -c <new-branch-name>

Or undo this operation with:

  git switch -

Turn off this advice by setting config variable advice.detachedHead to false

HEAD is now at 22a123f1305bf gh-154746: Update docstring for `collections.Counter` (GH-154792)
Switched to and reset branch 'main'

/tmp/ccUJpBib.s: Assembler messages:
/tmp/ccUJpBib.s: Fatal error: Modules/_sre/sre.o: No space left on device
/tmp/ccQTOTlR.s: Assembler messages:
/tmp/ccQTOTlR.s: Fatal error: can't write 5 bytes to section .debug_loclists of Modules/_remote_debugging/binary_io_reader.o: 'No space left on device'
/tmp/ccanFMGc.s: Assembler messages:
/tmp/ccanFMGc.s: Fatal error: can't write 3952 bytes to section .gnu.debuglto_.debug_info of Modules/_remote_debugging/asyncio.o: 'No space left on device'
/tmp/ccjVVJ48.s: Assembler messages:
/tmp/ccjVVJ48.s: Fatal error: can't write 3949 bytes to section .gnu.debuglto_.debug_info of Modules/_remote_debugging/interpreters.o: 'No space left on device'
/tmp/ccQTOTlR.s: Fatal error: Modules/_remote_debugging/binary_io_reader.o: No such file or directory
make: *** [Makefile:3962: Modules/_sre/sre.o] Error 1
make: *** Waiting for unfinished jobs....
make: *** [Makefile:3700: Modules/_remote_debugging/binary_io_reader.o] Error 1
/tmp/ccMzDin7.s: Assembler messages:
/tmp/ccMzDin7.s: Fatal error: Modules/_pickle.o: No space left on device
make: *** [Makefile:3685: Modules/_pickle.o] Error 1
make: *** [Makefile:3702: Modules/_remote_debugging/interpreters.o] Error 1
make: *** [Makefile:3698: Modules/_remote_debugging/asyncio.o] Error 1
/tmp/ccXDjv9G.s: Assembler messages:
/tmp/ccXDjv9G.s: Fatal error: can't write 3951 bytes to section .gnu.lto_asciilib_rsplit.140.12477fa8a36d7f4a of Objects/unicodeobject.o: 'No space left on device'
/tmp/ccXDjv9G.s: Fatal error: Objects/unicodeobject.o: No such file or directory
make: *** [Makefile:3380: Objects/unicodeobject.o] Error 1

find: ‘build’: No such file or directory
find: ‘build’: No such file or directory
find: ‘build’: No such file or directory
find: ‘build’: No such file or directory
make: [Makefile:3474: clean-retain-profile] Error 1 (ignored)

brass75 · 2026-07-28T02:14:00Z

@ZeroIntensity I don't think there's anything I can do about:

ln: failed to create symbolic link 'python3': No space left on device

ZeroIntensity · 2026-07-28T02:29:41Z

Yeah, not your fault. We've been discussing this internally today. It should hopefully be resolved soon.

…) (GH-154793) Added a note to `collections.Counter`'s docstring that initializing a `Counter` from a `Mapping` or `Counter` will have different behaviour than initializing from other `Iterable`s. This behaviour was already documented in the canonical docs but is missing from the help() output. (cherry picked from commit 22a123f) Co-authored-by: Dan Shernicoff <dan@brassnet.biz>

…) (GH-154794) Added a note to `collections.Counter`'s docstring that initializing a `Counter` from a `Mapping` or `Counter` will have different behaviour than initializing from other `Iterable`s. This behaviour was already documented in the canonical docs but is missing from the help() output. (cherry picked from commit 22a123f) Co-authored-by: Dan Shernicoff <dan@brassnet.biz>

…) (GH-154795) Added a note to `collections.Counter`'s docstring that initializing a `Counter` from a `Mapping` or `Counter` will have different behaviour than initializing from other `Iterable`s. This behaviour was already documented in the canonical docs but is missing from the help() output. (cherry picked from commit 22a123f) Co-authored-by: Dan Shernicoff <dan@brassnet.biz>

bedevere-bot · 2026-07-28T02:32:32Z

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot s390x Fedora Stable 3.15 (tier-3) has failed when building commit 5cc8361.

What do you need to do:

Don't panic.
Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
Go to the page of the buildbot that failed (https://buildbot.python.org/#/builders/2016/builds/296) and take a look at the build logs.
Check if the failure is related to this commit (5cc8361) or if it is a false positive.
If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

https://buildbot.python.org/#/builders/2016/builds/296

Summary of the results of the build (if available):

Click to see traceback logs

Note: switching to '5cc8361e4baa3df705f8a811eeaeaa03e4f15b83'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by switching back to a branch.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -c with the switch command. Example:

  git switch -c <new-branch-name>

Or undo this operation with:

  git switch -

Turn off this advice by setting config variable advice.detachedHead to false

HEAD is now at 5cc8361e4baa3 [3.15] gh-154746: Update docstring for `collections.Counter` (GH-154792) (GH-154793)
Switched to and reset branch '3.15'

/tmp/ccnIMYv9.s: Assembler messages:
/tmp/ccnIMYv9.s: Fatal error: Python/_warnings.o: No space left on device
make: *** [Makefile:3428: Python/_warnings.o] Error 1
make: *** Waiting for unfinished jobs....
Assembler messages:
Fatal error: can't create Python/ast_preprocess.o: No space left on device
make: *** [Makefile:3428: Python/ast_preprocess.o] Error 1
/tmp/cc2xrUNf.s: Assembler messages:
/tmp/cc2xrUNf.s: Fatal error: can't write 208 bytes to section .text of Objects/obmalloc.o: 'No space left on device'
/tmp/cc2xrUNf.s: Fatal error: Objects/obmalloc.o: No such file or directory
make: *** [Makefile:3428: Objects/obmalloc.o] Error 1
Assembler messages:
Fatal error: can't create Objects/typeobject.o: No space left on device
make: *** [Makefile:3428: Objects/typeobject.o] Error 1
Assembler messages:
Fatal error: can't create Parser/parser.o: No space left on device
make: *** [Makefile:3428: Parser/parser.o] Error 1
Assembler messages:
Fatal error: can't create Python/Python-ast.o: No space left on device
make: *** [Makefile:3428: Python/Python-ast.o] Error 1
Assembler messages:
Fatal error: can't create Objects/unicodeobject.o: No space left on device
make: *** [Makefile:3428: Objects/unicodeobject.o] Error 1

find: ‘build’: No such file or directory
find: ‘build’: No such file or directory
find: ‘build’: No such file or directory
find: ‘build’: No such file or directory
make: [Makefile:3522: clean-retain-profile] Error 1 (ignored)

bedevere-bot · 2026-07-28T05:01:17Z

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot PPC64LE Fedora Stable Clang 3.15 (tier-3) has failed when building commit 5cc8361.

What do you need to do:

Don't panic.
Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
Go to the page of the buildbot that failed (https://buildbot.python.org/#/builders/2085/builds/147) and take a look at the build logs.
Check if the failure is related to this commit (5cc8361) or if it is a false positive.
If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

https://buildbot.python.org/#/builders/2085/builds/147

Summary of the results of the build (if available):

Click to see traceback logs

Note: switching to '5cc8361e4baa3df705f8a811eeaeaa03e4f15b83'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by switching back to a branch.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -c with the switch command. Example:

  git switch -c <new-branch-name>

Or undo this operation with:

  git switch -

Turn off this advice by setting config variable advice.detachedHead to false

HEAD is now at 5cc8361e4baa [3.15] gh-154746: Update docstring for `collections.Counter` (GH-154792) (GH-154793)
Switched to and reset branch '3.15'

/usr/bin/ld.bfd: final link failed: No space left on device
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [Makefile:1977: Programs/_freeze_module] Error 1
make: *** Waiting for unfinished jobs....

bedevere-bot · 2026-07-28T05:05:51Z

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot PPC64LE Fedora Stable Clang Installed 3.15 (tier-3) has failed when building commit 5cc8361.

What do you need to do:

Don't panic.
Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
Go to the page of the buildbot that failed (https://buildbot.python.org/#/builders/2092/builds/141) and take a look at the build logs.
Check if the failure is related to this commit (5cc8361) or if it is a false positive.
If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

https://buildbot.python.org/#/builders/2092/builds/141

Summary of the results of the build (if available):

Click to see traceback logs

fatal: write error: No space left on device
fatal: fetch-pack: invalid index-pack output
rror: cannot open '.git/FETCH_HEAD': No space left on device
Cloning into '.'...
remote: Enumerating objects: 833793        
remote: Enumerating objects: 833944, done.        
remote: Counting objects:   0% (1/151)        
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remote: Counting objects:  77% (117/151)        
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remote: Counting objects:  97% (147/151)        
remote: Counting objects:  98% (148/151)        
remote: Counting objects:  99% (150/151)        
remote: Counting objects: 100% (151/151)        
remote: Counting objects: 100% (151/151), done.        
remote: Compressing objects:   0% (1/117)        
remote: Compressing objects:   1% (2/117)        
remote: Compressing objects:   2% (3/117)        
remote: Compressing objects:   3% (4/117)        
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remote: Compressing objects:  99% (116/117)        
remote: Compressing objects: 100% (117/117)        
remote: Compressing objects: 100% (117/117), done.        
Receiving objects:   0% (1/833944)
Receiving objects:   1% (8340/833944), 7.87 MiB | 15.61 MiB/s
Receiving objects:   2% (16679/833944), 7.87 MiB | 15.61 MiB/s
Receiving objects:   2% (20065/833944), 7.87 MiB | 15.61 MiB/s
Receiving objects:   3% (25019/833944), 16.95 MiB | 16.79 MiB/s
Receiving objects:   4% (33358/833944), 25.33 MiB | 16.78 MiB/s
Receiving objects:   5% (41698/833944), 25.33 MiB | 16.78 MiB/s
Receiving objects:   5% (43446/833944), 25.33 MiB | 16.78 MiB/s
Receiving objects:   6% (50037/833944), 33.70 MiB | 16.75 MiB/s
Receiving objects:   7% (58377/833944), 41.58 MiB | 16.52 MiB/s
Receiving objects:   8% (66716/833944), 41.58 MiB | 16.52 MiB/s
Receiving objects:   8% (72734/833944), 41.58 MiB | 16.52 MiB/s
Receiving objects:   9% (75055/833944), 47.45 MiB | 15.71 MiB/s
Receiving objects:  10% (83395/833944), 47.45 MiB | 15.71 MiB/s
Receiving objects:  11% (91734/833944), 47.45 MiB | 15.71 MiB/s
Receiving objects:  12% (100074/833944), 51.70 MiB | 14.67 MiB/s
Receiving objects:  13% (108413/833944), 51.70 MiB | 14.67 MiB/s
Receiving objects:  13% (110298/833944), 51.70 MiB | 14.67 MiB/s
Receiving objects:  14% (116753/833944), 56.45 MiB | 14.00 MiB/s
Receiving objects:  15% (125092/833944), 56.45 MiB | 14.00 MiB/s
Receiving objects:  16% (133432/833944), 62.08 MiB | 13.70 MiB/s
Receiving objects:  17% (141771/833944), 62.08 MiB | 13.70 MiB/s
Receiving objects:  17% (146479/833944), 62.08 MiB | 13.70 MiB/s
Receiving objects:  18% (150110/833944), 67.17 MiB | 13.09 MiB/s
Receiving objects:  19% (158450/833944), 67.17 MiB | 13.09 MiB/s
Receiving objects:  20% (166789/833944), 72.56 MiB | 12.27 MiB/s
Receiving objects:  21% (175129/833944), 72.56 MiB | 12.27 MiB/s
Receiving objects:  22% (183468/833944), 72.56 MiB | 12.27 MiB/s
Receiving objects:  22% (183774/833944), 72.56 MiB | 12.27 MiB/s
Receiving objects:  23% (191808/833944), 78.40 MiB | 11.71 MiB/s
Receiving objects:  24% (200147/833944), 78.40 MiB | 11.71 MiB/s
Receiving objects:  25% (208486/833944), 78.40 MiB | 11.71 MiB/s
Receiving objects:  26% (216826/833944), 84.59 MiB | 11.23 MiB/s
Receiving objects:  27% (225165/833944), 84.59 MiB | 11.23 MiB/s
Receiving objects:  28% (233505/833944), 84.59 MiB | 11.23 MiB/s
Receiving objects:  28% (234088/833944), 84.59 MiB | 11.23 MiB/s
Receiving objects:  29% (241844/833944), 91.11 MiB | 10.95 MiB/s
Receiving objects:  30% (250184/833944), 91.11 MiB | 10.95 MiB/s
Receiving objects:  31% (258523/833944), 91.11 MiB | 10.95 MiB/s
Receiving objects:  32% (266863/833944), 98.10 MiB | 11.20 MiB/s
Receiving objects:  33% (275202/833944), 98.10 MiB | 11.20 MiB/s
Receiving objects:  34% (283541/833944), 98.10 MiB | 11.20 MiB/s
Receiving objects:  34% (291501/833944), 98.10 MiB | 11.20 MiB/s
Receiving objects:  35% (291881/833944), 98.10 MiB | 11.20 MiB/s
Receiving objects:  36% (300220/833944), 105.52 MiB | 11.91 MiB/s
Receiving objects:  37% (308560/833944), 105.52 MiB | 11.91 MiB/s
Receiving objects:  38% (316899/833944), 105.52 MiB | 11.91 MiB/s
Receiving objects:  39% (325239/833944), 105.52 MiB | 11.91 MiB/s
Receiving objects:  40% (333578/833944), 105.52 MiB | 11.91 MiB/s
Receiving objects:  41% (341918/833944), 113.32 MiB | 12.61 MiB/s
Receiving objects:  42% (350257/833944), 113.32 MiB | 12.61 MiB/s
Receiving objects:  43% (358596/833944), 113.32 MiB | 12.61 MiB/s
Receiving objects:  44% (366936/833944), 113.32 MiB | 12.61 MiB/s
Receiving objects:  44% (374704/833944), 113.32 MiB | 12.61 MiB/s
Receiving objects:  45% (375275/833944), 113.32 MiB | 12.61 MiB/s
Receiving objects:  46% (383615/833944), 121.59 MiB | 13.20 MiB/s
Receiving objects:  47% (391954/833944), 121.59 MiB | 13.20 MiB/s
Receiving objects:  48% (400294/833944), 121.59 MiB | 13.20 MiB/s
Receiving objects:  49% (408633/833944), 121.59 MiB | 13.20 MiB/s
Receiving objects:  50% (416972/833944), 121.59 MiB | 13.20 MiB/s
Receiving objects:  51% (425312/833944), 130.13 MiB | 13.97 MiB/s
Receiving objects:  52% (433651/833944), 130.13 MiB | 13.97 MiB/s
Receiving objects:  53% (441991/833944), 130.13 MiB | 13.97 MiB/s
Receiving objects:  53% (450245/833944), 130.13 MiB | 13.97 MiB/s
Receiving objects:  54% (450330/833944), 130.13 MiB | 13.97 MiB/s
Receiving objects:  55% (458670/833944), 130.13 MiB | 13.97 MiB/s
Receiving objects:  56% (467009/833944), 139.10 MiB | 14.78 MiB/s
Receiving objects:  57% (475349/833944), 139.10 MiB | 14.78 MiB/s
Receiving objects:  58% (483688/833944), 139.10 MiB | 14.78 MiB/s
Receiving objects:  59% (492027/833944), 139.10 MiB | 14.78 MiB/s
Receiving objects:  60% (500367/833944), 139.10 MiB | 14.78 MiB/s
Receiving objects:  61% (508706/833944), 139.10 MiB | 14.78 MiB/s
Receiving objects:  62% (517046/833944), 139.10 MiB | 14.78 MiB/s
Receiving objects:  63% (525385/833944), 139.10 MiB | 14.78 MiB/s
Receiving objects:  64% (533725/833944), 139.10 MiB | 14.78 MiB/s
Receiving objects:  65% (542064/833944), 139.10 MiB | 14.78 MiB/s
Receiving objects:  66% (550404/833944), 139.10 MiB | 14.78 MiB/s
Receiving objects:  67% (558743/833944), 148.54 MiB | 15.59 MiB/s
Receiving objects:  68% (567082/833944), 148.54 MiB | 15.59 MiB/s
Receiving objects:  69% (575422/833944), 148.54 MiB | 15.59 MiB/s
Receiving objects:  69% (581339/833944), 148.54 MiB | 15.59 MiB/s
Receiving objects:  70% (583761/833944), 148.54 MiB | 15.59 MiB/s
Receiving objects:  71% (592101/833944), 158.36 MiB | 16.39 MiB/s
Receiving objects:  72% (600440/833944), 158.36 MiB | 16.39 MiB/s
Receiving objects:  73% (608780/833944), 158.36 MiB | 16.39 MiB/s
Receiving objects:  74% (617119/833944), 158.36 MiB | 16.39 MiB/s
Receiving objects:  75% (625458/833944), 158.36 MiB | 16.39 MiB/s
Receiving objects:  76% (633798/833944), 158.36 MiB | 16.39 MiB/s
Receiving objects:  77% (642137/833944), 158.36 MiB | 16.39 MiB/s
Receiving objects:  78% (650477/833944), 158.36 MiB | 16.39 MiB/s
Receiving objects:  79% (658816/833944), 158.36 MiB | 16.39 MiB/s
Receiving objects:  80% (667156/833944), 158.36 MiB | 16.39 MiB/s
Receiving objects:  81% (675495/833944), 158.36 MiB | 16.39 MiB/s
Receiving objects:  82% (683835/833944), 158.36 MiB | 16.39 MiB/s
Receiving objects:  83% (692174/833944), 168.65 MiB | 17.23 MiB/s
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remote: Total 833944 (delta 111), reused 37 (delta 34), pack-reused 833793 (from 3)        
Receiving objects: 100% (833944/833944), 190.27 MiB | 18.83 MiB/s
Receiving objects: 100% (833944/833944), 190.79 MiB | 15.17 MiB/s, done.
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Note: switching to '5cc8361e4baa3df705f8a811eeaeaa03e4f15b83'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by switching back to a branch.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -c with the switch command. Example:

  git switch -c <new-branch-name>

Or undo this operation with:

  git switch -

Turn off this advice by setting config variable advice.detachedHead to false

HEAD is now at 5cc8361e4b [3.15] gh-154746: Update docstring for `collections.Counter` (GH-154792) (GH-154793)

In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:283:5: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  283 |     CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
      |     ^
./Modules/expat/xmltok_impl.c:116:5: note: expanded from macro 'CHECK_NMSTRT_CASES'
  116 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:290:7: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  290 |       CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
      |       ^
./Modules/expat/xmltok_impl.c:87:5: note: expanded from macro 'CHECK_NAME_CASES'
   87 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:436:5: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  436 |     CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
      |     ^
./Modules/expat/xmltok_impl.c:116:5: note: expanded from macro 'CHECK_NMSTRT_CASES'
  116 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:443:7: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  443 |       CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
      |       ^
./Modules/expat/xmltok_impl.c:87:5: note: expanded from macro 'CHECK_NAME_CASES'
   87 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:549:5: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  549 |     CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
      |     ^
./Modules/expat/xmltok_impl.c:116:5: note: expanded from macro 'CHECK_NMSTRT_CASES'
  116 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:558:7: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  558 |       CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
      |       ^
./Modules/expat/xmltok_impl.c:87:5: note: expanded from macro 'CHECK_NAME_CASES'
   87 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:580:7: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  580 |       CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
      |       ^
./Modules/expat/xmltok_impl.c:87:5: note: expanded from macro 'CHECK_NAME_CASES'
   87 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:591:9: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  591 |         CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
      |         ^
./Modules/expat/xmltok_impl.c:116:5: note: expanded from macro 'CHECK_NMSTRT_CASES'
  116 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:688:11: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  688 |           CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
      |           ^
./Modules/expat/xmltok_impl.c:116:5: note: expanded from macro 'CHECK_NMSTRT_CASES'
  116 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:733:5: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  733 |     CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
      |     ^
./Modules/expat/xmltok_impl.c:116:5: note: expanded from macro 'CHECK_NMSTRT_CASES'
  116 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:759:7: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  759 |       CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
      |       ^
./Modules/expat/xmltok_impl.c:87:5: note: expanded from macro 'CHECK_NAME_CASES'
   87 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:770:9: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  770 |         CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
      |         ^
./Modules/expat/xmltok_impl.c:116:5: note: expanded from macro 'CHECK_NMSTRT_CASES'
  116 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:783:11: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  783 |           CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
      |           ^
./Modules/expat/xmltok_impl.c:116:5: note: expanded from macro 'CHECK_NMSTRT_CASES'
  116 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:928:5: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  928 |     CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
      |     ^
./Modules/expat/xmltok_impl.c:116:5: note: expanded from macro 'CHECK_NMSTRT_CASES'
  116 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:941:7: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  941 |       CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
      |       ^
./Modules/expat/xmltok_impl.c:87:5: note: expanded from macro 'CHECK_NAME_CASES'
   87 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:958:5: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  958 |     CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
      |     ^
./Modules/expat/xmltok_impl.c:116:5: note: expanded from macro 'CHECK_NMSTRT_CASES'
  116 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:965:7: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
  965 |       CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
      |       ^
./Modules/expat/xmltok_impl.c:87:5: note: expanded from macro 'CHECK_NAME_CASES'
   87 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:1200:7: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
 1200 |       CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
      |       ^
./Modules/expat/xmltok_impl.c:87:5: note: expanded from macro 'CHECK_NAME_CASES'
   87 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
In file included from ./Modules/expat/xmltok.c:309:
./Modules/expat/xmltok_impl.c:1220:11: warning: fallthrough annotation in unreachable code [-Wunreachable-code-fallthrough]
 1220 |           CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
      |           ^
./Modules/expat/xmltok_impl.c:87:5: note: expanded from macro 'CHECK_NAME_CASES'
   87 |     EXPAT_FALLTHROUGH;                                                         \
      |     ^
./Modules/expat/fallthrough.h:45:33: note: expanded from macro 'EXPAT_FALLTHROUGH'
   45 | #      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
      |                                 ^
19 warnings generated.

make: [Makefile:3021: libinstall] Error 1 (ignored)
ln: failed to create symbolic link 'python3': No space left on device
make: *** [Makefile:2744: bininstall] Error 1

bedevere-bot · 2026-07-28T05:08:25Z

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Hi! The buildbot PPC64LE Fedora Stable 3.14 (tier-2) has failed when building commit 556fa42.

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HEAD is now at 556fa42a8165d [3.14] gh-154746: Update docstring for `collections.Counter` (GH-154792) (GH-154794)
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/usr/bin/ld.bfd: final link failed: No space left on device
collect2: error: ld returned 1 exit status
make: *** [Makefile:1845: _bootstrap_python] Error 1

bedevere-bot · 2026-07-28T05:11:16Z

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot PPC64LE Fedora Stable Clang 3.14 (tier-3) has failed when building commit 556fa42.

What do you need to do:

Don't panic.
Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
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Summary of the results of the build (if available):

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Note: switching to '556fa42a8165dbada956c6bb406f61f63c3cf0f5'.

You are in 'detached HEAD' state. You can look around, make experimental
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Turn off this advice by setting config variable advice.detachedHead to false

HEAD is now at 556fa42a8165d [3.14] gh-154746: Update docstring for `collections.Counter` (GH-154792) (GH-154794)
Switched to and reset branch '3.14'

/usr/bin/ld.bfd: final link failed: No space left on device
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [Makefile:1845: _bootstrap_python] Error 1

Update doc string for collections.Counter

9c06689

Added a note that initializing a `Counter` from a `Mapping` or `Counter` will have different behaviour than initializing from other `Iterable`s.

brass75 requested a review from rhettinger as a code owner July 28, 2026 00:38

bedevere-app Bot mentioned this pull request Jul 28, 2026

Issues with collections.Counter #154746

Open

bedevere-app Bot added the awaiting review label Jul 28, 2026

ZeroIntensity added the skip news label Jul 28, 2026

ZeroIntensity reviewed Jul 28, 2026

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Comment thread Lib/collections/__init__.py Outdated

nedbat reviewed Jul 28, 2026

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Comment thread Lib/collections/__init__.py Outdated

Change wording to be more clear

a3dfa07

Updated the wording as it had been unclear.

ZeroIntensity approved these changes Jul 28, 2026

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bedevere-app Bot added awaiting merge and removed awaiting review labels Jul 28, 2026

ZeroIntensity added needs backport to 3.13 bugs and security fixes needs backport to 3.14 bugs and security fixes needs backport to 3.15 pre-release feature fixes, bugs and security fixes labels Jul 28, 2026

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brass75 commented Jul 28, 2026 •

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