2.10.2 Hangs forever, downgrade to 2.9.6 is working

[folkvir]

Bug description

Installing last version (2.10.2) results in unexpected hangs.
Downgrading to 2.9.6 works as expected.

Configuration

[MASTER]

# A comma-separated list of package or module names from where C extensions may
# be loaded. Extensions are loading into the active Python interpreter and may
# run arbitrary code.
extension-pkg-whitelist=pycurl,setproctitle

# Specify a score threshold to be exceeded before program exits with error.
fail-under=10.0

# Add files or directories to the blacklist. They should be base names, not
# paths.
ignore=CVS

# Add files or directories matching the regex patterns to the blacklist. The
# regex matches against base names, not paths.
ignore-patterns=

# Python code to execute, usually for sys.path manipulation such as
# pygtk.require().
# init-hook='import sys; sys.path.append(".")'

# Use multiple processes to speed up Pylint. Specifying 0 will auto-detect the
# number of processors available to use.
jobs=0

# Control the amount of potential inferred values when inferring a single
# object. This can help the performance when dealing with large functions or
# complex, nested conditions.
limit-inference-results=100

# List of plugins (as comma separated values of python module names) to load,
# usually to register additional checkers.
load-plugins=

# Pickle collected data for later comparisons.
persistent=no

# When enabled, pylint would attempt to guess common misconfiguration and emit
# user-friendly hints instead of false-positive error messages.
suggestion-mode=yes

# Allow loading of arbitrary C extensions. Extensions are imported into the
# active Python interpreter and may run arbitrary code.
unsafe-load-any-extension=no

[MESSAGES CONTROL]

# Only show warnings with the listed confidence levels. Leave empty to show
# all. Valid levels: HIGH, INFERENCE, INFERENCE_FAILURE, UNDEFINED.
confidence=

# Disable the message, report, category or checker with the given id(s). You
# can either give multiple identifiers separated by comma (,) or put this
# option multiple times (only on the command line, not in the configuration
# file where it should appear only once). You can also use "--disable=all" to
# disable everything first and then reenable specific checks. For example, if
# you want to run only the similarities checker, you can use "--disable=all
# --enable=similarities". If you want to run only the classes checker, but have
# no Warning level messages displayed, use "--disable=all --enable=classes
# --disable=W".
disable=print-statement,
        parameter-unpacking,
        unpacking-in-except,
        old-raise-syntax,
        backtick,
        long-suffix,
        old-ne-operator,
        old-octal-literal,
        import-star-module-level,
        non-ascii-bytes-literal,
        raw-checker-failed,
        bad-inline-option,
        locally-disabled,
        file-ignored,
        suppressed-message,
        useless-suppression,
        deprecated-pragma,
        use-symbolic-message-instead,
        apply-builtin,
        basestring-builtin,
        buffer-builtin,
        cmp-builtin,
        coerce-builtin,
        execfile-builtin,
        file-builtin,
        long-builtin,
        raw_input-builtin,
        reduce-builtin,
        standarderror-builtin,
        unicode-builtin,
        xrange-builtin,
        coerce-method,
        delslice-method,
        getslice-method,
        setslice-method,
        no-absolute-import,
        old-division,
        dict-iter-method,
        dict-view-method,
        next-method-called,
        metaclass-assignment,
        indexing-exception,
        raising-string,
        reload-builtin,
        oct-method,
        hex-method,
        nonzero-method,
        cmp-method,
        input-builtin,
        round-builtin,
        intern-builtin,
        unichr-builtin,
        map-builtin-not-iterating,
        zip-builtin-not-iterating,
        range-builtin-not-iterating,
        filter-builtin-not-iterating,
        using-cmp-argument,
        eq-without-hash,
        div-method,
        idiv-method,
        rdiv-method,
        exception-message-attribute,
        invalid-str-codec,
        sys-max-int,
        bad-python3-import,
        deprecated-string-function,
        deprecated-str-translate-call,
        deprecated-itertools-function,
        deprecated-types-field,
        next-method-defined,
        dict-items-not-iterating,
        dict-keys-not-iterating,
        dict-values-not-iterating,
        deprecated-operator-function,
        deprecated-urllib-function,
        xreadlines-attribute,
        deprecated-sys-function,
        exception-escape,
        comprehension-escape,
        too-many-branches,
        too-many-statements,
        C0114, # file docstring
        too-few-public-methods, # useless
        missing-module-docstring # useless too

# Enable the message, report, category or checker with the given id(s). You can
# either give multiple identifier separated by comma (,) or put this option
# multiple time (only on the command line, not in the configuration file where
# it should appear only once). See also the "--disable" option for examples.
enable=c-extension-no-member

[REPORTS]

# Python expression which should return a score less than or equal to 10. You
# have access to the variables 'error', 'warning', 'refactor', and 'convention'
# which contain the number of messages in each category, as well as 'statement'
# which is the total number of statements analyzed. This score is used by the
# global evaluation report (RP0004).
evaluation=10.0 - ((float(5 * error + warning + refactor + convention) / statement) * 10)

# Template used to display messages. This is a python new-style format string
# used to format the message information. See doc for all details.
#msg-template=

# Set the output format. Available formats are text, parseable, colorized, json
# and msvs (visual studio). You can also give a reporter class, e.g.
# mypackage.mymodule.MyReporterClass.
output-format=text

# Tells whether to display a full report or only the messages.
reports=no

# Activate the evaluation score.
score=yes

[REFACTORING]

# Maximum number of nested blocks for function / method body
max-nested-blocks=10

# Complete name of functions that never returns. When checking for
# inconsistent-return-statements if a never returning function is called then
# it will be considered as an explicit return statement and no message will be
# printed.
never-returning-functions=sys.exit

[FORMAT]

# Expected format of line ending, e.g. empty (any line ending), LF or CRLF.
expected-line-ending-format=

# Regexp for a line that is allowed to be longer than the limit.
ignore-long-lines=^\s*(# )?<?https?://\S+>?$

# Number of spaces of indent required inside a hanging or continued line.
indent-after-paren=4

# String used as indentation unit. This is usually "    " (4 spaces) or "\t" (1
# tab).
indent-string='    '

# Maximum number of characters on a single line.
max-line-length=120

# Maximum number of lines in a module.
max-module-lines=1000

# Allow the body of a class to be on the same line as the declaration if body
# contains single statement.
single-line-class-stmt=no

# Allow the body of an if to be on the same line as the test if there is no
# else.
single-line-if-stmt=no

[SIMILARITIES]

# Ignore comments when computing similarities.
ignore-comments=yes

# Ignore docstrings when computing similarities.
ignore-docstrings=yes

# Ignore imports when computing similarities.
ignore-imports=yes

# Minimum lines number of a similarity.
min-similarity-lines=10

[MISCELLANEOUS]

# List of note tags to take in consideration, separated by a comma.
notes=FIXME,
      XXX,
      TODO

# Regular expression of note tags to take in consideration.
#notes-rgx=

[LOGGING]

# The type of string formatting that logging methods do. `old` means using %
# formatting, `new` is for `{}` formatting.
logging-format-style=old

# Logging modules to check that the string format arguments are in logging
# function parameter format.
logging-modules=logging

[STRING]

# This flag controls whether inconsistent-quotes generates a warning when the
# character used as a quote delimiter is used inconsistently within a module.
check-quote-consistency=no

# This flag controls whether the implicit-str-concat should generate a warning
# on implicit string concatenation in sequences defined over several lines.
check-str-concat-over-line-jumps=no

[VARIABLES]

# List of additional names supposed to be defined in builtins. Remember that
# you should avoid defining new builtins when possible.
additional-builtins=

# Tells whether unused global variables should be treated as a violation.
allow-global-unused-variables=yes

# List of strings which can identify a callback function by name. A callback
# name must start or end with one of those strings.
callbacks=cb_,
          _cb

# A regular expression matching the name of dummy variables (i.e. expected to
# not be used).
dummy-variables-rgx=_+$|(_[a-zA-Z0-9_]*[a-zA-Z0-9]+?$)|dummy|^ignored_|^unused_

# Argument names that match this expression will be ignored. Default to name
# with leading underscore.
ignored-argument-names=_.*|^ignored_|^unused_

# Tells whether we should check for unused import in __init__ files.
init-import=no

# List of qualified module names which can have objects that can redefine
# builtins.
redefining-builtins-modules=six.moves,past.builtins,future.builtins,builtins,io

[BASIC]

# Naming style matching correct argument names.
argument-naming-style=snake_case

# Regular expression matching correct argument names. Overrides argument-
# naming-style.
#argument-rgx=

# Naming style matching correct attribute names.
attr-naming-style=snake_case

# Regular expression matching correct attribute names. Overrides attr-naming-
# style.
#attr-rgx=

# Bad variable names which should always be refused, separated by a comma.
bad-names=foo,
          bar,
          baz,
          toto,
          tutu,
          tata

# Bad variable names regexes, separated by a comma. If names match any regex,
# they will always be refused
bad-names-rgxs=

# Naming style matching correct class attribute names.
class-attribute-naming-style=any

# Regular expression matching correct class attribute names. Overrides class-
# attribute-naming-style.
#class-attribute-rgx=

# Naming style matching correct class names.
class-naming-style=PascalCase

# Regular expression matching correct class names. Overrides class-naming-
# style.
#class-rgx=

# Naming style matching correct constant names.
const-naming-style=UPPER_CASE

# Regular expression matching correct constant names. Overrides const-naming-
# style.
#const-rgx=

# Minimum line length for functions/classes that require docstrings, shorter
# ones are exempt.
docstring-min-length=-1

# Naming style matching correct function names.
function-naming-style=snake_case

# Regular expression matching correct function names. Overrides function-
# naming-style.
#function-rgx=

# Good variable names which should always be accepted, separated by a comma.
good-names=i,
           j,
           k,
           ex,
           Run,
           _

# Good variable names regexes, separated by a comma. If names match any regex,
# they will always be accepted
good-names-rgxs=

# Include a hint for the correct naming format with invalid-name.
include-naming-hint=no

# Naming style matching correct inline iteration names.
inlinevar-naming-style=any

# Regular expression matching correct inline iteration names. Overrides
# inlinevar-naming-style.
#inlinevar-rgx=

# Naming style matching correct method names.
method-naming-style=snake_case

# Regular expression matching correct method names. Overrides method-naming-
# style.
#method-rgx=

# Naming style matching correct module names.
module-naming-style=snake_case

# Regular expression matching correct module names. Overrides module-naming-
# style.
#module-rgx=

# Colon-delimited sets of names that determine each other's naming style when
# the name regexes allow several styles.
name-group=

# Regular expression which should only match function or class names that do
# not require a docstring.
no-docstring-rgx=^_

# List of decorators that produce properties, such as abc.abstractproperty. Add
# to this list to register other decorators that produce valid properties.
# These decorators are taken in consideration only for invalid-name.
property-classes=abc.abstractproperty

# Naming style matching correct variable names.
variable-naming-style=snake_case

# Regular expression matching correct variable names. Overrides variable-
# naming-style.
#variable-rgx=

[SPELLING]

# Limits count of emitted suggestions for spelling mistakes.
max-spelling-suggestions=4

# Spelling dictionary name. Available dictionaries: none. To make it work,
# install the python-enchant package.
spelling-dict=

# List of comma separated words that should not be checked.
spelling-ignore-words=

# A path to a file that contains the private dictionary; one word per line.
spelling-private-dict-file=

# Tells whether to store unknown words to the private dictionary (see the
# --spelling-private-dict-file option) instead of raising a message.
spelling-store-unknown-words=no

[TYPECHECK]

# List of decorators that produce context managers, such as
# contextlib.contextmanager. Add to this list to register other decorators that
# produce valid context managers.
contextmanager-decorators=contextlib.contextmanager

# List of members which are set dynamically and missed by pylint inference
# system, and so shouldn't trigger E1101 when accessed. Python regular
# expressions are accepted.
generated-members=

# Tells whether missing members accessed in mixin class should be ignored. A
# mixin class is detected if its name ends with "mixin" (case insensitive).
ignore-mixin-members=yes

# Tells whether to warn about missing members when the owner of the attribute
# is inferred to be None.
ignore-none=yes

# This flag controls whether pylint should warn about no-member and similar
# checks whenever an opaque object is returned when inferring. The inference
# can return multiple potential results while evaluating a Python object, but
# some branches might not be evaluated, which results in partial inference. In
# that case, it might be useful to still emit no-member and other checks for
# the rest of the inferred objects.
ignore-on-opaque-inference=yes

# List of class names for which member attributes should not be checked (useful
# for classes with dynamically set attributes). This supports the use of
# qualified names.
ignored-classes=optparse.Values,thread._local,_thread._local

# List of module names for which member attributes should not be checked
# (useful for modules/projects where namespaces are manipulated during runtime
# and thus existing member attributes cannot be deduced by static analysis). It
# supports qualified module names, as well as Unix pattern matching.
ignored-modules=

# Show a hint with possible names when a member name was not found. The aspect
# of finding the hint is based on edit distance.
missing-member-hint=yes

# The minimum edit distance a name should have in order to be considered a
# similar match for a missing member name.
missing-member-hint-distance=1

# The total number of similar names that should be taken in consideration when
# showing a hint for a missing member.
missing-member-max-choices=1

# List of decorators that change the signature of a decorated function.
signature-mutators=

[DESIGN]

# Maximum number of arguments for function / method.
max-args=10

# Maximum number of attributes for a class (see R0902).
max-attributes=10

# Maximum number of boolean expressions in an if statement (see R0916).
max-bool-expr=10

# Maximum number of branch for function / method body.
max-branches=12

# Maximum number of locals for function / method body.
max-locals=20

# Maximum number of parents for a class (see R0901).
max-parents=7

# Maximum number of public methods for a class (see R0904).
max-public-methods=20

# Maximum number of return / yield for function / method body.
max-returns=6

# Maximum number of statements in function / method body.
max-statements=50

# Minimum number of public methods for a class (see R0903).
min-public-methods=2

[IMPORTS]

# List of modules that can be imported at any level, not just the top level
# one.
allow-any-import-level=

# Allow wildcard imports from modules that define __all__.
allow-wildcard-with-all=no

# Analyse import fallback blocks. This can be used to support both Python 2 and
# 3 compatible code, which means that the block might have code that exists
# only in one or another interpreter, leading to false positives when analysed.
analyse-fallback-blocks=no

# Deprecated modules which should not be used, separated by a comma.
deprecated-modules=optparse,tkinter.tix

# Create a graph of external dependencies in the given file (report RP0402 must
# not be disabled).
ext-import-graph=

# Create a graph of every (i.e. internal and external) dependencies in the
# given file (report RP0402 must not be disabled).
import-graph=

# Create a graph of internal dependencies in the given file (report RP0402 must
# not be disabled).
int-import-graph=

# Force import order to recognize a module as part of the standard
# compatibility libraries.
known-standard-library=

# Force import order to recognize a module as part of a third party library.
known-third-party=enchant

# Couples of modules and preferred modules, separated by a comma.
preferred-modules=

[CLASSES]

# List of method names used to declare (i.e. assign) instance attributes.
defining-attr-methods=__init__,
                      __new__,
                      setUp,
                      __post_init__

# List of member names, which should be excluded from the protected access
# warning.
exclude-protected=_asdict,
                  _fields,
                  _replace,
                  _source,
                  _make

# List of valid names for the first argument in a class method.
valid-classmethod-first-arg=cls

# List of valid names for the first argument in a metaclass class method.
valid-metaclass-classmethod-first-arg=cls

[EXCEPTIONS]

# Exceptions that will emit a warning when being caught. Defaults to
# "BaseException, Exception".
overgeneral-exceptions=BaseException,
                       Exception

Command used

pylint

Pylint output

$ pylint --rcfile=.pylintrc myproject/ tests/

Expected behavior

should passed

Pylint version

2.10.2

OS / Environment

Centos 7.9 Python 3.8.6

Additional dependencies

amqp==5.0.6 aniso8601==9.0.1 astroid==2.7.3 attrs==21.2.0 billiard==3.6.4.0 black==21.8b0 cached-property==1.5.2 celery==5.1.2 celery-redbeat==2.0.0 certifi==2021.5.30 charset-normalizer==2.0.4 click==7.1.2 click-didyoumean==0.0.3 click-plugins==1.1.1 click-repl==0.2.0 dataclasses==0.8 dnspython==2.1.0 dukpy==0.2.3 fakeredis==1.6.0 Flask==2.0.1 flask-restx==0.5.1 gevent==21.8.0 greenlet==1.1.1 idna==3.2 importlib-metadata==4.8.1 iniconfig==1.1.1 isort==5.9.3 itsdangerous==2.0.1 Jinja2==3.0.1 jsonschema==3.2.0 kamene==0.32 kombu==5.1.0 lazy-object-proxy==1.6.0 ldap3==2.9.1 MarkupSafe==2.0.1 mccabe==0.6.1 mypy-extensions==0.4.3 packaging==21.0 pathspec==0.9.0 platformdirs==2.3.0 pluggy==0.13.1 prompt-toolkit==3.0.20 py==1.10.0 pyasn1==0.4.8 pycurl==7.44.1 pylint==2.10.2 pyodbc==4.0.32 PyPAC==0.15.0 pyparsing==2.4.7 pyrsistent==0.18.0 pytest==6.2.4 pytest-pylint==0.18.0 pytest-sugar==0.9.4 python-dateutil==2.8.2 python-dotenv==0.19.0 pytz==2021.1 PyYAML==5.4.1 redis==3.5.3 regex==2021.8.28 requests==2.26.0 setproctitle==1.2.2 six==1.16.0 sortedcontainers==2.4.0 tenacity==8.0.1 termcolor==1.1.0 tld==0.12.6 toml==0.10.2 tomli==1.2.1 typed-ast==1.4.3 typing-extensions==3.10.0.2 urllib3==1.26.6 uWSGI==2.0.19.1 vine==5.0.0 wcwidth==0.2.5 Werkzeug==2.0.1 wrapt==1.12.1 xxhash==2.0.2 zipp==3.5.0 zope.event==4.5.0 zope.interface==5.4.0 zstandard==0.15.2

[villebro]

I can confirm that we're seeing the same behavior on CI of apache/superset from time to time after bumping pylint from 2.9.6 to 2.10.2 (https://github.com/apache/superset/pull/16463)

[codeboten]

Can confirm we saw the same thing in open-telemetry/opentelemetry-python-contrib https://github.com/open-telemetry/opentelemetry-python-contrib/pull/633. Tested with 2.11.1 today and the issue is still present.

[DanielNoord]

@codeboten were you able to reproduce this locally? I tried to run pylint over your codebase 15+ times in my own environment and didn't get a "hang".

[codeboten]

@DanielNoord thanks for the quick reply! I was originally using tox -e lint to reproduce the issue but managed to narrow it down to a single package in my envionrment. I run the following command from the root of that repo, and then the prompt never returns:

pylint instrumentation/opentelemetry-instrumentation-flask/src/opentelemetry

[codeboten]

It looks like it's specifically this file:

instrumentation/opentelemetry-instrumentation-flask/src/opentelemetry/instrumentation/flask/__init__.py

[villebro]

I was originally using tox -e lint to reproduce the issue but managed to narrow it down to a single package in my envionrment. I run the following command from the root of that repo, and then the prompt never returns:

pylint instrumentation/opentelemetry-instrumentation-flask/src/opentelemetry

@codeboten I was also going to add that hanging on the apache/superset repo happens both on GitHub Actions and via tox -e pylint, but I don't believe I was able to repro directly from the CLI (but I probably didn't test that as thoroughly). I can try to repro and see if I can narrow it down to a specific file.

[DanielNoord]

@codeboten I can't seem to reproduce this in a fresh environment. See the following commands:

Last login: Tue Sep 21 19:56:50 on ttys001
❯ gh repo clone open-telemetry/opentelemetry-python-contrib
Cloning into 'opentelemetry-python-contrib'...
remote: Enumerating objects: 21372, done.
remote: Counting objects: 100% (133/133), done.
remote: Compressing objects: 100% (74/74), done.
remote: Total 21372 (delta 39), reused 102 (delta 29), pack-reused 21239
Receiving objects: 100% (21372/21372), 9.00 MiB | 7.32 MiB/s, done.
Resolving deltas: 100% (10888/10888), done.
❯ cd /Users/daniel/DocumentenLaptop/opentelemetry-python-contrib
❯ pyenv virtualenv 3.9.5 opentel
Looking in links: /var/folders/pn/p_xntssj1cgfh8wwwpy8br580000gn/T/tmpz_k3d1rn
Requirement already satisfied: setuptools in /Users/daniel/.pyenv/versions/3.9.5/envs/opentel/lib/python3.9/site-packages (56.0.0)
Requirement already satisfied: pip in /Users/daniel/.pyenv/versions/3.9.5/envs/opentel/lib/python3.9/site-packages (21.1.1)
❯ pyenv activate opentel
pyenv-virtualenv: prompt changing will be removed from future release. configure `export PYENV_VIRTUALENV_DISABLE_PROMPT=1' to simulate the behavior.
❯ pip install -r /Users/daniel/DocumentenLaptop/opentelemetry-python-contrib/dev-requirements.txt
Collecting pylint<2.10
  Using cached pylint-2.9.6-py3-none-any.whl (375 kB)
Collecting flake8~=3.7
  Using cached flake8-3.9.2-py2.py3-none-any.whl (73 kB)
Collecting isort~=5.6
  Using cached isort-5.9.3-py3-none-any.whl (106 kB)
Collecting black==19.*,>=19.3b0
  Using cached black-19.10b0-py36-none-any.whl (97 kB)
Collecting httpretty~=1.0
  Using cached httpretty-1.1.4-py3-none-any.whl
Collecting mypy==0.790
  Using cached mypy-0.790-py3-none-any.whl (2.4 MB)
Collecting sphinx
  Using cached Sphinx-4.2.0-py3-none-any.whl (3.1 MB)
Collecting sphinx-rtd-theme~=0.4
  Using cached sphinx_rtd_theme-0.5.2-py2.py3-none-any.whl (9.1 MB)
Collecting sphinx-autodoc-typehints
  Using cached sphinx_autodoc_typehints-1.12.0-py3-none-any.whl (9.4 kB)
Collecting pytest!=5.2.3
  Using cached pytest-6.2.5-py3-none-any.whl (280 kB)
Collecting pytest-cov>=2.8
  Using cached pytest_cov-2.12.1-py2.py3-none-any.whl (20 kB)
Collecting readme-renderer~=24.0
  Using cached readme_renderer-24.0-py2.py3-none-any.whl (15 kB)
Collecting grpcio-tools==1.29.0
  Using cached grpcio-tools-1.29.0.tar.gz (2.0 MB)
Collecting mypy-protobuf>=1.23
  Using cached mypy_protobuf-2.10-py3-none-any.whl (15 kB)
Collecting protobuf>=3.13.0
  Using cached protobuf-3.18.0-cp39-cp39-macosx_10_9_x86_64.whl (1.0 MB)
Collecting appdirs
  Using cached appdirs-1.4.4-py2.py3-none-any.whl (9.6 kB)
Collecting typed-ast>=1.4.0
  Using cached typed_ast-1.4.3-cp39-cp39-macosx_10_9_x86_64.whl (226 kB)
Collecting pathspec<1,>=0.6
  Using cached pathspec-0.9.0-py2.py3-none-any.whl (31 kB)
Collecting regex
  Using cached regex-2021.8.28-cp39-cp39-macosx_10_9_x86_64.whl (285 kB)
Collecting attrs>=18.1.0
  Using cached attrs-21.2.0-py2.py3-none-any.whl (53 kB)
Collecting toml>=0.9.4
  Using cached toml-0.10.2-py2.py3-none-any.whl (16 kB)
Collecting click>=6.5
  Using cached click-8.0.1-py3-none-any.whl (97 kB)
Collecting typing-extensions>=3.7.4
  Using cached typing_extensions-3.10.0.2-py3-none-any.whl (26 kB)
Collecting mypy-extensions<0.5.0,>=0.4.3
  Using cached mypy_extensions-0.4.3-py2.py3-none-any.whl (4.5 kB)
Collecting grpcio>=1.29.0
  Using cached grpcio-1.40.0-cp39-cp39-macosx_10_10_x86_64.whl (4.0 MB)
Collecting mccabe<0.7,>=0.6
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You should consider upgrading via the '/Users/daniel/.pyenv/versions/3.9.5/envs/opentel/bin/python3.9 -m pip install --upgrade pip' command.
❯ pip install pylint==2.11.1
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WARNING: You are using pip version 21.1.1; however, version 21.2.4 is available.
You should consider upgrading via the '/Users/daniel/.pyenv/versions/3.9.5/envs/opentel/bin/python3.9 -m pip install --upgrade pip' command.
❯ pylint instrumentation/opentelemetry-instrumentation-flask/src/opentelemetry
************* Module opentelemetry
instrumentation/opentelemetry-instrumentation-flask/src/opentelemetry/__init__.py:1:0: F0010: error while code parsing: Unable to load file instrumentation/opentelemetry-instrumentation-flask/src/opentelemetry/__init__.py:
[Errno 2] No such file or directory: 'instrumentation/opentelemetry-instrumentation-flask/src/opentelemetry/__init__.py' (parse-error)

[DanielNoord]

I do wonder why pylint is looking for a __init__.py file. This might be because the top-level directory are modules so it expects the rest to be as well. I know that (namespace) packages are something that pylint has troubling dealing with at times. However, I also don't know what changed about this in 2.10.

[codeboten]

Thanks for adding your reproduction steps @DanielNoord. I was able to follow your steps and reproduce pylint not returning by running the following command before running pylint. The eachdist script iterates through the packages in this repo and installs them via pip:

./scripts/eachdist.py install
pylint instrumentation/opentelemetry-instrumentation-flask/src/opentelemetry/instrumentation/flask

Interesting sidenote this does not hang:

pylint instrumentation/opentelemetry-instrumentation-flask/src/opentelemetry

but this does:

pylint instrumentation/opentelemetry-instrumentation-flask/src/opentelemetry/instrumentation/flask

[DanielNoord]

Thank you! I have actually managed to break pylint/astroid myself after running tox a couple of times (I guess it calls the script you refer to). Investigating now, although I think this requires quite advanced knowledge of astroid I'm going to see if I can find what's wrong.

[DanielNoord]

I found a solution! Although I have no idea what will break when I apply it, I do know where we need to look to fully solve this! Going to see if I can make all tests pass with the change, but the culprit is in https://github.com/PyCQA/astroid/commit/cf6528cbc158097c4903f0cab68242ff14bb591b#

[DanielNoord]

@folkvir would you be able to test if installing astroid from this branch fixes the issues on your repository?

Never mind, pre-commit doesn't like my change. Going to fix!

[nelfin]

@folkvir, @codeboten, @villebro could you try disabling the design-analysis checkers via --disable=too-many-ancestors,too-many-instance-attributes,too-few-public-methods,too-many-public-methods and see if that affects your performance? See https://github.com/PyCQA/astroid/pull/1188#issuecomment-924707326 for more context.

[villebro]

@nelfin I'll try to carve out time for this later this week 👍 One thing worth noting - we've been getting flip-floppy false positives on too-many-instance-attributes and useless-suppression, which was the original reason for bumping to 2.10 in the first place (see https://github.com/apache/superset/pull/16463 for more details). While this is most likely unrelated, I'd be curious to hear if anyone else has seen this behavior (the reason I'm asking is because you mentioned disabling too-many-instance-attributes above)

[Pierre-Sassoulas]

I'd be curious to hear if anyone else has seen this behavior

There is this issue I think : https://github.com/PyCQA/pylint/issues/2366 and we also encountered the problem ourselves in astroid

[DanielNoord]

@villebro I have looked at #2366 and submitted a fix, however, I don't think this will fix your issue. I did notice a pattern within some of the checkers that creates useless-suppression false positives though. Would you mind opening an issue with a reproducible example? I'm going to see if I can tackle these useless-suppression false positives and an issue would help keep track of progress!