{"id":603,"date":"2017-12-05T18:15:03","date_gmt":"2017-12-05T10:15:03","guid":{"rendered":"http:\/\/cflin.com\/wordpress\/?p=603"},"modified":"2017-12-05T18:20:49","modified_gmt":"2017-12-05T10:20:49","slug":"pep8-python%e7%b7%a8%e7%a2%bc%e8%a6%8f%e7%af%84%e6%89%8b%e5%86%8a","status":"publish","type":"post","link":"https:\/\/cflin.com\/wordpress\/603\/pep8-python%e7%b7%a8%e7%a2%bc%e8%a6%8f%e7%af%84%e6%89%8b%e5%86%8a","title":{"rendered":"PEP8 Python \u7de8\u78bc\u898f\u7bc4\u624b\u518a"},"content":{"rendered":"

PEP 8 \u4ecb\u7d39<\/h1>\n

PEP8<\/a>\u00a0\u662f Python \u793e\u7fa4\u5171\u901a\u7684\u98a8\u683c\u6307\u5357\uff0c\u4e00\u958b\u59cb\u662f Python \u4e4b\u7236 Guido van Rossum \u81ea\u5df1\u7684\u64b0\u78bc\u98a8\u683c\uff0c\u6162\u6162\u5f8c\u4f86\u6f14\u8b8a\u81f3\u4eca\uff0c\u76ee\u7684\u5728\u65bc\u5e6b\u52a9\u958b\u767c\u8005\u5beb\u51fa\u53ef\u8b80\u6027\u9ad8\u4e14\u98a8\u683c\u4e00\u81f4\u7684\u7a0b\u5f0f\u3002\u8a31\u591a\u958b\u6e90\u8a08\u756b\uff0c\u4f8b\u5982\u00a0Django<\/a>\u00a0\u3001\u00a0OpenStack<\/a>\u7b49\u90fd\u662f\u4ee5 PEP8 \u70ba\u57fa\u790e\u518d\u52a0\u4e0a\u81ea\u5df1\u7684\u98a8\u683c\u5efa\u8b70\u3002<\/p>\n

\u7a0b\u5f0f\u78bc\u7de8\u6392 (Code lay-out)<\/h2>\n

\u9019\u908a\u5217\u51faPEP8\u88e1\u9762\u7684\u91cd\u9ede\uff0c\u6709\u8208\u8da3\u53ef\u4ee5\u76f4\u63a5\u770b\u5b98\u65b9\u539f\u6587\u7684\u6587\u4ef6\u6703\u66f4\u6e05\u695a\u4e00\u4e9b\u3002<\/p>\n

\u7e2e\u6392 (Indentation)<\/strong>
\n\u6bcf\u5c64\u7e2e\u6392\u4f7f\u7528 4 \u500b\u7a7a\u683c<\/p>\n

\u65b7\u884c\u98a8\u683c<\/strong>
\n\u6b63\u78ba\uff1a
\n# \u65b7\u884c\u9996\u5b57\u6bcd\u8207\u958b\u982d\u7684\u62ec\u865f\u5782\u76f4\u5c0d\u9f4a.<\/p>\n

\r\nfoo = long_function_name(var_one, var_two,\r\n                         var_three, var_four)\r\n<\/pre>\n
# \u5782\u76f4\u7e2e\u6392\uff0c\u9996\u884c\u4e0d\u80fd\u6709\u53c3\u6578.<\/p>\n
\r\ndef long_function_name(\r\n        var_one, var_two, var_three,\r\n        var_four):\r\n    print(var_one)\r\n<\/pre>\n
# \u5782\u76f4\u7e2e\u6392\uff0c\u5f8c\u9762\u9084\u6709\u5176\u5b83\u4ee3\u78bc\u6642\uff0c\u9700\u8981\u6dfb\u52a0\u4e00\u5c64\u984d\u5916\u7684\u7e2e\u6392\u52a0\u4ee5\u5340\u5225\uff1a<\/p>\n
\r\nfoo = long_function_name(\r\n    var_one, var_two,\r\n    var_three, var_four)\r\n<\/pre>\n
\u932f\u8aa4\uff1a
\n# \u5782\u76f4\u7e2e\u6392\u65b9\u5f0f\u9996\u884c\u4e0d\u80fd\u6709\u5f15\u6578<\/p>\n
\r\nfoo = long_function_name(var_one, var_two,\r\n    var_three, var_four)\r\n<\/pre>\n
# \u5782\u76f4\u7e2e\u6392\uff0c\u9996\u884c\u4e0d\u80fd\u6709\u53c3\u6578; \u5f8c\u9762\u9084\u6709\u5176\u5b83\u4ee3\u78bc\u90e8\u5206\u6642\uff0c\u65b7\u884c\u8981\u6dfb\u52a0\u4e00\u5c64\u7e2e\u9032\uff0c\u4f7f\u5176\u8207\u5176\u5b83\u4ee3\u78bc\u90e8\u5206\u80fd\u5340\u5225\u958b\u4f86<\/p>\n
\r\ndef long_function_name(\r\n    var_one, var_two, var_three,\r\n    var_four):\r\n    print(var_one)\r\n<\/pre>\n
if \u689d\u4ef6\u65b7\u884c<\/strong>
\nif (<\/span> \u525b\u597d\u6709 4 \u500b\u5b57\u7b26\uff0c\u76f8\u7576\u65bc\u4e00\u5c64\u7e2e\u6392\u3002
\n\u5c0d\u65bc if \u689d\u4ef6\u65b7\u884c\uff0c\u4ee5\u4e0b\u5e7e\u7a2e\u98a8\u683c\u90fd\u53ef\u4ee5\uff1a
\n\u6c92\u6709\u984d\u5916\u7684\u7e2e\u6392<\/p>\n
\r\nif (this_is_one_thing and\r\n    that_is_another_thing):\r\n    do_something()\r\n<\/pre>\n
\u6dfb\u52a0\u8a3b\u91cb\u52a0\u4ee5\u5340\u5206<\/p>\n
\r\n# Add a comment, which will provide some distinction in editors\r\n# supporting syntax highlighting.\r\nif (this_is_one_thing and\r\n    that_is_another_thing):\r\n    # Since both conditions are true, we can frobnicate.\r\n    do_something()\r\n<\/pre>\n
\u6dfb\u52a0\u984d\u5916\u7684\u7e2e\u6392\u52a0\u4ee5\u5340\u5206<\/p>\n
\r\n# Add some extra indentation on the conditional continuation line.\r\nif (this_is_one_thing\r\n        and that_is_another_thing):\r\n    do_something()\r\n<\/pre>\n
\u591a\u884c\u7684\u62ec\u865f<\/strong><\/h3>\n
\u62ec\u865f\u7d50\u675f\u7b26\u8207\u6700\u5f8c\u884c\u7684\u9996\u5b57\u7b26\u5c0d\u9f4a\uff0c\u5982\uff1a<\/p>\n
\r\nmy_list = [\r\n    1, 2, 3,\r\n    4, 5, 6,\r\n    ]\r\n\r\nresult = some_function_that_takes_arguments(\r\n    'a', 'b', 'c',\r\n    'd', 'e', 'f',\r\n    )\r\n<\/pre>\n
\u62ec\u865f\u7d50\u675f\u7b26\u8207\u9996\u884c\u7684\u9996\u5b57\u7b26\u5c0d\u9f4a, \u5982\uff1a<\/p>\n
\r\nmy_list = [\r\n    1, 2, 3,\r\n    4, 5, 6,\r\n]\r\nresult = some_function_that_takes_arguments(\r\n    'a', 'b', 'c',\r\n    'd', 'e', 'f',\r\n)\r\n<\/pre>\n
\u4e0a\u9762\u5169\u7a2e\u6392\u7248\u7684\u65b9\u5f0f\u90fd\u53ef\u4ee5<\/p>\n
\u4f7f\u7528Tab\u9084\u662f\u7a7a\u683c\u7e2e\u6392<\/strong><\/h3>\n
\u7528\u7a7a\u683c<\/p>\n
\u6bcf\u884c\u6700\u9577\u9577\u5ea6<\/strong><\/h4>\n
\u6240\u6709\u884c\u90fd\u4e0d\u8d85\u904e 80 \u500b\u5b57\u7b26<\/p>\n
\u9650\u5236\u7de8\u8f2f\u5668\u8996\u7a97\u7684\u5bec\u5ea6\uff0c\u4f7f\u80fd\u4e26\u6392\u540c\u6642\u6253\u958b\u591a\u500b\u6587\u4ef6\u3002
\n\u8a2d\u7f6e\u7de8\u8f2f\u5668\u5bec\u5ea6(set width to 80)\uff0c\u4f86\u907f\u514d wrapping
\n\u5c0d\u65bc\u8f03\u5c11\u7d50\u69cb\u9650\u5236\u7684\u9577\u6587\u672c\uff08\u5982 docstrings \u6216\u8a3b\u91cb\uff09\uff0c\u884c\u9577\u61c9\u9650\u5236\u70ba 72 \u500b\u5b57\u7b26\u3002
\n\u5982\u679c\u5718\u968a\u6210\u54e1\u90fd\u540c\u610f\u4f7f\u7528\u9577\u884c\uff0c\u5247\u53ef\u4ee5\u5c07\u884c\u9577\u589e\u52a0\u5230\u4e0d\u8d85\u904e 100 \u500b\u5b57\u7b26\uff0c\u4f46\u662f docstrings \u548c\u8a3b\u91cb\u9084\u5fc5\u9808\u70ba 72 \u500b\u5b57\u7b26\u3002<\/p>\n
\u6709\u62ec\u865f\u7684\u9577\u884c\u53ef\u4ee5\u7528 implicit continuation \u4f86\u65b7\u884c\uff0c\u5176\u5b83\u7684\u53ef\u4ee5\u7528 \\ \u4f86\u65b7\u884c\uff0c\u5982\uff1a<\/p>\n
\r\nwith open('\/path\/to\/some\/file\/you\/want\/to\/read') as file_1, \\\r\n     open('\/path\/to\/some\/file\/being\/written', 'w') as file_2:\r\n    file_2.write(file_1.read())\r\n<\/pre>\n
\u64cd\u4f5c\u7b26\u8981\u548c\u64cd\u4f5c\u6578\u5728\u4e00\u8d77<\/strong><\/h4>\n
# \u63a8\u85a6\u7684\u6b63\u78ba\u7684\u98a8\u683c\uff0c\u9019\u6a23\u5f88\u5bb9\u6613\u5c07\u64cd\u4f5c\u7b26\u8207\u64cd\u4f5c\u6578\u5339\u914d\uff1a<\/p>\n
\r\nincome = (gross_wages\r\n          + taxable_interest\r\n          + (dividends - qualified_dividends)\r\n          - ira_deduction\r\n          - student_loan_interest)\r\n<\/pre>\n
# \u9019\u7a2e\u98a8\u683c\u73fe\u4eca\u5df2\u4e0d\u63a8\u85a6\u4f7f\u7528\u4e86\uff1a<\/p>\n
\r\nincome = (gross_wages +\r\n          taxable_interest +\r\n          (dividends - qualified_dividends) -\r\n          ira_deduction -\r\n          student_loan_interest)\r\n<\/pre>\n
\u7a7a\u884c\u5206\u9694<\/strong><\/h4>\n
\u6a21\u7d44\u4e2d\u6700\u9802\u5c64\u7684\u51fd\u6578\u548c\u985e\u5b9a\u7fa9\u90fd\u8981\u7528\u5169\u884c\u7a7a\u884c\u5206\u9694
\n\u985e\u5225\u4e2d\u7684\u65b9\u6cd5\u5b9a\u7fa9\u7528\u55ae\u884c\u5206\u9694
\n\u8981\u628a\u4e00\u7d44\u76f8\u95dc\u7684\u51fd\u6578\u5206\u7d44\uff0c\u53ef\u4ee5\u7528\u4e00\u4e9b\u984d\u5916\u7684\u7a7a\u884c
\n\u51fd\u6578\u4e2d\u7684\u908f\u8f2f\u5340\u584a\u53ef\u4ee5\u52a0\u7a7a\u884c\u4f86\u5206\u9694<\/p>\n
\u539f\u59cb\u78bc\u7684\u7de8\u78bc<\/strong><\/h4>\n
Python \u6838\u5fc3\u6a21\u7d44\u6587\u4ef6\u7684\u7de8\u78bc\u90fd\u5fc5\u9808\u7528 UTF-8\uff08Python2 \u662f ASCII)\u3002
\n\u4f7f\u7528\u9ed8\u8a8d\u7684\u7de8\u78bc\u6642\uff08Python3: UTF-8\uff0cPython2: ASCII)\uff0c\u4e0d\u80fd\u4f7f\u7528\u7de8\u78bc\u8072\u660e
\n\u6a19\u6e96\u5eab\u4e2d\uff0c\u53ea\u6709\u6e2c\u8a66\u3001\u4f5c\u8005\u540d\u624d\u80fd\u4f7f\u7528\u975e\u9ed8\u8a8d\u7684\u7de8\u78bc\uff0c\u5176\u5b83\u60c5\u6cc1\u4e0b\u7684\u975e ASCII \u5b57\u7b26\u7528 \\x, \\u, \\u, \\N \u8868\u793a\u6cd5\u8868\u793a\u3002<\/p>\n
Import<\/strong><\/h4>\n
\u6bcf\u884c import \u53ea\u5c0e\u5165\u4e00\u500b\u6a21\u7d44\uff1a
\n# \u6b63\u78ba:
\nimport os
\nimport sys
\n# \u932f\u8aa4\uff1a
\nimport sys, os
\n# \u6b63\u78ba\uff1a\u540c\u4e00\u6a21\u7d44\u4e2d\u7684\u5167\u5bb9\u53ef\u4ee5\u5728\u540c\u4e00\u884c\u5c0e\u5165
\nfrom subprocess import Popen, PIPE<\/p>\n
import \u8a9e\u53e5\u8981\u5728\u6587\u4ef6\u7684\u524d\u9762\uff0c\u5728\u6a21\u7d44\u8a3b\u91cb\u53ca docstrings \u4e4b\u5f8c\uff0c\u5728\u6a21\u7d44\u5168\u57df\u8b8a\u6578\u548c\u5e38\u6578\u5b9a\u7fa9\u4e4b\u524d\u3002
\nimport \u5206\u7d44\u53ca\u5c0e\u5165\u9806\u5e8f\uff0c\u6bcf\u500b\u5206\u7d44\u4e4b\u9593\u7528\u4e00\u884c\u7a7a\u884c\u5206\u9694 1. \u6a19\u6e96\u5eab 2. \u76f8\u95dc\u7b2c\u4e09\u65b9\u5eab 3. \u672c\u5730\u61c9\u7528\/\u5eab\u7684\u7279\u6b8a\u5c0e\u5165
\n\u63a8\u85a6\u4f7f\u7528\u7d55\u5c0d\u5c0e\u5165\uff0c\u5982\uff1a
\nimport mypkg.sibling
\nfrom mypkg import sibling
\nfrom mypkg.sibling import example<\/p>\n
\u5728\u6bd4\u8f03\u8986\u96dc\u7684\u5957\u4ef6\u7d44\u6210\u4e2d\uff0c\u4e5f\u53ef\u4ee5\u7528\u986f\u5f0f\u7684\u76f8\u5c0d\u5c0e\u5165\uff0c\u5982\uff1a
\nfrom . import sibling
\nfrom .sibling import example
\n\u5f9e\u4e00\u500b\u6a21\u584a\u4e2d\u5c0e\u5165\u4e00\u500b\u985e\u5225\u6642\uff0c\u8981\u986f\u793a\u62fc\u5beb\u51fa\u985e\u5225\u540d\uff0c\u5982\uff1a
\nfrom myclass import MyClass
\nfrom foo.bar.yourclass import YourClass<\/p>\n
\u5982\u679c\u8207\u672c\u5730\u540d\u7a31\u885d\u7a81\uff0c\u53ef\u4ee5\u5148\u5c0e\u5165\u6a21\u7d44\uff1a
\nimport myclass
\nimport foo.bar.yourclass
\n\u7136\u5f8c\u4f7f\u7528\uff1a\"myclass.MyClass\" \u548c “foo.bar.yourclass.YourClass\"\u3002
\n\u61c9\u8a72\u907f\u514d\u4f7f\u7528 from <module> import *
\n\u6a21\u7d44\u5c64\u7d1a\u7684\u7279\u6b8a\u540d\u7a31\uff08\u5982__all__)\u7684\u4f4d\u7f6e\uff1a
\n\u5fc5\u9808\u5728\u6a21\u7d44\u7684 docstrings \u6216\u8a3b\u91cb\u4e4b\u5f8c\uff0c\u4f46\u5728\u4efb\u4f55\u7684 import \u8a9e\u53e5\u4e4b\u524d\u3002from __future__ \u6bd4\u8f03\u7279\u6b8a\uff0cPython \u5f37\u5236\u8a72\u8a9e\u53e5\u5fc5\u9808\u5728 docstrings \u6216\u8a3b\u91cb\u4e4b\u5f8c\uff0c\u56e0\u6b64\u98a8\u683c\u5982\u4e0b\uff1a<\/p>\n
\r\n"""This is the example module.\r\n\r\nThis module does stuff.\r\n"""\r\n\r\nfrom __future__ import barry_as_FLUFL\r\n\r\n__all__ = ['a', 'b', 'c']\r\n__version__ = '0.1'\r\n__author__ = 'Cardinal Biggles'\r\n\r\nimport os\r\nimport sys\r\n<\/pre>\n
\u5b57\u7b26\u5f15\u865f (String Quotes)<\/strong><\/h4>\n
\u55ae\u5f15\u865f\u548c\u96d9\u5f15\u865f\u7684\u529f\u80fd\u662f\u7b49\u540c\u7684\u3002
\n\u5c0d\u65bc\u591a\u884c\u5b57\u7b26\u4e32\uff0c\u61c9\u8a72\u7528\u96d9\u5f15\u865f\u5b57\u7b26\u5f62\u5f0f\u7684\u4e09\u5f15\u865f\"\"\"\uff0c\u4ee5\u4fbf\u8207 PEP257 \u4e2d\u7684 docstrings \u898f\u7bc4\u517c\u5bb9<\/p>\n
\u8868\u9054\u5f0f\u548c\u8a9e\u53e5\u4e2d\u7684\u7a7a\u683c (Whitespace in Expressions and Statements)<\/strong><\/h4>\n
()\u3001[]\u3001{} \u7b49\u62ec\u865f\u5167\u4e0d\u8981\u591a\u9918\u7684\u7a7a\u683c\uff0c\u5982\uff1a
\n# \u6b63\u78ba\uff1a
\nspam(ham[1], {eggs: 2})
\n# \u932f\u8aa4\uff1a
\nspam( ham[ 1 ], { eggs: 2 } )
\n,\u3001;\u3001: \u4e4b\u524d\u4e0d\u8981\u6709\u7a7a\u683c\uff0c\u5982\uff1a
\n# \u6b63\u78ba\uff1a
\nif x == 4: print x, y; x, y = y, x
\n# \u932f\u8aa4\uff1a
\nif x == 4 : print x , y ; x , y = y , x
\n\u5728 slice \u8a9e\u53e5\u4e2d\u7684 :\u5be6\u969b\u4e0a\u662f\u4e00\u500b\u4e8c\u5143\u64cd\u4f5c\u7b26\uff0c\u56e0\u6b64\u5176\u5169\u5074\u7684\u7a7a\u683c\u6578\u5fc5\u9808\u76f8\u540c; \u4f46\u7576\u7121 slice \u53c3\u6578\u6642\uff0c\u5169\u5074\u7684\u7a7a\u683c\u53ef\u4ee5\u90fd\u7701\u7565\uff0c\u5982\uff1a
\n# \u4ee5\u4e0b\u662f\u6b63\u78ba\u7684\u98a8\u683c\uff1a
\nham[1:9], ham[1:9:3], ham[:9:3], ham[1::3], ham[1:9:]
\nham[lower:upper], ham[lower:upper:], ham[lower::step]
\nham[lower+offset : upper+offset]
\nham[: upper_fn(x) : step_fn(x)], ham[:: step_fn(x)]
\nham[lower + offset : upper + offset]
\n# \u4ee5\u4e0b\u662f\u932f\u8aa4\u7684\u98a8\u683c\uff1a
\nham[lower + offset:upper + offset]
\nham[1: 9], ham[1 :9], ham[1:9 :3]
\nham[lower : : upper]
\nham[ : upper]
\n\u51fd\u6578\u8abf\u7528\u7684 () \u53ca\u7d22\u5f15\u7684 [] \u524d\u4e0d\u8981\u52a0\u7a7a\u683c\uff0c\u5982\uff1a
\n# \u6b63\u78ba\u98a8\u683c\uff1a
\nspam(1)
\ndct[‘key’] = lst[index]
\n# \u932f\u8aa4\u98a8\u683c\uff1a
\nspam (1)
\ndct [‘key’] = lst [index]
\n\u4e0d\u8981\u5728\u8ce6\u503c\u8a9e\u53e5\u4e2d\u52a0\u5165\u984d\u5916\u7684\u7a7a\u683c\u4f86\u5c0d\u9f4a\uff0c\u5982\uff1a
\n# \u6b63\u78ba\u7684\u98a8\u683c\uff1a
\nx = 1
\ny = 2
\nlong_variable = 3
\n# \u932f\u8aa4\u7684\u98a8\u683c:
\nx = 1
\ny = 2
\nlong_variable = 3<\/p>\n
\u5176\u5b83\u63a8\u85a6\u98a8\u683c<\/h4>\n
\u4efb\u4f55\u884c\u7684\u884c\u5c3e\u90fd\u4e0d\u8981\u6709\u7a7a\u767d\u7b26\u3002
\n\u5728\u4e8c\u5143\u64cd\u4f5c\u7b26\u865f\u5169\u5074\u4e00\u822c\u90fd\u8981\u52a0\u4e00\u500b\u7a7a\u683c\uff0c\u4e00\u822c\u7684\u4e8c\u5143\u64cd\u4f5c\u7b26\u865f\u5982\uff1a
\n\u8ce6\u503c: =, +=, -=
\n\u6bd4\u8f03\uff1a==, <, >, !=, <>, <=, >=, in, not in, is, is not
\n\u5e03\u6797\u64cd\u4f5c\uff1a and, or, not
\n\u5728\u5206\u512a\u5148\u7d1a\u7684\u8868\u9054\u5f0f\u4e2d\uff0c\u5728\u6700\u4f4e\u512a\u5148\u7d1a\u7684\u64cd\u4f5c\u7b26\u5169\u5074\u52a0\u4e00\u500b\u7a7a\u683c\uff0c\u4f46\u81f3\u591a\u53ea\u80fd\u52a0\u4e00\u500b\u7a7a\u683c\uff0c\u5982\uff1a
\n# \u6b63\u78ba\u7684\u98a8\u683c\uff1a
\nx = x*2 – 1
\nhypot2 = x*x + y*y
\nc = (a+b) * (a-b)
\n# \u932f\u8aa4\u7684\u98a8\u683c\uff1a
\nx = x * 2 – 1
\nhypot2 = x * x + y * y
\nc = (a + b) * (a – b)
\n\u5728\u95dc\u9375\u5b57\u53c3\u6578\u548c\u9ed8\u8a8d\u53c3\u6578\u503c\u4e2d\u7684 = \u5169\u5074\u4e0d\u8981\u52a0\u7a7a\u683c<\/strong>\uff0c\u5982\uff1a
\n# \u6b63\u78ba\u7684\u98a8\u683c\uff1a
\ndef complex(real, imag=0.0):
\nreturn magic(r=real, i=imag)
\n\u932f\u8aa4\u7684\u98a8\u683c\uff1a
\ndef complex(real, imag = 0.0):
\nreturn magic(r = real, i = imag)
\n\u51fd\u6578\u8a3b\u89e3\u4e2d\u7684 : \u524d\u4e0d\u8981\u52a0\u7a7a\u683c\uff0c\u9019\u7b26\u5408 : \u7684\u5e38\u898f\u98a8\u683c\uff0c\u4f46\u662f -> \u5169\u5074\u8981\u52a0\u7a7a\u683c<\/strong>\uff0c\u5982\uff1a
\n# \u6b63\u78ba\u7684\u98a8\u683c\uff1a
\ndef munge(input: AnyStr): …
\ndef munge() -> AnyStr: …
\n# \u932f\u8aa4\u7684\u98a8\u683c\uff1a
\ndef munge(input:AnyStr): …
\ndef munge()->PosInt: …
\n\u53c3\u6578\u8a3b\u89e3\u4e2d\uff0c\u5982\u679c\u8a3b\u89e3\u7684\u53c3\u6578\u6709\u9ed8\u8a8d\u503c\uff0c\u6307\u5b9a\u9ed8\u8a8d\u503c\u7684 = \u5169\u5074\u8981\u52a0\u7a7a\u683c<\/strong>\uff0c\u5982\uff1a
\n# \u6b63\u78ba\u7684\u98a8\u683c\uff1a
\ndef munge(sep: AnyStr = None): …
\ndef munge(input: AnyStr, sep: AnyStr = None, limit=1000): …
\n# \u932f\u8aa4\u7684\u98a8\u683c\uff1a
\ndef munge(input: AnyStr=None): …
\ndef munge(input: AnyStr, limit = 1000): …<\/p>\n
\u4e0d\u8981\u5c07\u591a\u689d\u8a9e\u53e5\u7d44\u5408\u5728\u4e00\u884c\u4e2d<\/strong>\uff0c\u5982\uff1a
\n# \u6b63\u78ba\u7684\u98a8\u683c\uff1a
\nif foo == ‘blah’:
\ndo_blah_thing()
\ndo_one()
\ndo_two()
\ndo_three()
\n# \u932f\u8aa4\u98a8\u683c\uff1a
\nif foo == ‘blah’: do_blah_thing()
\ndo_one(); do_two(); do_three()<\/p>\n
# \u5982\u679c if\/for\/while \u5340\u584a\u5167\u7684\u7a0b\u5f0f\u78bc\u5f88\u5c11\uff0c\u7d44\u5408\u5728\u4e00\u884c\u6709\u6642\u9084\u662f\u53ef\u4ee5\u63a5\u53d7\u7684
\n# \u4f46\u662f\u4e0d\u63a8\u85a6\uff0c\u5982\uff1a
\nif foo == ‘blah’: do_blah_thing()
\nfor x in lst: total += x
\nwhile t < 10: t = delay()
\n# \u4f46\u662f\u5728\u6709\u591a\u6bb5\u8a9e\u53e5\u6642\uff0c\u7d55\u5c0d\u4e0d\u80fd\u9019\u6a23\uff0c\u5982\uff1a
\nif foo == ‘blah’: do_blah_thing()
\nelse: do_non_blah_thing()<\/p>\n
try: something()
\nfinally: cleanup()<\/p>\n
do_one(); do_two(); do_three(long, argument,
\nlist, like, this)<\/p>\n
if foo == ‘blah’: one(); two(); three()<\/p>\n
\u8a3b\u89e3 (Comments)<\/strong><\/h4>\n
\u8a3b\u89e3\u5167\u5bb9\u5fc5\u9808\u8981\u548c\u7a0b\u5f0f\u78bc\u76f8\u95dc\uff01
\n\u8a3b\u89e3\u61c9\u8a72\u662f\u5b8c\u6574\u7684\u8a9e\u53e5\uff0c\u9996\u5b57\u6bcd\u4e00\u822c\u5927\u5beb(\u82f1\u6587)\uff0c\u4e00\u822c\u8981\u6709\u53e5\u865f\u3002
\n\u8a3b\u89e3\u5f88\u77ed\u6642\u53e5\u865f\u53ef\u4ee5\u7701\u7565\u3002
\n\u5340\u584a\u8a3b\u89e3\u4e00\u822c\u7531\u591a\u500b\u6bb5\u843d\u7d44\u6210\u3002\u7528\u82f1\u6587\u5beb\u8a3b\u89e3<\/p>\n
\u5340\u584a\u8a3b\u89e3 (Block Comments)<\/strong><\/h4>\n
\u6bcf\u884c\u7528 # \u53ca\u4e00\u500b\u7a7a\u683c\u958b\u59cb\uff0c\u5982 #
\n\u6bb5\u843d\u7528\u4e00\u500b\u53ea\u6709 # \u7684\u884c\u5206\u9694<\/p>\n
\u884c\u5167\u8a3b\u89e3 (Inline Comments)<\/strong><\/h4>\n
\u8a3b\u89e3\u8207\u8a9e\u53e5\u5167\u5bb9\u81f3\u5c11\u7528\u5169\u500b\u7a7a\u683c\u5206\u958b\uff0c\u8a3b\u89e3\u7528 # \u52a0\u4e00\u500b\u7a7a\u683c\u958b\u59cb
\n# \u4e0d\u8981\u50cf\u4e0b\u9762\u9019\u6a23\uff0c\u8a3b\u89e3\u5167\u5bb9\u6c92\u6709\u5fc5\u8981
\nx = x + 1 # Increment x
\n# \u4f46\u662f\u6709\u6642\uff0c\u5982\u4e0b\u9762\u7684\u8a3b\u89e3\u6703\u5f88\u6709\u7528
\nx = x + 1 # Compensate for border<\/p>\n
\u6587\u4ef6\u5b57\u4e32 (Documentation Strings)<\/h4>\n
\u516c\u958b\u7684\u6a21\u7d44\u3001\u51fd\u6578\u3001\u985e\u53ca\u65b9\u6cd5\u90fd\u61c9\u8a72\u6709\u6587\u4ef6\u5b57\u4e32\uff0c\u800c\u975e\u516c\u958b\u7684\u65b9\u6cd5\u53ef\u4ee5\u7528\u8a3b\u89e3\u4f86\u4ee3\u66ff\uff0c\u4e14\u8a3b\u89e3\u653e\u7f6e\u5728 def \u884c\u4e4b\u5f8c\u3002
\n\u591a\u884c\u7684\u6587\u4ef6\u5b57\u4e32\uff0c\u7d50\u675f\u7b26\u865f\u8981\u81ea\u6210\u4e00\u884c\uff0c\u5982\uff1a<\/p>\n
\r\n"""Return a foobang\r\n\r\nOptional plotz says to frobnicate the bizbaz first.\r\n"""\r\n<\/pre>\n
\u55ae\u884c\u7684\u6587\u4ef6\u5b57\u4e32\uff0c\u7d50\u675f\u7b26\u865f\u548c\u5167\u5bb9\u653e\u5728\u540c\u4e00\u884c<\/p>\n
\u547d\u540d (Naming Conventions)<\/strong><\/h4>\n
\u6c92\u6709\u63a8\u85a6\u7684\u98a8\u683c\uff0c\u4f46\u662f\u5225\u4eba\u8981\u80fd\u5f9e\u4f60\u7684\u7a0b\u5f0f\u78bc\u4e2d\u770b\u51fa\u4f60\u7528\u7684\u662f\u4ec0\u9ebd\u98a8\u683c\uff0c\u5e38\u7528\u7684\u98a8\u683c\u5982\u4e0b\uff1a<\/p>\n