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chore(deps): bump coverage from 7.6.12 to 7.8.0
Bumps coverage from 7.6.12 to 7.8.0.
Changelog
Sourced from coverage's changelog.
Version 7.8.0 — 2025-03-30
Added a new
source_dirssetting for symmetry with the existingsource_pkgssetting. It's preferable to the existingsourcesetting, because you'll get a clear error when directories don't exist. Fixesissue 1942. Thanks,Jeremy Fleischman <pull 1943_>.Fix: the PYTHONSAFEPATH environment variable new in Python 3.11 is properly supported, closing
issue 1696. Thanks,Philipp A. <pull 1700_>. This works properly except for a detail when using thecoveragecommand on Windows. There you can usepython -m coverageinstead if you need exact emulation... _issue 1696: nedbat/coveragepy#1696 .. _pull 1700: nedbat/coveragepy#1700 .. _issue 1942: nedbat/coveragepy#1942 .. _pull 1943: nedbat/coveragepy#1943
.. _changes_7-7-1:
Version 7.7.1 — 2025-03-21
- A few small tweaks to the sys.monitoring support for Python 3.14. Please test!
.. _changes_7-7-0:
Version 7.7.0 — 2025-03-16
The Coverage object has a new method, :meth:
.Coverage.branch_statsfor getting simple branch information for a module. Closesissue 1888_.The :class:
Coverage constructor<.Coverage>now has apluginsparameter for passing in plugin objects directly, thanks toAlex Gaynor <pull 1919_>_.Many constant tests in if statements are now recognized as being optimized away. For example, previously
if 13:would have been considered a branch with one path not taken. Now it is understood as always true and no coverage is missing.The experimental sys.monitoring support now works for branch coverage if you are using Python 3.14.0 alpha 6 or newer. This should reduce the overhead coverage.py imposes on your test suite. Set the environment variable
COVERAGE_CORE=sysmonto try it out.
... (truncated)
Commits
6d5ced9docs: sample HTML for 7.8.049c194fdocs: prep for 7.8.038782cbdocs: finish up source_dirs. bump to 7.8.07aea2f3feat: add newsource_dirsoption (#1943)f464155test: some simple bytecode testscf1dec0refactor: these pypy modules are available in all our versionsa876052test: a general helper for iterating over our own source files82cff3eperf: sets are better than listsa66bd61refactor: move bytecode code into bytecode.pyd64ce5fchore: bump the action-dependencies group with 3 updates (#1940)- Additional commits viewable in compare view
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Casual testing this today still shows a slowdown (amongst lots of warning messages) from 24 seconds to 37 seconds.
Interestingly enough, the new behavior will auto-default back to the ctrace approach if either configs are active:
branch = true
dynamic_context = "test_function"
Disabling both gives me a test run of ~19s, which is an improvement, but at the cost of missing branches and not having coverage contexts.
In March, the author posted about new branch coverage speeds, but requires a dev version of 3.14 and dev of coverage, so not exactly an option for now. https://nedbatchelder.com/blog/202503/faster_branch_coverage_measurement.html
What's further interesting is that there's a "fight" between the env var setting of COVERAGE_CORE=sysmon and the config file - and the config file is winning.
I'd like to understand the configurations that too slow. We need to include: the version of coverage.py, the Python version, and the coverage configuration. The best way to get the information is to add --debug=sys,config to your coverage run command.
Thanks for checking in, @nedbat !
Here's the "current, fast" method on cfc7015a3f7aea26d9737409821ec8d2c3b980da with the --debug command added.
$ make tests
...
+ python -m coverage run --debug=sys,config -m pytest --strict-markers --postgresql-host db
-- config ----------------------------------------------------
branch: True
command_line: None
concurrency: -none-
config_file: /opt/warehouse/src/pyproject.toml
config_files_attempted: /opt/warehouse/src/.coveragerc
/opt/warehouse/src/setup.cfg
/opt/warehouse/src/tox.ini
/opt/warehouse/src/pyproject.toml
config_files_read: /opt/warehouse/src/setup.cfg
/opt/warehouse/src/pyproject.toml
context: None
cover_pylib: False
data_file: .coverage
debug: sys
config
debug_file: None
disable_warnings: -none-
dynamic_context: test_function
exclude_also: -none-
exclude_list: pragma: no cover
class \w+\(Interface\):
if (typing\.)?TYPE_CHECKING:
extra_css: None
fail_under: 0.0
format: None
html_dir: htmlcov
html_skip_covered: None
html_skip_empty: None
html_title: Coverage report
ignore_errors: False
include_namespace_packages: False
json_output: coverage.json
json_pretty_print: False
json_show_contexts: False
lcov_line_checksums: False
lcov_output: coverage.lcov
parallel: True
partial_always_list: while (True|1|False|0):
if (True|1|False|0):
partial_list: #\s*(pragma|PRAGMA)[:\s]?\s*(no|NO)\s*(branch|BRANCH)
paths: {}
plugin_options: {}
plugins: -none-
precision: 0
relative_files: False
report_contexts: None
report_include: None
report_omit: None
run_include: -none-
run_omit: warehouse/migrations/*
warehouse/__main__.py
warehouse/wsgi.py
warehouse/celery.py
show_contexts: False
show_missing: False
sigterm: False
skip_covered: False
skip_empty: False
sort: None
source: warehouse
source_pkgs: -none-
timid: False
xml_output: coverage.xml
xml_package_depth: 99
-- sys -------------------------------------------------------
coverage_version: 7.6.12
coverage_module: /opt/warehouse/lib/python3.13/site-packages/coverage/__init__.py
core: SysMonitor
CTracer: available
plugins.file_tracers: -none-
plugins.configurers: -none-
plugins.context_switchers: -none-
configs_attempted: /opt/warehouse/src/.coveragerc
/opt/warehouse/src/setup.cfg
/opt/warehouse/src/tox.ini
/opt/warehouse/src/pyproject.toml
configs_read: /opt/warehouse/src/setup.cfg
/opt/warehouse/src/pyproject.toml
config_file: /opt/warehouse/src/pyproject.toml
config_contents: b'[tool.coverage.run]\nbranch = true\ndynamic_context = "test_function"\nsource = ["warehouse"]\nomit = [\n # We don\'t want to get coverage information for our migrations.\n "warehouse/migrations/*",\n\n # We don\'t want to actually cover our __main__.py file because it is hard\n # to cover and it really just acts as a tiny shim to a function.\n "warehouse/__main__.py",\n\n # Again, tiny shim code that we don\'t actually need to test and trying to\n # do so would just get in the way.\n "warehouse/wsgi.py",\n\n # And again, tiny shim code.\n "warehouse/celery.py",\n]\n# We run multiple processes in parallel, so we need to make sure that we don\'t\n# write to the same file at the same time.\nparallel = true\n\n[tool.coverage.report]\nexclude_lines = [\n "pragma: no cover",\n "class \\\\w+\\\\(Interface\\\\):",\n "if (typing\\\\.)?TYPE_CHECKING:",\n]\n\n[tool.curlylint]\ninclude = \'\\.(html|jinja|txt)$\'\n# For jinja\'s i18n extension:\ntemplate_tags = [[\'trans\', \'pluralize\', \'endtrans\']]\n\n[tool.isort]\nprofile = \'black\'\nlines_between_types = 1\ncombine_as_imports = true\nknown_first_party = [\'warehouse\', \'tests\']\n\n[tool.mypy]\npython_version = "3.12"\nwarn_unused_configs = true\nwarn_unused_ignores = true\nplugins = ["mypy_zope:plugin"]\nexclude = ["warehouse/locale/.*", "warehouse/migrations/versions.*"]\ncache_dir = "dev/.mypy_cache"\n\n[[tool.mypy.overrides]]\n# These modules do not yet have types available.\nmodule = [\n "bpython.*", # https://github.com/bpython/bpython/issues/892\n "b2sdk.*", # https://github.com/Backblaze/b2-sdk-python/issues/148\n "celery.app.backends.*",\n "celery.backends.redis.*",\n "github_reserved_names.*", # https://github.com/Julian/github-reserved-names/pull/10\n "google.cloud.*",\n "forcediphttpsadapter.*",\n "IPython.*", # has types, but only installed in dev\n "packaging_legacy.*", # https://github.com/di/packaging_legacy/pull/5\n "paginate.*",\n "paginate_sqlalchemy.*",\n "premailer.*",\n "pymacaroons.*", # https://github.com/ecordell/pymacaroons/issues/41\n "pyramid.*", # https://github.com/Pylons/pyramid/issues/2638\n "pyramid_jinja2.*",\n "pyramid_mailer.*",\n "pyramid_retry.*",\n "pyramid_rpc.*",\n "pyqrcode.*",\n "requests_aws4auth.*", # https://github.com/tedder/requests-aws4auth/issues/53\n "rfc3986.*", # https://github.com/python-hyper/rfc3986/issues/122\n "transaction.*",\n "ua_parser.*", # https://github.com/ua-parser/uap-python/issues/110\n "venusian.*",\n "whitenoise.*", # https://github.com/evansd/whitenoise/pull/410\n "zope.sqlalchemy.*",\n]\nignore_missing_imports = true\n\n[tool.pytest.ini_options]\naddopts = [\n "--disable-socket",\n "--allow-hosts=localhost,::1,stripe,redis",\n "--durations=20",\n "--numprocesses=auto",\n # Disable ddtrace for tests\n "-p no:ddtrace",\n "-p no:ddtrace.pytest_bdd",\n "-p no:ddtrace.pytest_benchmark",\n]\ncache_dir = "dev/.pytest_cache"\ntestpaths = ["tests/"]\nmarkers = [\n \'unit: Quick running unit tests which test small units of functionality.\',\n \'functional: Slower running tests which test the entire system is functioning.\',\n]\nfilterwarnings = [\n \'ignore::warehouse.utils.exceptions.DevelopmentModeWarning\',\n \'error:SELECT statement has a cartesian product:sqlalchemy.exc.SAWarning\',\n]\n\n[tool.pip-tools.compile]\n# TODO: This can be removed once it becomes the default.\n# See: https://github.com/jazzband/pip-tools/issues/989\nallow-unsafe = true\n'
data_file: /opt/warehouse/src/.coverage.2345bf4569ac.11.XRsLVojx
python: 3.13.2 (main, Apr 8 2025, 08:56:23) [GCC 12.2.0]
platform: Linux-6.13.7-orbstack-00283-g9d1400e7e9c6-aarch64-with-glibc2.36
implementation: CPython
gil_enabled: True
executable: /opt/warehouse/bin/python
def_encoding: utf-8
fs_encoding: utf-8
pid: 11
cwd: /opt/warehouse/src
path: /opt/warehouse/src
/opt/warehouse/src
/usr/local/lib/python313.zip
/usr/local/lib/python3.13
/usr/local/lib/python3.13/lib-dynload
/opt/warehouse/lib/python3.13/site-packages
environment: COVERAGE = yes
COVERAGE_CORE = sysmon
COVERAGE_PROCESS_START = /opt/warehouse/src/pyproject.toml
COVERAGE_RUN = true
HOME = /root
PYTHONPATH = /opt/warehouse/src/
PYTHONUNBUFFERED = 1
PYTHON_SHA256 = d984bcc57cd67caab26f7def42e523b1c015bbc5dc07836cf4f0b63fa159eb56
PYTHON_VERSION = 3.13.2
command_line: /opt/warehouse/lib/python3.13/site-packages/coverage/__main__.py run --debug=sys,config -m pytest --strict-markers --postgresql-host db
coverage_paths: /opt/warehouse/lib/python3.13/site-packages/coverage
stdlib_paths: /usr/local/lib/python3.13/re
/usr/local/lib/python3.13/sysconfig
/usr/local/lib/python3.13
third_party_paths: /opt/warehouse/lib/python
/root/.local/lib/python3.13/site-packages
/root/.local/bin
/opt/warehouse/bin
/opt/warehouse/lib/python3.13/site-packages
source_match: /opt/warehouse/src/warehouse
source_pkgs_match: -none-
include_match: -none-
omit_match: warehouse/migrations/*
/opt/warehouse/src/warehouse/migrations/*
warehouse/__main__.py
/opt/warehouse/src/warehouse/__main__.py
warehouse/wsgi.py
/opt/warehouse/src/warehouse/wsgi.py
warehouse/celery.py
/opt/warehouse/src/warehouse/celery.py
cover_match: /opt/warehouse/lib/python3.13/site-packages/coverage
pylib_match: -none-
third_match: /opt/warehouse/bin
/opt/warehouse/lib/python
/opt/warehouse/lib/python3.13/site-packages
/root/.local/bin
/root/.local/lib/python3.13/site-packages
source_in_third_match: -none-
sqlite3_sqlite_version: 3.40.1
sqlite3_temp_store: 0
sqlite3_compile_options: ATOMIC_INTRINSICS=1, COMPILER=gcc-12.2.0, DEFAULT_AUTOVACUUM,
DEFAULT_CACHE_SIZE=-2000, DEFAULT_FILE_FORMAT=4,
DEFAULT_JOURNAL_SIZE_LIMIT=-1, DEFAULT_MMAP_SIZE=0, DEFAULT_PAGE_SIZE=4096,
DEFAULT_PCACHE_INITSZ=20, DEFAULT_RECURSIVE_TRIGGERS,
DEFAULT_SECTOR_SIZE=4096, DEFAULT_SYNCHRONOUS=2,
DEFAULT_WAL_AUTOCHECKPOINT=1000, DEFAULT_WAL_SYNCHRONOUS=2,
DEFAULT_WORKER_THREADS=0, ENABLE_COLUMN_METADATA, ENABLE_DBSTAT_VTAB,
ENABLE_FTS3, ENABLE_FTS3_PARENTHESIS, ENABLE_FTS3_TOKENIZER, ENABLE_FTS4,
ENABLE_FTS5, ENABLE_LOAD_EXTENSION, ENABLE_MATH_FUNCTIONS,
ENABLE_PREUPDATE_HOOK, ENABLE_RTREE, ENABLE_SESSION, ENABLE_STMTVTAB,
ENABLE_UNLOCK_NOTIFY, ENABLE_UPDATE_DELETE_LIMIT, HAVE_ISNAN,
LIKE_DOESNT_MATCH_BLOBS, MALLOC_SOFT_LIMIT=1024, MAX_ATTACHED=10,
MAX_COLUMN=2000, MAX_COMPOUND_SELECT=500, MAX_DEFAULT_PAGE_SIZE=32768,
MAX_EXPR_DEPTH=1000, MAX_FUNCTION_ARG=127, MAX_LENGTH=1000000000,
MAX_LIKE_PATTERN_LENGTH=50000, MAX_MMAP_SIZE=0x7fff0000,
MAX_PAGE_COUNT=1073741823, MAX_PAGE_SIZE=65536, MAX_SCHEMA_RETRY=25,
MAX_SQL_LENGTH=1000000000, MAX_TRIGGER_DEPTH=1000,
MAX_VARIABLE_NUMBER=250000, MAX_VDBE_OP=250000000, MAX_WORKER_THREADS=8,
MUTEX_PTHREADS, OMIT_LOOKASIDE, SECURE_DELETE, SOUNDEX, SYSTEM_MALLOC,
TEMP_STORE=1, THREADSAFE=1, USE_URI
-- end -------------------------------------------------------
...
Results (21.06s):
4748 passed
...
And the same, with 7.8.0 applied:
$ make tests
...
+ python -m coverage run --debug=sys,config -m pytest --strict-markers --postgresql-host db
/opt/warehouse/lib/python3.13/site-packages/coverage/core.py:80: CoverageWarning: sys.monitoring can't measure branches in this version, using default core (no-sysmon)
warn(f"sys.monitoring {reason_no_sysmon}, using default core", slug="no-sysmon")
-- config ----------------------------------------------------
branch: True
command_line: None
concurrency: -none-
config_file: /opt/warehouse/src/pyproject.toml
config_files_attempted: /opt/warehouse/src/.coveragerc
/opt/warehouse/src/setup.cfg
/opt/warehouse/src/tox.ini
/opt/warehouse/src/pyproject.toml
config_files_read: /opt/warehouse/src/setup.cfg
/opt/warehouse/src/pyproject.toml
context: None
cover_pylib: False
data_file: .coverage
debug: sys
config
debug_file: None
disable_warnings: -none-
dynamic_context: test_function
exclude_also: -none-
exclude_list: pragma: no cover
class \w+\(Interface\):
if (typing\.)?TYPE_CHECKING:
extra_css: None
fail_under: 0.0
format: None
html_dir: htmlcov
html_skip_covered: None
html_skip_empty: None
html_title: Coverage report
ignore_errors: False
include_namespace_packages: False
json_output: coverage.json
json_pretty_print: False
json_show_contexts: False
lcov_line_checksums: False
lcov_output: coverage.lcov
parallel: True
partial_always_list: while (True|1|False|0):
if (True|1|False|0):
partial_list: #\s*(pragma|PRAGMA)[:\s]?\s*(no|NO)\s*(branch|BRANCH)
paths: {}
plugin_options: {}
plugins: -none-
precision: 0
relative_files: False
report_contexts: None
report_include: None
report_omit: None
run_include: -none-
run_omit: warehouse/migrations/*
warehouse/__main__.py
warehouse/wsgi.py
warehouse/celery.py
show_contexts: False
show_missing: False
sigterm: False
skip_covered: False
skip_empty: False
sort: None
source: warehouse
source_dirs: -none-
source_pkgs: -none-
timid: False
xml_output: coverage.xml
xml_package_depth: 99
-- sys -------------------------------------------------------
coverage_version: 7.8.0
coverage_module: /opt/warehouse/lib/python3.13/site-packages/coverage/__init__.py
core: CTracer
CTracer: available
plugins.file_tracers: -none-
plugins.configurers: -none-
plugins.context_switchers: -none-
configs_attempted: /opt/warehouse/src/.coveragerc
/opt/warehouse/src/setup.cfg
/opt/warehouse/src/tox.ini
/opt/warehouse/src/pyproject.toml
configs_read: /opt/warehouse/src/setup.cfg
/opt/warehouse/src/pyproject.toml
config_file: /opt/warehouse/src/pyproject.toml
config_contents: b'[tool.coverage.run]\nbranch = true\ndynamic_context = "test_function"\nsource = ["warehouse"]\nomit = [\n # We don\'t want to get coverage information for our migrations.\n "warehouse/migrations/*",\n\n # We don\'t want to actually cover our __main__.py file because it is hard\n # to cover and it really just acts as a tiny shim to a function.\n "warehouse/__main__.py",\n\n # Again, tiny shim code that we don\'t actually need to test and trying to\n # do so would just get in the way.\n "warehouse/wsgi.py",\n\n # And again, tiny shim code.\n "warehouse/celery.py",\n]\n# We run multiple processes in parallel, so we need to make sure that we don\'t\n# write to the same file at the same time.\nparallel = true\n\n[tool.coverage.report]\nexclude_lines = [\n "pragma: no cover",\n "class \\\\w+\\\\(Interface\\\\):",\n "if (typing\\\\.)?TYPE_CHECKING:",\n]\n\n[tool.curlylint]\ninclude = \'\\.(html|jinja|txt)$\'\n# For jinja\'s i18n extension:\ntemplate_tags = [[\'trans\', \'pluralize\', \'endtrans\']]\n\n[tool.isort]\nprofile = \'black\'\nlines_between_types = 1\ncombine_as_imports = true\nknown_first_party = [\'warehouse\', \'tests\']\n\n[tool.mypy]\npython_version = "3.12"\nwarn_unused_configs = true\nwarn_unused_ignores = true\nplugins = ["mypy_zope:plugin"]\nexclude = ["warehouse/locale/.*", "warehouse/migrations/versions.*"]\ncache_dir = "dev/.mypy_cache"\n\n[[tool.mypy.overrides]]\n# These modules do not yet have types available.\nmodule = [\n "bpython.*", # https://github.com/bpython/bpython/issues/892\n "b2sdk.*", # https://github.com/Backblaze/b2-sdk-python/issues/148\n "celery.app.backends.*",\n "celery.backends.redis.*",\n "github_reserved_names.*", # https://github.com/Julian/github-reserved-names/pull/10\n "google.cloud.*",\n "forcediphttpsadapter.*",\n "IPython.*", # has types, but only installed in dev\n "packaging_legacy.*", # https://github.com/di/packaging_legacy/pull/5\n "paginate.*",\n "paginate_sqlalchemy.*",\n "premailer.*",\n "pymacaroons.*", # https://github.com/ecordell/pymacaroons/issues/41\n "pyramid.*", # https://github.com/Pylons/pyramid/issues/2638\n "pyramid_jinja2.*",\n "pyramid_mailer.*",\n "pyramid_retry.*",\n "pyramid_rpc.*",\n "pyqrcode.*",\n "requests_aws4auth.*", # https://github.com/tedder/requests-aws4auth/issues/53\n "rfc3986.*", # https://github.com/python-hyper/rfc3986/issues/122\n "transaction.*",\n "ua_parser.*", # https://github.com/ua-parser/uap-python/issues/110\n "venusian.*",\n "whitenoise.*", # https://github.com/evansd/whitenoise/pull/410\n "zope.sqlalchemy.*",\n]\nignore_missing_imports = true\n\n[tool.pytest.ini_options]\naddopts = [\n "--disable-socket",\n "--allow-hosts=localhost,::1,stripe,redis",\n "--durations=20",\n "--numprocesses=auto",\n # Disable ddtrace for tests\n "-p no:ddtrace",\n "-p no:ddtrace.pytest_bdd",\n "-p no:ddtrace.pytest_benchmark",\n]\ncache_dir = "dev/.pytest_cache"\ntestpaths = ["tests/"]\nmarkers = [\n \'unit: Quick running unit tests which test small units of functionality.\',\n \'functional: Slower running tests which test the entire system is functioning.\',\n]\nfilterwarnings = [\n \'ignore::warehouse.utils.exceptions.DevelopmentModeWarning\',\n \'error:SELECT statement has a cartesian product:sqlalchemy.exc.SAWarning\',\n]\n\n[tool.pip-tools.compile]\n# TODO: This can be removed once it becomes the default.\n# See: https://github.com/jazzband/pip-tools/issues/989\nallow-unsafe = true\n'
data_file: /opt/warehouse/src/.coverage.28b04deb06f9.21.XddypEqx
python: 3.13.2 (main, Apr 8 2025, 08:56:23) [GCC 12.2.0]
platform: Linux-6.13.7-orbstack-00283-g9d1400e7e9c6-aarch64-with-glibc2.36
implementation: CPython
gil_enabled: True
executable: /opt/warehouse/bin/python
def_encoding: utf-8
fs_encoding: utf-8
pid: 21
cwd: /opt/warehouse/src
path: /opt/warehouse/src
/opt/warehouse/src
/usr/local/lib/python313.zip
/usr/local/lib/python3.13
/usr/local/lib/python3.13/lib-dynload
/opt/warehouse/lib/python3.13/site-packages
environment: COVERAGE = yes
COVERAGE_CORE = sysmon
COVERAGE_PROCESS_START = /opt/warehouse/src/pyproject.toml
COVERAGE_RUN = true
HOME = /root
PYTHONPATH = /opt/warehouse/src/
PYTHONUNBUFFERED = 1
PYTHON_SHA256 = d984bcc57cd67caab26f7def42e523b1c015bbc5dc07836cf4f0b63fa159eb56
PYTHON_VERSION = 3.13.2
command_line: /opt/warehouse/lib/python3.13/site-packages/coverage/__main__.py run --debug=sys,config -m pytest --strict-markers --postgresql-host db
coverage_paths: /opt/warehouse/lib/python3.13/site-packages/coverage
stdlib_paths: /usr/local/lib/python3.13
/usr/local/lib/python3.13/re
/usr/local/lib/python3.13/sysconfig
third_party_paths: /root/.local/lib/python3.13/site-packages
/opt/warehouse/lib/python3.13/site-packages
/root/.local/bin
/opt/warehouse/bin
/opt/warehouse/lib/python
source_match: /opt/warehouse/src/warehouse
source_pkgs_match: -none-
include_match: -none-
omit_match: warehouse/migrations/*
/opt/warehouse/src/warehouse/migrations/*
warehouse/__main__.py
/opt/warehouse/src/warehouse/__main__.py
warehouse/wsgi.py
/opt/warehouse/src/warehouse/wsgi.py
warehouse/celery.py
/opt/warehouse/src/warehouse/celery.py
cover_match: /opt/warehouse/lib/python3.13/site-packages/coverage
pylib_match: -none-
third_match: /opt/warehouse/bin
/opt/warehouse/lib/python
/opt/warehouse/lib/python3.13/site-packages
/root/.local/bin
/root/.local/lib/python3.13/site-packages
source_in_third_match: -none-
sqlite3_sqlite_version: 3.40.1
sqlite3_temp_store: 0
sqlite3_compile_options: ATOMIC_INTRINSICS=1, COMPILER=gcc-12.2.0, DEFAULT_AUTOVACUUM,
DEFAULT_CACHE_SIZE=-2000, DEFAULT_FILE_FORMAT=4,
DEFAULT_JOURNAL_SIZE_LIMIT=-1, DEFAULT_MMAP_SIZE=0, DEFAULT_PAGE_SIZE=4096,
DEFAULT_PCACHE_INITSZ=20, DEFAULT_RECURSIVE_TRIGGERS,
DEFAULT_SECTOR_SIZE=4096, DEFAULT_SYNCHRONOUS=2,
DEFAULT_WAL_AUTOCHECKPOINT=1000, DEFAULT_WAL_SYNCHRONOUS=2,
DEFAULT_WORKER_THREADS=0, ENABLE_COLUMN_METADATA, ENABLE_DBSTAT_VTAB,
ENABLE_FTS3, ENABLE_FTS3_PARENTHESIS, ENABLE_FTS3_TOKENIZER, ENABLE_FTS4,
ENABLE_FTS5, ENABLE_LOAD_EXTENSION, ENABLE_MATH_FUNCTIONS,
ENABLE_PREUPDATE_HOOK, ENABLE_RTREE, ENABLE_SESSION, ENABLE_STMTVTAB,
ENABLE_UNLOCK_NOTIFY, ENABLE_UPDATE_DELETE_LIMIT, HAVE_ISNAN,
LIKE_DOESNT_MATCH_BLOBS, MALLOC_SOFT_LIMIT=1024, MAX_ATTACHED=10,
MAX_COLUMN=2000, MAX_COMPOUND_SELECT=500, MAX_DEFAULT_PAGE_SIZE=32768,
MAX_EXPR_DEPTH=1000, MAX_FUNCTION_ARG=127, MAX_LENGTH=1000000000,
MAX_LIKE_PATTERN_LENGTH=50000, MAX_MMAP_SIZE=0x7fff0000,
MAX_PAGE_COUNT=1073741823, MAX_PAGE_SIZE=65536, MAX_SCHEMA_RETRY=25,
MAX_SQL_LENGTH=1000000000, MAX_TRIGGER_DEPTH=1000,
MAX_VARIABLE_NUMBER=250000, MAX_VDBE_OP=250000000, MAX_WORKER_THREADS=8,
MUTEX_PTHREADS, OMIT_LOOKASIDE, SECURE_DELETE, SOUNDEX, SYSTEM_MALLOC,
TEMP_STORE=1, THREADSAFE=1, USE_URI
-- end -------------------------------------------------------
...
Results (32.98s):
4712 passed
Do I have it right that coverage 7.6.12 is faster and 7.8.0 is slower? The thing I notice is that your 7.6.12 has core: SysMonitor in the sys output, but 7.8.0 has core: CTracer. I would expect there's a coverage warning in your test output:
sys.monitoring can't measure branches in this version, using default core
which is why the core becomes CTracer.
It surprises me that this would be slower though? The core reverts to CTracer because every evidence I had was that branches with sys.monitoring were too slow.
If you want to neuter that decision, you can try commenting out these lines: https://github.com/nedbat/coveragepy/blob/master/coverage/core.py#L79-L81:
if core_name == "sysmon" and reason_no_sysmon:
warn(f"sys.monitoring {reason_no_sysmon}, using default core", slug="no-sysmon")
core_name = None
I'll be interested to hear what you find.
coverage 7.6.12 is faster and 7.8.0 is slower
Yes, that's correct.
7.6.12 has core: SysMonitor in the sys output, but 7.8.0 has core: CTracer. I would expect there's a coverage warning in your test output
We set COVERAGE_CORE=sysmon to activate the behavior, and no such warning is emitted in 7.6.12, but these do raise during 7.8.0.
Commenting those three lines raises another error, specifically:
+ python -m coverage run -m pytest --strict-markers --postgresql-host db
ERROR: while parsing the following warning configuration:
ignore::warehouse.utils.exceptions.DevelopmentModeWarning
This error occurred:
Traceback (most recent call last):
File "/opt/warehouse/lib/python3.13/site-packages/_pytest/config/__init__.py", line 1918, in parse_warning_filter
category: type[Warning] = _resolve_warning_category(category_)
~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^
File "/opt/warehouse/lib/python3.13/site-packages/_pytest/config/__init__.py", line 1956, in _resolve_warning_category
m = __import__(module, None, None, [klass])
File "/opt/warehouse/src/warehouse/__init__.py", line 0, in <module>
# Licensed under the Apache License, Version 2.0 (the "License");
File "/opt/warehouse/lib/python3.13/site-packages/coverage/sysmon.py", line 364, in sysmon_py_start
assert env.PYBEHAVIOR.branch_right_left
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError
I thought it was something weird with the filterwarnings syntax, so I commented that out and re-ran, but the test fails at the same spot - assert env.PYBEHAVIOR.branch_right_left,
so I tried to "force" that to be truthy (setting to version 3, 13 or higher), but that failed as well with:
AttributeError: 'types.SimpleNamespace' object has no attribute 'BRANCH_RIGHT'
+ python -m coverage run -m pytest --strict-markers --postgresql-host db
Error in sitecustomize; set PYTHONVERBOSE for traceback:
AttributeError: 'types.SimpleNamespace' object has no attribute 'BRANCH_RIGHT'
Traceback (most recent call last):
File "<frozen runpy>", line 198, in _run_module_as_main
File "<frozen runpy>", line 88, in _run_code
File "/opt/warehouse/lib/python3.13/site-packages/coverage/__main__.py", line 10, in <module>
sys.exit(main())
~~~~^^
File "/opt/warehouse/lib/python3.13/site-packages/coverage/cmdline.py", line 970, in main
status = CoverageScript().command_line(argv)
File "/opt/warehouse/lib/python3.13/site-packages/coverage/cmdline.py", line 681, in command_line
return self.do_run(options, args)
~~~~~~~~~~~^^^^^^^^^^^^^^^
File "/opt/warehouse/lib/python3.13/site-packages/coverage/cmdline.py", line 855, in do_run
self.coverage.start()
~~~~~~~~~~~~~~~~~~~^^
File "/opt/warehouse/lib/python3.13/site-packages/coverage/control.py", line 680, in start
self._collector.start()
~~~~~~~~~~~~~~~~~~~~~^^
File "/opt/warehouse/lib/python3.13/site-packages/coverage/collector.py", line 331, in start
self._start_tracer()
~~~~~~~~~~~~~~~~~~^^
File "/opt/warehouse/lib/python3.13/site-packages/coverage/collector.py", line 285, in _start_tracer
fn = tracer.start()
File "/opt/warehouse/lib/python3.13/site-packages/coverage/sysmon.py", line 250, in start
sys_monitoring.use_tool_id(self.myid, "coverage.py")
~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: tool 1 is already in use
I'm not certain where to go next.
We set COVERAGE_CORE=sysmon to activate the behavior, and no such warning is emitted in 7.6.12, but these do raise during 7.8.0.
Sorry, yes, the warning is new in 7.7.0.
assert env.PYBEHAVIOR.branch_right_left
and
AttributeError: 'types.SimpleNamespace' object has no attribute 'BRANCH_RIGHT'
My bad, I forgot that the branch support code is truly requiring features that are new in 3.14:
At this point I think your best option is to stick with 7.6.12.
OK, I won't notify you about coverage again, unless you re-open this PR.