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python [2019/08/09 18:44] – [Edition Rule] francoispython [2019/09/10 16:52] (Version actuelle) – francois
Ligne 75: Ligne 75:
 ===== Fundamental Rules ===== ===== Fundamental Rules =====
  
-== RUL_GEN_001 Comments == +== RUL_GEN_001 Important Rule ==
-A comment is there to explain the code not to rephrase it.\\ +
-Comment shall not contradict the code, update the comment with the code. +
- +
-== RUL_GEN_002 Important Rule ==+
 <note tip> <note tip>
 If you don't understand why you should not modify a line, **DON'T MODIFY IT!**  If you don't understand why you should not modify a line, **DON'T MODIFY IT!** 
 </note> </note>
-== RUL_GEN_003 More Important Rule ==+ 
 +== RUL_GEN_002 More Important Rule ==
  
 Don't modify a line just to make it nicer, better, what ever justification you want, until there is a declared issue or an enhancement or task assigned to you linked with the line. Don't modify a line just to make it nicer, better, what ever justification you want, until there is a declared issue or an enhancement or task assigned to you linked with the line.
  
-== RUL_GEN_004 Mosy Important Rule ==+== RUL_GEN_004 Most Important Rule ==
 <note warning> <note warning>
 **In any case, Keep it simple**  **In any case, Keep it simple** 
 </note> </note>
 +
 +== RUL_GEN_005 Guru rule==
 +
 +Do what I say, Don't do what I do.
 +
 +===== Comment Rules =====
 +
 +== RUL_CMT_001 Comments ==
 +A comment is there to explain the code not to rephrase it.\\
 +Comment shall not contradict the code, update the comment with the code.
 +
 +== RUL_CMT_002 Doc Strings ==
 +Always use DocStrings for Files, Class and functions comment block.\\
 +
 +== RUL_CMT_004 DocString is for users ==
 +DocString section is for user of the element not for developper/maintainer. It shall explain how to use the class/function, not how it has been developped.
 +
 +== RUL_CMT_003 Maintainer comments ==
 +Use standard comment immediatly of SocString section for developper/maintainer comments explaining design trick of a class/function.
  
 ===== Coding Rules =====  ===== Coding Rules ===== 
 == RUL_COD_001 : Python version == == RUL_COD_001 : Python version ==
-Python 3.6 is the preferred Python version. If Python2 is required use Python 2.7.<latest>\\+Python 3.7 is the preferred Python version. If Python2 is required use Python 2.7.<latest>\\
  
  
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 == RUL_WRI_003 : Activate future features (Python2 only) == == RUL_WRI_003 : Activate future features (Python2 only) ==
-Make your Python2 code compliant with Python3 by inserting at least : 
  
-  from __future__ import unicode_literals+Make your Python2 code compliant with Python3 by inserting at least : (from [[https://linuxfr.org/news/python-pour-la-rentree-2019-partie-2-48277b5e-c1a0-441e-836a-5c9536c4a8d6|Python pour la rentrée 2019 — partie 2]]) 
 + 
 +  from __future__ import absolute_import 
 +  from __future__ import division
   from __future__ import print_function   from __future__ import print_function
 +  from __future__ import unicode_literals
 +  
 +  from builtins import *
 +  
 +  from future import standard_library
 +  standard_library.install_aliases()
 +
      
 == RUL_WRI_004 Indentation == == RUL_WRI_004 Indentation ==
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 ==== Strings ==== ==== Strings ====
 +
 == RUL_STR_01 bytes storage (was: str usage) == == RUL_STR_01 bytes storage (was: str usage) ==
 Python2: Use ''str'' only for internal 7 bits characters string or ''bytes'' storage\\ Python2: Use ''str'' only for internal 7 bits characters string or ''bytes'' storage\\
Ligne 129: Ligne 155:
  
 == RUL_STR_002 QString usage == == RUL_STR_002 QString usage ==
 +
 Use ''QString'' only for Qt API functions and methods, convert results as soon as possible to ''unicode'' to be compliant for Python functions. Use ''QString'' only for Qt API functions and methods, convert results as soon as possible to ''unicode'' to be compliant for Python functions.
  
 == RUL_STR_003 Use unicode == == RUL_STR_003 Use unicode ==
 +
 For all other strings use ''unicode'' only strings. For all other strings use ''unicode'' only strings.
  
 === Classes === === Classes ===
  
 +== RUL_CLS_001 Forget old-style class ==
 +
 +Python 2: Any class MUST inherit directly or indirectly from ``object``.
 +
 +== RUL_CLS_002 ==
 +
 +Use ``self`` to identify instance parameter and ``cls`` for class  related parameter.
 +
 +== RUL_CLS_003 ==
 +
 + 
  
python.1565369068.txt.gz · Dernière modification : 2019/08/09 18:44 de francois
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