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Configuration in MegaLinter

Variable Description Default value
PYTHON_PYLINT_ARGUMENTS User custom arguments to add in linter CLI call
Ex: -s --foo "bar"
PYTHON_PYLINT_FILTER_REGEX_INCLUDE Custom regex including filter
Ex: (src\|lib)
Include every file
PYTHON_PYLINT_FILTER_REGEX_EXCLUDE Custom regex excluding filter
Ex: (test\|examples)
Exclude no file
PYTHON_PYLINT_CLI_LINT_MODE Override default CLI lint mode
- file: Calls the linter for each file
- list_of_files: Call the linter with the list of files as argument
- project: Call the linter from the root of the project
list_of_files
PYTHON_PYLINT_FILE_EXTENSIONS Allowed file extensions. "*" matches any extension, "" matches empty extension. Empty list excludes all files
Ex: [".py", ""]
[".py"]
PYTHON_PYLINT_FILE_NAMES_REGEX File name regex filters. Regular expression list for filtering files by their base names using regex full match. Empty list includes all files
Ex: ["Dockerfile(-.+)?", "Jenkinsfile"]
Include every file
PYTHON_PYLINT_PRE_COMMANDS List of bash commands to run before the linter None
PYTHON_PYLINT_POST_COMMANDS List of bash commands to run after the linter None
PYTHON_PYLINT_CONFIG_FILE pylint configuration file name
Use LINTER_DEFAULT to let the linter find it
.pylintrc
PYTHON_PYLINT_RULES_PATH Path where to find linter configuration file Workspace folder, then MegaLinter default rules
PYTHON_PYLINT_DISABLE_ERRORS Run linter but consider errors as warnings false
PYTHON_PYLINT_DISABLE_ERRORS_IF_LESS_THAN Maximum number of errors allowed 0

IDE Integration

Use pylint in your favorite IDE to catch errors before MegaLinter !

IDE Extension Name Install
Eclipse PyLint Visit Web Site
IDEA PyCharm (Native Support) Visit Web Site
vim pylint.vim Visit Web Site
visual_studio Native Support Visit Web Site
Visual Studio Code Native Support Visit Web Site

MegaLinter Flavours

This linter is available in the following flavours

Flavor Description Embedded linters Info
all Default MegaLinter Flavor 105 Docker Image Size (tag) Docker Pulls
python Optimized for PYTHON based projects 52 Docker Image Size (tag) Docker Pulls

Behind the scenes

How are identified applicable files

  • File extensions: .py

How the linting is performed

  • pylint is called once with the list of files as arguments (list_of_files CLI lint mode)

Example calls

pylint myfile.py
pylint --rcfile .python-lint myfile.py

Help content

usage: pylint [options]

options:
  -h, --help            show this help message and exit

Commands:
  Options which are actually commands. Options in this group are mutually exclusive.

  --rcfile RCFILE       Specify a configuration file to load.
  --output OUTPUT       Specify an output file.
  --help-msg HELP_MSG [HELP_MSG ...]
                        Display a help message for the given message id and
                        exit. The value may be a comma separated list of
                        message ids.
  --list-msgs           Display a list of all pylint's messages divided by
                        whether they are emittable with the given interpreter.
  --list-msgs-enabled   Display a list of what messages are enabled, disabled
                        and non-emittable with the given configuration.
  --list-groups         List pylint's message groups.
  --list-conf-levels    Generate pylint's confidence levels.
  --list-extensions     List available extensions.
  --full-documentation  Generate pylint's full documentation.
  --generate-rcfile     Generate a sample configuration file according to the
                        current configuration. You can put other options
                        before this one to get them in the generated
                        configuration.
  --generate-toml-config
                        Generate a sample configuration file according to the
                        current configuration. You can put other options
                        before this one to get them in the generated
                        configuration. The config is in the .toml format.
  --long-help           Show more verbose help.

Main:
  --init-hook INIT_HOOK
                        Python code to execute, usually for sys.path
                        manipulation such as pygtk.require().
  --errors-only, -E     In error mode, messages with a category besides ERROR
                        or FATAL are suppressed, and no reports are done by
                        default. Error mode is compatible with disabling
                        specific errors.
  --verbose , -v        In verbose mode, extra non-checker-related info will
                        be displayed.
  --enable-all-extensions
                        Load and enable all available extensions. Use --list-
                        extensions to see a list all available extensions.
  --ignore <file>[,<file>...]
                        Files or directories to be skipped. They should be
                        base names, not paths. (default: ('CVS',))
  --ignore-patterns <pattern>[,<pattern>...]
                        Files or directories matching the regex patterns are
                        skipped. The regex matches against base names, not
                        paths. The default value ignores Emacs file locks
                        (default: (re.compile('^\\.#'),))
  --ignore-paths <pattern>[,<pattern>...]
                        Add files or directories matching the regex patterns
                        to the ignore-list. The regex matches against paths
                        and can be in Posix or Windows format. (default: [])
  --persistent <y or n>
                        Pickle collected data for later comparisons. (default:
                        True)
  --load-plugins <modules>
                        List of plugins (as comma separated values of python
                        module names) to load, usually to register additional
                        checkers. (default: ())
  --fail-under <score>  Specify a score threshold to be exceeded before
                        program exits with error. (default: 10)
  --fail-on <msg ids>   Return non-zero exit code if any of these
                        messages/categories are detected, even if score is
                        above --fail-under value. Syntax same as enable.
                        Messages specified are enabled, while categories only
                        check already-enabled messages. (default: )
  --jobs <n-processes>, -j <n-processes>
                        Use multiple processes to speed up Pylint. Specifying
                        0 will auto-detect the number of processors available
                        to use, and will cap the count on Windows to avoid
                        hangs. (default: 1)
  --limit-inference-results <number-of-results>
                        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. (default: 100)
  --extension-pkg-allow-list <pkg[,pkg]>
                        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. (default: [])
  --extension-pkg-whitelist <pkg[,pkg]>
                        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. (This is an alternative name to
                        extension-pkg-allow-list for backward compatibility.)
                        (default: [])
  --suggestion-mode <y or n>
                        When enabled, pylint would attempt to guess common
                        misconfiguration and emit user-friendly hints instead
                        of false-positive error messages. (default: True)
  --exit-zero           Always return a 0 (non-error) status code, even if
                        lint errors are found. This is primarily useful in
                        continuous integration scripts. (default: False)
  --from-stdin          Interpret the stdin as a python script, whose filename
                        needs to be passed as the module_or_package argument.
                        (default: False)
  --recursive <yn>      Discover python modules and packages in the file
                        system subtree. (default: False)
  --py-version <py_version>
                        Minimum Python version to use for version dependent
                        checks. Will default to the version used to run
                        pylint. (default: (3, 10))
  --ignored-modules <module names>
                        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. (default: ())
  --analyse-fallback-blocks <y or n>
                        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. (default: False)

Reports:
  Options related to output formatting and reporting

  --output-format <format>, -f <format>
                        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.
  --reports <y or n>, -r <y or n>
                        Tells whether to display a full report or only the
                        messages. (default: False)
  --evaluation <python_expression>
                        Python expression which should return a score less
                        than or equal to 10. You have access to the variables
                        'fatal', 'error', 'warning', 'refactor', 'convention',
                        and 'info' 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).
                        (default: max(0, 0 if fatal else 10.0 - ((float(5 *
                        error + warning + refactor + convention) / statement)
                        * 10)))
  --score <y or n>, -s <y or n>
                        Activate the evaluation score. (default: True)
  --msg-template <template>
                        Template used to display messages. This is a python
                        new-style format string used to format the message
                        information. See doc for all details. (default: )

Messages control:
  Options controlling analysis messages

  --confidence <levels>
                        Only show warnings with the listed confidence levels.
                        Leave empty to show all. Valid levels: HIGH,
                        CONTROL_FLOW, INFERENCE, INFERENCE_FAILURE, UNDEFINED.
                        (default: ['HIGH', 'CONTROL_FLOW', 'INFERENCE',
                        'INFERENCE_FAILURE', 'UNDEFINED'])
  --enable <msg ids>, -e <msg ids>
                        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.
  --disable <msg ids>, -d <msg ids>
                        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 re-enable 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".

Logging:
  Checks use of the logging module.

  --logging-modules <comma separated list>
                        Logging modules to check that the string format
                        arguments are in logging function parameter format.
                        (default: ('logging',))
  --logging-format-style <old (%) or new ({)>
                        The type of string formatting that logging methods do.
                        `old` means using % formatting, `new` is for `{}`
                        formatting. (default: old)

Similarities:
  Checks for similarities and duplicated code.

  --min-similarity-lines <int>
                        Minimum lines number of a similarity. (default: 4)
  --ignore-comments <y or n>
                        Comments are removed from the similarity computation
                        (default: True)
  --ignore-docstrings <y or n>
                        Docstrings are removed from the similarity computation
                        (default: True)
  --ignore-imports <y or n>
                        Imports are removed from the similarity computation
                        (default: True)
  --ignore-signatures <y or n>
                        Signatures are removed from the similarity computation
                        (default: True)

Miscellaneous:
  BaseChecker for encoding issues.

  --notes <comma separated values>
                        List of note tags to take in consideration, separated
                        by a comma. (default: ('FIXME', 'XXX', 'TODO'))
  --notes-rgx <regexp>  Regular expression of note tags to take in
                        consideration. (default: )

Design:
  Checker of potential misdesigns.

  --max-args <int>      Maximum number of arguments for function / method.
                        (default: 5)
  --max-locals <int>    Maximum number of locals for function / method body.
                        (default: 15)
  --max-returns <int>   Maximum number of return / yield for function / method
                        body. (default: 6)
  --max-branches <int>  Maximum number of branch for function / method body.
                        (default: 12)
  --max-statements <int>
                        Maximum number of statements in function / method
                        body. (default: 50)
  --max-parents <num>   Maximum number of parents for a class (see R0901).
                        (default: 7)
  --ignored-parents <comma separated list of class names>
                        List of qualified class names to ignore when counting
                        class parents (see R0901) (default: ())
  --max-attributes <num>
                        Maximum number of attributes for a class (see R0902).
                        (default: 7)
  --min-public-methods <num>
                        Minimum number of public methods for a class (see
                        R0903). (default: 2)
  --max-public-methods <num>
                        Maximum number of public methods for a class (see
                        R0904). (default: 20)
  --max-bool-expr <num>
                        Maximum number of boolean expressions in an if
                        statement (see R0916). (default: 5)
  --exclude-too-few-public-methods <pattern>[,<pattern>...]
                        List of regular expressions of class ancestor names to
                        ignore when counting public methods (see R0903)
                        (default: [])

Format:
  Formatting checker.

  --max-line-length <int>
                        Maximum number of characters on a single line.
                        (default: 100)
  --ignore-long-lines <regexp>
                        Regexp for a line that is allowed to be longer than
                        the limit. (default: ^\s*(# )?<?https?://\S+>?$)
  --single-line-if-stmt <y or n>
                        Allow the body of an if to be on the same line as the
                        test if there is no else. (default: False)
  --single-line-class-stmt <y or n>
                        Allow the body of a class to be on the same line as
                        the declaration if body contains single statement.
                        (default: False)
  --max-module-lines <int>
                        Maximum number of lines in a module. (default: 1000)
  --indent-string <string>
                        String used as indentation unit. This is usually " "
                        (4 spaces) or "  " (1 tab). (default: )
  --indent-after-paren <int>
                        Number of spaces of indent required inside a hanging
                        or continued line. (default: 4)
  --expected-line-ending-format <empty or LF or CRLF>
                        Expected format of line ending, e.g. empty (any line
                        ending), LF or CRLF. (default: )

Variables:
  BaseChecker for variables.

  --init-import <y or n>
                        Tells whether we should check for unused import in
                        __init__ files. (default: False)
  --dummy-variables-rgx <regexp>
                        A regular expression matching the name of dummy
                        variables (i.e. expected to not be used). (default: _+
                        $|(_[a-zA-Z0-9_]*[a-zA-Z0-
                        9]+?$)|dummy|^ignored_|^unused_)
  --additional-builtins <comma separated list>
                        List of additional names supposed to be defined in
                        builtins. Remember that you should avoid defining new
                        builtins when possible. (default: ())
  --callbacks <callbacks>
                        List of strings which can identify a callback function
                        by name. A callback name must start or end with one of
                        those strings. (default: ('cb_', '_cb'))
  --redefining-builtins-modules <comma separated list>
                        List of qualified module names which can have objects
                        that can redefine builtins. (default: ('six.moves',
                        'past.builtins', 'future.builtins', 'builtins', 'io'))
  --ignored-argument-names <regexp>
                        Argument names that match this expression will be
                        ignored. Default to name with leading underscore.
                        (default: re.compile('_.*|^ignored_|^unused_'))
  --allow-global-unused-variables <y or n>
                        Tells whether unused global variables should be
                        treated as a violation. (default: True)
  --allowed-redefined-builtins <comma separated list>
                        List of names allowed to shadow builtins (default: ())

Basic:
  --good-names <names>  Good variable names which should always be accepted,
                        separated by a comma. (default: ('i', 'j', 'k', 'ex',
                        'Run', '_'))
  --good-names-rgxs <names>
                        Good variable names regexes, separated by a comma. If
                        names match any regex, they will always be accepted
                        (default: )
  --bad-names <names>   Bad variable names which should always be refused,
                        separated by a comma. (default: ('foo', 'bar', 'baz',
                        'toto', 'tutu', 'tata'))
  --bad-names-rgxs <names>
                        Bad variable names regexes, separated by a comma. If
                        names match any regex, they will always be refused
                        (default: )
  --name-group <name1:name2>
                        Colon-delimited sets of names that determine each
                        other's naming style when the name regexes allow
                        several styles. (default: ())
  --include-naming-hint <y or n>
                        Include a hint for the correct naming format with
                        invalid-name. (default: False)
  --property-classes <decorator names>
                        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. (default: ('abc.abstractproperty',))
  --argument-naming-style <style>
                        Naming style matching correct argument names.
                        (default: snake_case)
  --argument-rgx <regexp>
                        Regular expression matching correct argument names.
                        Overrides argument-naming-style. If left empty,
                        argument names will be checked with the set naming
                        style. (default: None)
  --attr-naming-style <style>
                        Naming style matching correct attribute names.
                        (default: snake_case)
  --attr-rgx <regexp>   Regular expression matching correct attribute names.
                        Overrides attr-naming-style. If left empty, attribute
                        names will be checked with the set naming style.
                        (default: None)
  --class-naming-style <style>
                        Naming style matching correct class names. (default:
                        PascalCase)
  --class-rgx <regexp>  Regular expression matching correct class names.
                        Overrides class-naming-style. If left empty, class
                        names will be checked with the set naming style.
                        (default: None)
  --class-attribute-naming-style <style>
                        Naming style matching correct class attribute names.
                        (default: any)
  --class-attribute-rgx <regexp>
                        Regular expression matching correct class attribute
                        names. Overrides class-attribute-naming-style. If left
                        empty, class attribute names will be checked with the
                        set naming style. (default: None)
  --class-const-naming-style <style>
                        Naming style matching correct class constant names.
                        (default: UPPER_CASE)
  --class-const-rgx <regexp>
                        Regular expression matching correct class constant
                        names. Overrides class-const-naming-style. If left
                        empty, class constant names will be checked with the
                        set naming style. (default: None)
  --const-naming-style <style>
                        Naming style matching correct constant names.
                        (default: UPPER_CASE)
  --const-rgx <regexp>  Regular expression matching correct constant names.
                        Overrides const-naming-style. If left empty, constant
                        names will be checked with the set naming style.
                        (default: None)
  --function-naming-style <style>
                        Naming style matching correct function names.
                        (default: snake_case)
  --function-rgx <regexp>
                        Regular expression matching correct function names.
                        Overrides function-naming-style. If left empty,
                        function names will be checked with the set naming
                        style. (default: None)
  --inlinevar-naming-style <style>
                        Naming style matching correct inline iteration names.
                        (default: any)
  --inlinevar-rgx <regexp>
                        Regular expression matching correct inline iteration
                        names. Overrides inlinevar-naming-style. If left
                        empty, inline iteration names will be checked with the
                        set naming style. (default: None)
  --method-naming-style <style>
                        Naming style matching correct method names. (default:
                        snake_case)
  --method-rgx <regexp>
                        Regular expression matching correct method names.
                        Overrides method-naming-style. If left empty, method
                        names will be checked with the set naming style.
                        (default: None)
  --module-naming-style <style>
                        Naming style matching correct module names. (default:
                        snake_case)
  --module-rgx <regexp>
                        Regular expression matching correct module names.
                        Overrides module-naming-style. If left empty, module
                        names will be checked with the set naming style.
                        (default: None)
  --typevar-rgx <regexp>
                        Regular expression matching correct type variable
                        names. If left empty, type variable names will be
                        checked with the set naming style. (default: None)
  --variable-naming-style <style>
                        Naming style matching correct variable names.
                        (default: snake_case)
  --variable-rgx <regexp>
                        Regular expression matching correct variable names.
                        Overrides variable-naming-style. If left empty,
                        variable names will be checked with the set naming
                        style. (default: None)
  --no-docstring-rgx <regexp>
                        Regular expression which should only match function or
                        class names that do not require a docstring. (default:
                        re.compile('^_'))
  --docstring-min-length <int>
                        Minimum line length for functions/classes that require
                        docstrings, shorter ones are exempt. (default: -1)

Imports:
  BaseChecker for import statements.

  --deprecated-modules <modules>
                        Deprecated modules which should not be used, separated
                        by a comma. (default: ())
  --preferred-modules <module:preferred-module>
                        Couples of modules and preferred modules, separated by
                        a comma. (default: ())
  --import-graph <file.gv>
                        Output a graph (.gv or any supported image format) of
                        all (i.e. internal and external) dependencies to the
                        given file (report RP0402 must not be disabled).
                        (default: )
  --ext-import-graph <file.gv>
                        Output a graph (.gv or any supported image format) of
                        external dependencies to the given file (report RP0402
                        must not be disabled). (default: )
  --int-import-graph <file.gv>
                        Output a graph (.gv or any supported image format) of
                        internal dependencies to the given file (report RP0402
                        must not be disabled). (default: )
  --known-standard-library <modules>
                        Force import order to recognize a module as part of
                        the standard compatibility libraries. (default: ())
  --known-third-party <modules>
                        Force import order to recognize a module as part of a
                        third party library. (default: ('enchant',))
  --allow-any-import-level <modules>
                        List of modules that can be imported at any level, not
                        just the top level one. (default: ())
  --allow-wildcard-with-all <y or n>
                        Allow wildcard imports from modules that define
                        __all__. (default: False)

Classes:
  Checker for class nodes.

  --defining-attr-methods <method names>
                        List of method names used to declare (i.e. assign)
                        instance attributes. (default: ('__init__', '__new__',
                        'setUp', '__post_init__'))
  --valid-classmethod-first-arg <argument names>
                        List of valid names for the first argument in a class
                        method. (default: ('cls',))
  --valid-metaclass-classmethod-first-arg <argument names>
                        List of valid names for the first argument in a
                        metaclass class method. (default: ('cls',))
  --exclude-protected <protected access exclusions>
                        List of member names, which should be excluded from
                        the protected access warning. (default: ('_asdict',
                        '_fields', '_replace', '_source', '_make'))
  --check-protected-access-in-special-methods <y or n>
                        Warn about protected attribute access inside special
                        methods (default: False)

Exceptions:
  Exception related checks.

  --overgeneral-exceptions <comma-separated class names>
                        Exceptions that will emit a warning when caught.
                        (default: ('BaseException', 'Exception'))

Spelling:
  Check spelling in comments and docstrings.

  --spelling-dict <dict name>
                        Spelling dictionary name. Available dictionaries:
                        none. To make it work, install the 'python-enchant'
                        package. (default: )
  --spelling-ignore-words <comma separated words>
                        List of comma separated words that should not be
                        checked. (default: )
  --spelling-private-dict-file <path to file>
                        A path to a file that contains the private dictionary;
                        one word per line. (default: )
  --spelling-store-unknown-words <y or n>
                        Tells whether to store unknown words to the private
                        dictionary (see the --spelling-private-dict-file
                        option) instead of raising a message. (default: n)
  --max-spelling-suggestions N
                        Limits count of emitted suggestions for spelling
                        mistakes. (default: 4)
  --spelling-ignore-comment-directives <comma separated words>
                        List of comma separated words that should be
                        considered directives if they appear at the beginning
                        of a comment and should not be checked. (default: fmt:
                        on,fmt: off,noqa:,noqa,nosec,isort:skip,mypy:)

Typecheck:
  Try to find bugs in the code using type inference.

  --ignore-on-opaque-inference <y or n>
                        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. (default:
                        True)
  --mixin-class-rgx <regexp>
                        Regex pattern to define which classes are considered
                        mixins. (default: .*[Mm]ixin)
  --ignore-mixin-members <y or n>
                        Tells whether missing members accessed in mixin class
                        should be ignored. A class is considered mixin if its
                        name matches the mixin-class-rgx option. (default:
                        True)
  --ignored-checks-for-mixins <list of messages names>
                        List of symbolic message names to ignore for Mixin
                        members. (default: ['no-member', 'not-async-context-
                        manager', 'not-context-manager', 'attribute-defined-
                        outside-init'])
  --ignore-none <y or n>
                        Tells whether to warn about missing members when the
                        owner of the attribute is inferred to be None.
                        (default: True)
  --ignored-classes <members names>
                        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. (default: ('optparse.Values', 'thread._local',
                        '_thread._local', 'argparse.Namespace'))
  --generated-members <members names>
                        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. (default: ())
  --contextmanager-decorators <decorator names>
                        List of decorators that produce context managers, such
                        as contextlib.contextmanager. Add to this list to
                        register other decorators that produce valid context
                        managers. (default: ['contextlib.contextmanager'])
  --missing-member-hint-distance <member hint edit distance>
                        The minimum edit distance a name should have in order
                        to be considered a similar match for a missing member
                        name. (default: 1)
  --missing-member-max-choices <member hint max choices>
                        The total number of similar names that should be taken
                        in consideration when showing a hint for a missing
                        member. (default: 1)
  --missing-member-hint <missing member hint>
                        Show a hint with possible names when a member name was
                        not found. The aspect of finding the hint is based on
                        edit distance. (default: True)
  --signature-mutators <decorator names>
                        List of decorators that change the signature of a
                        decorated function. (default: [])

Refactoring:
  Looks for code which can be refactored.

  --max-nested-blocks <int>
                        Maximum number of nested blocks for function / method
                        body (default: 5)
  --never-returning-functions <members names>
                        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. (default: ('sys.exit',
                        'argparse.parse_error'))

String:
  Check string literals.

  --check-str-concat-over-line-jumps <y or n>
                        This flag controls whether the implicit-str-concat
                        should generate a warning on implicit string
                        concatenation in sequences defined over several lines.
                        (default: False)
  --check-quote-consistency <y or n>
                        This flag controls whether inconsistent-quotes
                        generates a warning when the character used as a quote
                        delimiter is used inconsistently within a module.
                        (default: False)

Installation on mega-linter Docker image

  • PIP packages (Python):