PyCharm代码风格警告问题
PyCharm使用的是PEP8代码风格，所以当出现不不符合PEP8代码风格便会出现警告信息
block comment should start with #
解决方法（以下是在Mac解决方法，其他平台类似）本文来源:Seakee.top. 未经允许不得转载.
方法一 使用PyCharm格式化代码
1、选中出现警告的代码块，使用快捷键option(alt)+command+L
2、也可以直接在选中代码后执行Code>>Reformat Code
方法二忽略警告
1、将鼠标移到提示的地方，按option(alt)+Enter，选择忽略（Ignore）这个错误即好。本文来源:Seakee.top. 未经允许不得转载.
2、打开PyCharm>>Preference>>Editor>>PEP 8 coding style violation,然后再下面Options添加要忽略的错误代码，最后OK就行。
警告信息对应的ID在http://pep8.readthedocs.io/en/latest/intro.html#configuration中可找到。
附录：错误代码
code sample message E1 Indentation E101 indentation contains mixed spaces and tabs E111 indentation is not a multiple of four E112 expected an indented block E113 unexpected indentation E114 indentation is not a multiple of four (comment) E115 expected an indented block (comment) E116 unexpected indentation (comment) E121 (*^) continuation line under-indented for hanging indent E122 (^) continuation line missing indentation or outdented E123 (*) closing bracket does not match indentation of opening bracket’s line E124 (^) closing bracket does not match visual indentation E125 (^) continuation line with same indent as next logical line E126 (*^) continuation line over-indented for hanging indent E127 (^) continuation line over-indented for visual indent E128 (^) continuation line under-indented for visual indent E129 (^) visually indented line with same indent as next logical line E131 (^) continuation line unaligned for hanging indent E133 (*) closing bracket is missing indentation E2 Whitespace E201 whitespace after ‘(‘ E202 whitespace before ‘)’ E203 whitespace before ‘:’ E211 whitespace before ‘(‘ E221 multiple spaces before operator E222 multiple spaces after operator E223 tab before operator E224 tab after operator E225 missing whitespace around operator E226 (*) missing whitespace around arithmetic operator E227 missing whitespace around bitwise or shift operator E228 missing whitespace around modulo operator E231 missing whitespace after ‘,’, ‘;’, or ‘:’ E241 (*) multiple spaces after ‘,’ E242 (*) tab after ‘,’ E251 unexpected spaces around keyword / parameter equals E261 at least two spaces before inline comment E262 inline comment should start with ‘# ‘ E265 block comment should start with ‘# ‘ E266 too many leading ‘#’ for block comment E271 multiple spaces after keyword E272 multiple spaces before keyword E273 tab after keyword E274 tab before keyword E275 missing whitespace after keyword E3 Blank line E301 expected 1 blank line, found 0 E302 expected 2 blank lines, found 0 E303 too many blank lines (3) E304 blank lines found after function decorator E305 expected 2 blank lines after end of function or class E306 expected 1 blank line before a nested definition E4 Import E401 multiple imports on one line E402 module level import not at top of file E5 Line length E501 (^) line too long (82 > 79 characters) E502 the backslash is redundant between brackets E7 Statement E701 multiple statements on one line (colon) E702 multiple statements on one line (semicolon) E703 statement ends with a semicolon E704 (*) multiple statements on one line (def) E711 (^) comparison to None should be ‘if cond is None:’ E712 (^) comparison to True should be ‘if cond is True:’ or ‘if cond:’ E713 test for membership should be ‘not in’ E714 test for object identity should be ‘is not’ E721 (^) do not compare types, use ‘isinstance()’ E722 do not use bare except, specify exception instead E731 do not assign a lambda expression, use a def E741 do not use variables named ‘l’, ‘O’, or ‘I’ E742 do not define classes named ‘l’, ‘O’, or ‘I’ E743 do not define functions named ‘l’, ‘O’, or ‘I’ E9 Runtime E901 SyntaxError or IndentationError E902 IOError W1 Indentation warning W191 indentation contains tabs W2 Whitespace warning W291 trailing whitespace W292 no newline at end of file W293 blank line contains whitespace W3 Blank line warning W391 blank line at end of file W5 Line break warning W503 (*) line break occurred before a binary operator W6 Deprecation warning W601 .has_key() is deprecated, use ‘in’ W602 deprecated form of raising exception W603 ‘<>’ is deprecated, use ‘!=’ W604 backticks are deprecated, use ‘repr()’
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