User Commands pylint(1) NAME pylint - python code static checker SYNOPSIS pylint [ OPTIONS ] [ ] DESCRIPTION pylint is a Python source code analyzer which looks for pro- gramming errors, helps enforcing a coding standard and sniffs for some code smells (as defined in Martin Fowler's Refactoring book) Pylint can be seen as another PyChecker since nearly all tests you can do with PyChecker can also be done with Pylint. However, Pylint offers some more features, like checking length of lines of code, checking if variable names are well-formed according to your coding standard, or check- ing if declared interfaces are truly implemented, and much more. Additionally, it is possible to write plugins to add your own checks. OPTIONS --version show program's version number and exit --help, -h show this help message and exit MASTER --rcfile= Specify a configuration file. --init-hook= Python code to execute, usually for sys.path manipula- tion such as pygtk.require(). --errors-only, -e In debug mode, checkers without error messages are dis- abled and for others, only the ERROR messages are displayed, and no reports are done by default --profile= Profiled execution. [current: no] --ignore= Add to the black list. It should be pylint Last change: 2008-10-13 1 User Commands pylint(1) a base name, not a path. You may set this option multi- ple times. [current: CVS] --persistent= Pickle collected data for later comparisons. [current: yes] --cache-size= Set the cache size for astng objects. [current: 500] --load-plugins= List of plugins (as comma separated values of python modules names) to load, usually to register additional checkers. [current: none] COMMANDS --help-msg= Display a help message for the given message id and exit. The value may be a comma separated list of mes- sage ids. --list-msgs 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-man Generate pylint's man page. MESSAGES CONTROL --enable-checker= Enable only checker(s) with the given id(s). This option conflicts with the disable-checker option --disable-checker= Enable all checker(s) except those with the given id(s). This option conflicts with the enable-checker option --enable-msg-cat= Enable all messages in the listed categories. --disable-msg-cat= Disable all messages in the listed categories. --enable-msg= Enable the message(s) with the given id(s). pylint Last change: 2008-10-13 2 User Commands pylint(1) --disable-msg= Disable the message(s) with the given id(s). REPORTS --output-format=, -f Set the output format. Available formats are text, parseable, colorized, msvs (visual studio) and html [current: text] --include-ids=, -i Include message's id in output [current: no] --files-output= Put messages in a separate file for each module / pack- age 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]". [current: no] --reports=, -r Tells wether to display a full report or only the mes- sages [current: yes] --evaluation= 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 respectivly contain the number of errors / warnings messages and the total number of statements analyzed. This is used by the global evaluation report (R0004). [current: 10.0 - ((float(5 * error + warning + refactor + conven- tion) / statement) * 10)] --comment= Add a comment according to your evaluation note. This is used by the global evaluation report (R0004). [current: no] --enable-report= Enable the report(s) with the given id(s). --disable-report= Disable the report(s) with the given id(s). DESIGN --max-args= Maximum number of arguments for function / method [current: 5] --max-locals= Maximum number of locals for function / method body pylint Last change: 2008-10-13 3 User Commands pylint(1) [current: 15] --max-returns= Maximum number of return / yield for function / method body [current: 6] --max-branchs= Maximum number of branch for function / method body [current: 12] --max-statements= Maximum number of statements in function / method body [current: 50] --max-parents= Maximum number of parents for a class (see R0901). [current: 7] --max-attributes= Maximum number of attributes for a class (see R0902). [current: 7] --min-public-methods= Minimum number of public methods for a class (see R0903). [current: 2] --max-public-methods= Maximum number of public methods for a class (see R0904). [current: 20] CLASSES --ignore-iface-methods= List of interface methods to ignore, separated by a comma. This is used for instance to not check methods defines in Zope's Interface base class. [current: isImplementedBy,deferred,extends,names,namesAndDescriptions,queryDescriptionFor,getBases,getDescriptionFor,getDoc,getName,getTaggedValue,getTaggedValueTags,isEqualOrExtendedBy,setTaggedValue,isImplementedByInstancesOf,adaptWith,is_implemented_by] --defining-attr-methods= List of method names used to declare (i.e. assign) instance attributes. [current: __init__,__new__,setUp] IMPORTS --deprecated-modules= Deprecated modules which should not be used, separated by a comma [current: regsub,string,TERMIOS,Bastion,rexec] --import-graph= Create a graph of every (i.e. internal and external) dependencies in the given file (report R0402 must not pylint Last change: 2008-10-13 4 User Commands pylint(1) be disabled) [current: none] --ext-import-graph= Create a graph of external dependencies in the given file (report R0402 must not be disabled) [current: none] --int-import-graph= Create a graph of internal dependencies in the given file (report R0402 must not be disabled) [current: none] FORMAT --max-line-length= Maximum number of characters on a single line. [current: 80] --max-module-lines= Maximum number of lines in a module [current: 1000] --indent-string= String used as indentation unit. This is usually " " (4 spaces) or "" (1 tab). [current: ' '] SIMILARITIES --min-similarity-lines= Minimum lines number of a similarity. [current: 4] --ignore-comments= Ignore comments when computing similarities. [current: yes] --ignore-docstrings= Ignore docstrings when computing similarities. [current: yes] TYPECHECK --ignore-mixin-members= Tells wether missing members accessed in mixin class should be ignored. A mixin class is detected if its name ends with "mixin" (case insensitive). [current: yes] --ignored-classes= List of classes names for which member attributes should not be checked (useful for classes with attri- butes dynamicaly set). [current: SQLObject] --zope= pylint Last change: 2008-10-13 5 User Commands pylint(1) When zope mode is activated, add a predefined set of Zope acquired attributes to generated-members. [current: no] --generated-members= List of members which are set dynamically and missed by pylint inference system, and so shouldn't trigger E0201 when accessed. [current: REQUEST,acl_users,aq_parent] VARIABLES --init-import= Tells wether we should check for unused import in __init__ files. [current: no] --dummy-variables-rgx= A regular expression matching names used for dummy variables (i.e. not used). [current: _|dummy] --additional-builtins= List of additional names supposed to be defined in builtins. Remember that you should avoid to define new builtins when possible. [current: none] MISCELLANEOUS --notes= List of note tags to take in consideration, separated by a comma. [current: FIXME,XXX,TODO] BASIC --required-attributes= Required attributes for module, separated by a comma [current: none] --no-docstring-rgx= Regular expression which should only match functions or classes name which do not require a docstring [current: __.*__] --module-rgx= Regular expression which should only match correct module names [current: (([a-z_][a-z0-9_]*)|([A-Z][a- zA-Z0-9]+))$] --const-rgx= Regular expression which should only match correct module level names [current: (([A-Z_][A-Z0- 9_]*)|(__.*__))$] --class-rgx= pylint Last change: 2008-10-13 6 User Commands pylint(1) Regular expression which should only match correct class names [current: [A-Z_][a-zA-Z0-9]+$] --function-rgx= Regular expression which should only match correct function names [current: [a-z_][a-z0-9_]{2,30}$] --method-rgx= Regular expression which should only match correct method names [current: [a-z_][a-z0-9_]{2,30}$] --attr-rgx= Regular expression which should only match correct instance attribute names [current: [a-z_][a-z0- 9_]{2,30}$] --argument-rgx= Regular expression which should only match correct argument names [current: [a-z_][a-z0-9_]{2,30}$] --variable-rgx= Regular expression which should only match correct variable names [current: [a-z_][a-z0-9_]{2,30}$] --inlinevar-rgx= Regular expression which should only match correct list comprehension / generator expression variable names [current: [A-Za-z_][A-Za-z0-9_]*$] --good-names= Good variable names which should always be accepted, separated by a comma [current: i,j,k,ex,Run,_] --bad-names= Bad variable names which should always be refused, separated by a comma [current: foo,bar,baz,toto,tutu,tata] --bad-functions= List of builtins function names that should not be used, separated by a comma [current: map,filter,apply,input] ENVIRONMENT VARIABLES The following environment variables are used : * PYLINTHOME path to the directory where data of persistent run will be stored. If not found, it defaults to ~/.pylint.d/ or .pylint.d (in the current working directory) . The current PYLINTHOME is ~/.pylint.d. * PYLINTRC pylint Last change: 2008-10-13 7 User Commands pylint(1) path to the configuration file. If not found, it will use the first existant file in ~/.pylintrc, /etc/pylintrc. The current PYLINTRC is None. OUTPUT Using the default text output, the message format is : MESSAGE_TYPE: LINE_NUM:[OBJECT:] MESSAGE There are 5 kind of message types : * (C) convention, for programming standard violation * (R) refactor, for bad code smell * (W) warning, for python specific problems * (E) error, for probable bugs in the code * (F) fatal, if an error occured which prevented pylint from doing further processing. SEE ALSO logilab-astng(1), logilab-common(3) ATTRIBUTES See attributes(5) for descriptions of the following attri- butes: ___________________________________________ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | |___________________________________________ | Availability | SUNWpylint | |___________________________________________ | Interface Stability| Uncommitted | |____________________|_____________________| COPYRIGHT Copyright (c) 2003-2008 Sylvain Thenault (thenault@gmail.com). Copyright (c) 2003-2008 LOGILAB S.A. (Paris, FRANCE). http://www.logilab.fr/ -- mailto:contact@logilab.fr This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later ver- sion. This program is distributed in the hope that it will be use- ful, but WITHOUT ANY WARRANTY; without even the implied war- ranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PUR- POSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Bos- ton, MA 02111-1307 USA. BUGS Please report bugs on the project's mailing list: mailto://python-projects@logilab.org AUTHOR Sylvain Thenault NOTES Source for pylint is available online at http://opensolaris.org. pylint Last change: 2008-10-13 8