pylint是一個不錯的代碼靜態檢查工具。將其配置在pycharm中，隨時對代碼進行分析，確保所有代碼都符合pep8規范，以便于養成良好的習慣，將來受用無窮。

第一步，配置pylint

- program: python安裝目錄下scripts/pylint.exe

- arguments: --output-format=parseable --disable=R -rn --msg-template='{abspath}:{line}: [{msg_id}({symbol}), {obj}] {msg}' $FilePath$

- working firectory: $FileDir$

第二步，使用pylint

第三步，查看輸出

補充知識：pylint在pycharm的使用及pylint的配置

pylint作為python代碼風格檢查工具，接近 PEP8風格，在使用此方法的過程中，發現不僅能讓代碼更加規范，優雅，更能 發現 隱藏的bug。

pylint在Pycharm中的2種安裝方式；

第一種效果展示（優點：通過點擊錯誤點，自動定位到文件位置，省時）：

安裝步驟在：https://github.com/leinardi/pylint-pycharm 中;

我的設置如下：

使用方法：單文件 檢查：先點擊 某個文件內容，再點擊 綠色開始的箭頭 即可；

還可以 整個項目檢查，只檢查改變的文件 等等；

第二種安裝使用效果展示（缺點：需要手動的找到錯誤文件位置，耗時）：

安裝步驟在：https://stackoverflow.com/questions/38134086/how-to-run-pylint-with-pycharm

注意點：

使用方法：文件 或文件夾 右擊 選擇 External Tools => Pylint 即可

2種安裝方式總結：

a.通過pycharm的pylint檢測 對 忽略檢測文件的的 功能失效，此功能 必須 通過命令行才可使用

b.建議使用第一種方式 安裝及使用，因為 省時省力

pylint 忽略 文件夾的正確配置及使用操作：

示范 項目結構如圖 （忽略檢查app和 venv 文件夾的所有文件）：

在配置文件中 的 [MASTER]的ignore 的 添加 app,venv 或者 在命令行 中 如下：pylint --ignore app,venv project_name 即可（注意多個忽略之間用 逗號 隔開）；

通過命令行（不是pycharm的工具） 運行 腳本即可；命令為 pylint --rcfile=D:python3.6pylint_confpylint.conf project_name

pylint 禁用某些功能的方法：

在配置文件中的 [MESSAGES CONTROL] 的 disable 添加 想禁用的功能；

如：報錯如下;

則 在 disable尾部添加 missing-docstring 即可；

pylint在行級別的代碼中 禁用某些功能（也就是 不對所有代碼禁用某個檢測，只對某行代碼禁用某個檢測）：

教程地址：https://pylint.readthedocs.io/en/latest/user_guide/message-control.html

實例：

在一行代碼的 后面 添加注釋，便只忽略檢查某一行；

在一個文件的 單獨一行 使用 則 此行以下 被忽略；

pylint的配置：

注意點：pylint默認的配置 無法 滿足實際的開發需求，需要自行調整；如下代碼 為 自行調整的結果；

[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=# Add files or directories to the blacklist. They should be base names, not# paths. 選擇需要忽略檢查的文件夾（在pycharm中使用pylint工具忽略文件夾無效，只能在命令行中生效:pylint --ignore weixin,lib project_name）ignore=app,venv,install_file,libs# 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=# Use multiple processes to speed up Pylint. Specifying 0 will auto-detect the# number of processors available to use.jobs=1# 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 modules names) to load,# usually to register additional checkers.load-plugins=# Pickle collected data for later comparisons.persistent=no# Specify a configuration file.#rcfile=# 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'. 禁用pylint的某些模塊 如 顯示： Missing class docstring (missing-docstring) 則 添加 括號中的 missing-docstring 到變量中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, wrong-import-position, # 去掉 文件導入位置,不符合實際需求 logging-not-lazy, # 去掉 日志打印相關 missing-docstring, unnecessary-pass, # 去掉 判斷 空函數 不能加pass的校驗 redefined-builtin, # 去掉 命名和 python內置函數名或類名沖突 的校驗，如 python的next()函數，則變量不能命名為next no-self-use, # 去掉 類中沒有自己調用的 檢測 too-few-public-methods, # 去掉 檢測 類中方法太少 的功能 no-else-return, # 去掉 if中有return,else中不能有return的 校驗 no-else-raise, # 去掉 if中有raise,else中不能有raise的 校驗# 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 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=# 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=colorized# Tells whether to display a full report or only the messages.reports=yes# Activate the evaluation score.score=yes[REFACTORING]# Maximum number of nested blocks for function / method body;函數或方法的最大嵌套塊數max-nested-blocks=5# 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[BASIC]# 基礎設置# Naming style matching correct argument names. 參數命名風格argument-naming-style=snake_case# Regular expression matching correct argument names. Overrides argument-# naming-style. 不能有大寫字母argument-rgx=([^A-Z]+$)# Naming style matching correct attribute names.屬性命名風格attr-naming-style=snake_case# Regular expression matching correct attribute names. Overrides attr-naming-# style.不能有大寫字母attr-rgx=([^A-Z]+$)# Bad variable names which should always be refused, separated by a comma. 應該被拒絕的變量命名 窮舉，用逗號隔開bad-names=foo, bar, baz, toto, tutu, tata# Naming style matching correct class attribute names.類屬性命名風格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.類命名風格class-naming-style=PascalCase# Regular expression matching correct class names. Overrides class-naming-# style.#class-rgx=# Naming style matching correct constant names.常量命名風格const-naming-style=any# 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. 函數或類 的文檔注釋的最短長度docstring-min-length=-1# Naming style matching correct function names. 函數命名風格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.好的 變量命名 窮舉，用逗號隔開good-names=i, j, k, ex, Run, _# 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. 不需要文檔注釋的函數或類 的 匹配的正則；如下為 匹配除了以_開頭 的 其他函數或類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. 不理解property-classes=abc.abstractproperty# Naming style matching correct variable names. 變量命名風格variable-naming-style=snake_case# Regular expression matching correct variable names. Overrides variable-# naming-style. 變量命名風格 正則匹配 覆蓋上面的 本規則：不能有大寫字母variable-rgx=([^A-Z]+$)[FORMAT]# 格式的設置# Expected format of line ending, e.g. empty (空字符), LF(換行) or CRLF(回車并換行). 行結束的預期格式;expected-line-ending-format=# Regexp for a line that is allowed to be longer than the limit. 運行超過行長度的 符合正則的 字符；如下為：注釋的http或https請求ignore-long-lines=^s*(# )?<?https?://S+>?$# Number of spaces of indent required inside a hanging or continued line. 行縮進數indent-after-paren=4# String used as indentation unit. This is usually ' ' (4 spaces) or 't' (1# tab). 字符串縮進indent-string=’ ’# Maximum number of characters on a single line. 最大行字符長度max-line-length=125# Maximum number of lines in a module. 一個文件最大行數max-module-lines=1000# 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. 沒有空格的檢查no-space-check=trailing-comma, dict-separator# Allow the body of a class to be on the same line as the declaration if body# contains single statement. 允許類的主體與聲明在同一行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. 不理解single-line-if-stmt=no[LOGGING]# Format style used to check logging format string. `old` means using %# formatting, while `new` is for `{}` formatting. 日志代碼風格 old:’%s’ % (’日志內容’); new: ’{}’.format(’日志內容’)# 此方法 目前不支持 new的方式，禁用可在 disable 中 添加 logging-format-interpolationlogging-format-style=new# Logging modules to check that the string format arguments are in logging# function parameter format.logging-modules=logging[MISCELLANEOUS]# List of note tags to take in consideration, separated by a comma.注釋標簽列表notes=FIXME, XXX, TODO[SIMILARITIES]# 相似性# Ignore comments when computing similarities.ignore-comments=yes# Ignore docstrings when computing similarities.ignore-docstrings=yes# Ignore imports when computing similarities.ignore-imports=no# Minimum lines number of a similarity.min-similarity-lines=4[SPELLING]# Limits count of emitted suggestions for spelling mistakes.不理解max-spelling-suggestions=4# Spelling dictionary name. Available dictionaries: none. To make it working# install python-enchant package.. 拼寫詞典名字spelling-dict=# List of comma separated words that should not be checked.拼寫忽略的單詞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[STRING]# This flag controls whether the implicit-str-concat-in-sequence should# generate a warning on implicit string concatenation in sequences defined over# several lines.不理解check-str-concat-over-line-jumps=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[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.對于__init__文件的 導入不用檢查是否被使用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[CLASSES]# List of method names used to declare (i.e. assign) instance attributes.defining-attr-methods=__init__, __new__, setUp# 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[DESIGN]# Maximum number of arguments for function / method.一個函數或方法的最大參數個數max-args=8# Maximum number of attributes for a class (see R0902).一個類最多的屬性個數max-attributes=15# Maximum number of boolean expressions in an if statement.if語句中的最大布爾表達式個數max-bool-expr=5# Maximum number of branch for function / method body.一個函數或方法最大的分支個數（if else 個數）max-branches=15# Maximum number of locals for function / method body. 最大局部變量個數max-locals=30# Maximum number of parents for a class (see R0901).類的最大父類個數max-parents=7# Maximum number of public methods for a class (see R0904).類中公共方法個數max-public-methods=50# Maximum number of return / yield for function / method body.一個函數最大return個數max-returns=10# Maximum number of statements in function / method body.max-statements=100# Minimum number of public methods for a class (see R0903).min-public-methods=2[IMPORTS]# 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.不該被使用的廢棄模塊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[EXCEPTIONS]# Exceptions that will emit a warning when being caught. Defaults to# 'BaseException, Exception'. 捕獲的異常包含 Exception,BaseException會被 警告顯示，這里 去掉了 Exception(因為代碼里基本都是這種異常)overgeneral-exceptions=BaseException,# 其他注釋#報錯 詳解 http://pylint.pycqa.org/en/latest/technical_reference/features.html# inconsistent-return-statements 當函數中 if 有return else 沒有resturn

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