.pylintrc

# PyLint config obtained from 'google-cloud' *library* code.

# NOTES:
# - Rules for test code are generated into 'pylintrc_reduced'
#   as deltas from this configuration by the 'run_pylint.py' script.
#
# - The majority of the content in this configuration is the
#   default provided by "generate-rcfile" (from PyLint version 1.6.4). Any
#   value that differs from the provided defaults will both specify
#   the "DEFAULT" being replaced and a "RATIONALE" for the value
#   we replace it with.
#
[MASTER]

# Specify a configuration file.
#rcfile=

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

# Add files or directories to the blacklist. They should be base names, not
# paths.
# DEFAULT: ignore=CVS
# RATIONALE: No files to ignore.
ignore=

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

# Pickle collected data for later comparisons.
persistent=yes

# List of plugins (as comma separated values of python modules names) to load,
# usually to register additional checkers.
# DEFAULT:  load-plugins=
# RATIONALE: We want to make sure our docstrings match the objects
#            they document.
load-plugins=pylint.extensions.check_docs

# Use multiple processes to speed up Pylint.
jobs=1

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

# 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=

# Allow optimization of some AST trees. This will activate a peephole AST
# optimizer, which will apply various small optimizations. For instance, it can
# be used to obtain the result of joining multiple strings with the addition
# operator. Joining a lot of strings can lead to a maximum recursion error in
# Pylint and this flag can prevent that. It has one side effect, the resulting
# AST will be different than the one from reality. This option is deprecated
# and it will be removed in Pylint 2.0.
optimize-ast=no


[MESSAGES CONTROL]

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

# 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=

# 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"
# RATIONALE:
# - protected-access: helpers use '_foo' of classes from generated code.
# - similarities:  'Bucket' and 'Blob' define 'metageneration' and 'owner' with
#                  identical implementation but different docstrings.
# - star-args:  standard Python idioms for varargs:
#                  ancestor = Query().filter(*order_props)
# - redefined-variable-type: This error is overzealous and complains at e.g.
#                      if some_prop:
#                          return int(value)
#                      else:
#                          return float(value)
# - import-error: imports are checked via tests.
# - wrong-import-position: This error is overzealous. It assumes imports are
#                          completed whenever something non-trivial is
#                          defined, e.g.
#                              try:
#                                  from foo import Bar
#                              except ImportError:
#                                  class Bar(object):
#                                      """Hi everyone"""
#                          and thus causes subsequent imports to be
#                          diagnosed as out-of-order.
# - no-name-in-module: Error gives a lot of false positives for names which
#                      are defined dynamically. Also, any truly missing names
#                      will be detected by our 100% code coverage.
# - missing-raises-doc: New in PyLint 1.6, enforcing PEP 257 and flagged our
#                       existing codebase.  See #1968 for eventual fixes.
# - ungrouped-imports: We share the 'google' namespace with third-party
#                      packages. PEP 8 wants those to be separate from "local"
#                      imports.
disable =
    import-star-module-level,
    old-octal-literal,
    oct-method,
    print-statement,
    unpacking-in-except,
    parameter-unpacking,
    backtick,
    old-raise-syntax,
    old-ne-operator,
    long-suffix,
    dict-view-method,
    dict-iter-method,
    metaclass-assignment,
    next-method-called,
    raising-string,
    indexing-exception,
    raw_input-builtin,
    long-builtin,
    file-builtin,
    execfile-builtin,
    coerce-builtin,
    cmp-builtin,
    buffer-builtin,
    basestring-builtin,
    apply-builtin,
    filter-builtin-not-iterating,
    using-cmp-argument,
    useless-suppression,
    range-builtin-not-iterating,
    suppressed-message,
    no-absolute-import,
    old-division,
    cmp-method,
    reload-builtin,
    zip-builtin-not-iterating,
    intern-builtin,
    unichr-builtin,
    reduce-builtin,
    standarderror-builtin,
    unicode-builtin,
    xrange-builtin,
    coerce-method,
    delslice-method,
    getslice-method,
    setslice-method,
    input-builtin,
    round-builtin,
    hex-method,
    nonzero-method,
    map-builtin-not-iterating,
    protected-access,
    similarities,
    star-args,
    redefined-variable-type,
    import-error,
    wrong-import-position,
    no-name-in-module,
    missing-raises-doc,
    ungrouped-imports,
    superfluous-parens,
    keyword-arg-before-vararg,
    missing-docstring,

[REPORTS]

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

# Put messages in a separate file for each module / package specified on the
# command line instead of printing them on stdout. Reports (if any) will be
# written in a file name "pylint_global.[txt|html]". This option is deprecated
# and it will be removed in Pylint 2.0.
files-output=no

# Tells whether to display a full report or only the messages
# DEFAULT:  reports=yes
# RATIONALE:  run from Travis / tox, and don't need / want to parse output.
reports=yes

# Python expression which should return a note less than 10 (10 is the highest
# note). You have access to the variables errors warning, statement which
# respectively contain the number of errors / warnings messages and the total
# number of statements analyzed. This 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={C}:{line:4d},{column:2d}:{msg_id}:{msg} ({symbol})


[VARIABLES]

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

# A regular expression matching the name of dummy variables (i.e. expectedly
# not used).
dummy-variables-rgx=(_+[a-zA-Z0-9]*?$)

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

# 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,validate_,run

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


[SPELLING]

# Spelling dictionary name. Available dictionaries: none. To make it working
# install 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 private dictionary; one word per line.
spelling-private-dict-file=

# Tells whether to store unknown words to indicated private dictionary in
# --spelling-private-dict-file option instead of raising a message.
spelling-store-unknown-words=no


[LOGGING]

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


[BASIC]

# Good variable names which should always be accepted, separated by a comma
# DEFAULT:  good-names=i,j,k,ex,Run,_
# RATIONALE:  'pb', 'id', 'pk' have well-understood meainings in the code.
# 'w' is commonly used to refer to a Workflow, same as 'a' to an analysis.
# 'r' is commonly used to store a resquests response while 'f' is a file.
# 'df' is a pandas DataFrame, 'pk' is a primary key.
good-names = i, j, k, ex, Run, _, pb, id, pk, w, a, f, r, df, jobName, unitName, jobStore, logToMaster, fileStore

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

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

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

# List of decorators that produce properties, such as abc.abstractproperty. Add
# to this list to register other decorators that produce valid properties.
property-classes=abc.abstractproperty

# Regular expression matching correct function names
function-rgx=[a-z_][a-z0-9_]{2,30}$

# Naming hint for function names
function-name-hint=[a-z_][a-z0-9_]{2,30}$

# Regular expression matching correct variable names
variable-rgx=[a-z_][a-z0-9_]

# Naming hint for variable names
variable-name-hint=[a-z_][a-z0-9_]{2,30}$

# Regular expression matching correct constant names
const-rgx=(([A-Z_][A-Z0-9_]*)|(__.*__))$

# Naming hint for constant names
const-name-hint=(([A-Z_][A-Z0-9_]*)|(__.*__))$

# Regular expression matching correct attribute names
attr-rgx=[a-z_][a-z0-9_]{2,30}$

# Naming hint for attribute names
attr-name-hint=[a-z_][a-z0-9_]{2,30}$

# Regular expression matching correct argument names
argument-rgx=[a-z_][a-z0-9_]{2,30}$

# Naming hint for argument names
argument-name-hint=[a-z_][a-z0-9_]{2,30}$

# Regular expression matching correct class attribute names
class-attribute-rgx=([A-Za-z_][A-Za-z0-9_]{2,30}|(__.*__))$

# Naming hint for class attribute names
class-attribute-name-hint=([A-Za-z_][A-Za-z0-9_]{2,30}|(__.*__))$

# Regular expression matching correct inline iteration names
inlinevar-rgx=[A-Za-z_][A-Za-z0-9_]*$

# Naming hint for inline iteration names
inlinevar-name-hint=[A-Za-z_][A-Za-z0-9_]*$

# Regular expression matching correct class names
class-rgx=[A-Z_][a-zA-Z0-9]+$

# Naming hint for class names
class-name-hint=[A-Z_][a-zA-Z0-9]+$

# Regular expression matching correct module names
module-rgx=(([a-z_][a-z0-9_]*)|([A-Z][a-zA-Z0-9]+))$

# Naming hint for module names
module-name-hint=(([a-z_][a-z0-9_]*)|([A-Z][a-zA-Z0-9]+))$

# Regular expression matching correct method names
# DEFAULT:  method-rgx=[a-z_][a-z0-9_]{2,30}$
# RATIONALE:  mapping long API names onto connection methods
method-rgx=[a-z_][a-z0-9_]{2,35}$

# Naming hint for method names
method-name-hint=[a-z_][a-z0-9_]{2,30}$

# Regular expression which should only match function or class names that do
# not require a docstring.
# DEFAULT: no-docstring-rgx=^_
# RATIONALE: More documentation, even for non-public methods, is useful.
no-docstring-rgx=__.*__

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


[ELIF]

# Maximum number of nested blocks for function / method body
max-nested-blocks=5


[SIMILARITIES]

# Minimum lines number of a similarity.
min-similarity-lines=4

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

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

# Ignore imports when computing similarities.
ignore-imports=no


[FORMAT]

# Maximum number of characters on a single line.
# DEFAULT: max-line-length=100
# RATIONALE: PEP8
max-line-length=80

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

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

# List of optional constructs for which whitespace checking is disabled. `dict-
# separator` is used to allow tabulation in dicts, etc.: {1  : 1,\n222: 2}.
# `trailing-comma` allows a space between comma and closing bracket: (a, ).
# `empty-line` allows space-only lines.
# DEFAULT:  no-space-check=trailing-comma,dict-separator
# RATIONALE: pylint ignores whitespace checks around the
#            constructs "dict-separator" (cases like {1:2}) and
#            "trailing-comma" (cases like {1: 2, }).
#            By setting "no-space-check" to empty whitespace checks will be
#            enforced around both constructs.
no-space-check =

# Maximum number of lines in a module
# DEFAULT:  max-module-lines=1000
# RATIONALE:  API-mapping
max-module-lines=1200

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

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

# Expected format of line ending, e.g. empty (any line ending), LF or CRLF.
# DEFAULT:  expected-line-ending-format=
# RATIONALE:  Uniform UNIX line endings.
expected-line-ending-format=LF


[TYPECHECK]

# 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

# 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:  ignored-modules=
# RATIONALE:  six aliases stuff for compatibility.
#             google.protobuf fixes up namespace package "late".
ignored-modules=six

# 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=thread._local,

# List of members which are set dynamically and missed by pylint inference
# system, therefore shouldn't trigger E1101 when accessed. Python regular
# expressions are accepted.
generated-members=itertuples,to_dict,pd.*,pandas.*,df.*

# 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


[MISCELLANEOUS]

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


[IMPORTS]

# Deprecated modules which should not be used, separated by a comma
deprecated-modules=regsub,TERMIOS,Bastion,rexec

# 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 external dependencies in the given file (report RP0402 must
# not be disabled)
ext-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

# 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


[DESIGN]

# Maximum number of arguments for function / method
# DEFAULT:  max-args=5
# RATIONALE:  API-mapping
max-args = 10

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

# Maximum number of locals for function / method body
# DEFAULT:  max-locals=15
# RATIONALE:  Extra thorny code with more locals.
max-locals=30

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

# Maximum number of branch for function / method body
max-branches=14

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

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

# Maximum number of attributes for a class (see R0902).
# DEFAULT:  max-attributes=7
# RATIONALE:  API mapping
max-attributes=15

# Minimum number of public methods for a class (see R0903).
# DEFAULT:  min-public-methods=2
# RATIONALE:  context mgrs may have *no* public methods
min-public-methods=0

# Maximum number of public methods for a class (see R0904).
# DEFAULT:  max-public-methods=20
# RATIONALE:  API mapping
max-public-methods=40

# Maximum number of boolean expressions in a if statement
max-bool-expr=5


[CLASSES]

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

# 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=mcs

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


[EXCEPTIONS]

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