PEP-8 cheatsheet - http://wwd.ca/blog/2009/07/09/pe http://wwd.ca/blog/2009/07/09/pep-8-cheatsheet/ p-8-cheatsheet/ #! /usr/bin/en pthon # -"- coding: ut-8 -"$$$%his &odule's docstring su&&ar line.
l 3 A 3 2 3 4
%his is a &ulti-line docstring. Paragraphs are separated with blan( lines. )ines conor& to 79-colu&n li&it.
# so&e e=a&ples o how to wrap code to conor& to 79-colu&ns li&it:
*odule and pac(ages na&es should be short+ lower,case,with lower,case,with,underscores. ,underscores. ee http://www.pthon.org/de/peps/pep-0008/ http://www.pthon.org/de/peps/pep-0008/ or &ore PEP-8 details and http://wwd.ca/blog/2009/07/09/pe http://wwd.ca/bl og/2009/07/09/pep-8-cheatsheet/ p-8-cheatsheet/ or an up-to-date ersion o this cheatsheet. $$$
i&port os i&port s!s i&port so&e,third,part!,lib i&port so&e,other,third,part!,lib
de ,,init,, ,,init,, sel sel+ + width+ height+ color3 color 3'blac(' 'blac('+ + e&phasis3 e&phasis 3one one+ + highlight30 highlight 30: : i width i width 33 0 and and height height 33 0 and and B B color 33 'red' and and e&phasis e&phasis 33 'strong' or or B B highlight C A00 A00: : raise @alueError @alueError $sorr!+ !ou lose$ i width i width 33 0 and and height height 33 0 and and color color 33 'red' or e&phasis is one one: : raise @alueError @alueError $ don't thin( so -- alues are Ds Ds+ + Ds Ds$ $ D width+ height lob. lob .,,init,,sel ,,init,,sel+ + width+ height+ color+ e&phasis+ highlight # e&pt lines within ðod to enhance readabilit? no set rule
i&port !our,local,stu i&port &ore,local,stu i&port dont,i&port,two dont,i&port,two+ + &odules,in,one,line ,a,global,ar 3 2 ,b,global,ar 3 4
short,oo,dict 3 'loooooooooooooooooooong,ele&ent,na&e' 'loooooooooooooooooooong,ele&ent,na&e': : 'cat' 'cat'+ + 'other,ele&ent': 'other,ele&ent' : 'dog' 'dog'F F
# *P%1%!
# so it won't get i&ported b 'ro& oo i&port "'
long,oo,dict,with,&an!,ele&ents 3 'oo': 'oo' : 'cat' 'cat'+ + 'bar': 'bar' : 'dog' F
1,5%1% 3 'ugh.' # A e&pt line between in-class de'ns # 2 e&pt lines between top-leel uncs 6 classes
de so&e,unction: so&e,unction: pass class ooar ooar ob;ect ob;ect: : $$$
a 3 2 b 3 > ,internal,ariable 3 4 class, 3 'oo' # trailing underscore to aoid conlict with builtin # # # # #
this will trigger na&e &angling to urther discourage use ro& outside this is also er useul i ou intend our class to be subclassed+ and the children &ight also use the sa&e ar na&e or soðing else? e.g. or si&ple ariables li(e 'a' aboe. a&e &angling will ensure that "our" a and the children's a will not collide.
,,internal,ar 3 >
,,nooooooodontdoit,, 3 0
# E@E use double leading and trailing underscores or our own na&es
# don't call anthing:
de oo,ðod oo,ðod sel sel+ + =+ !3 ! 3one one: : $$$*ethod and unction na&es are lower,case,wit lower,case,with,underscores. h,underscores. 1lwas use sel as irst arg. $$$ i = i = 33 >: # = is blue G33 HEH) A-liner co&&ent =+ ! 3 !+ = # inerse = and G33 HE)E 5**E%
dictI dict I'(e!' '(e!'J J 3 dict dictIinde=J Iinde=J 3 =: 2+ 'cat' 'cat': : 'not a dog'F dog' F c 3 a 6 b " a - b Kclassðod de bar barcls: cls: $$$Hse cls!$$$
pass # a 79-char ruler: #24>LM789AA24>LM7892A24>LM7894A #24>LM789AA24>L M7892A24>LM7894A24>LM789>A24>LM7 24>LM789>A24>LM789LA24>LM789MA24 89LA24>LM789MA24>LM7897A24>LM789 >LM7897A24>LM789
