用了几天的PyCharm，发现确实在编写Python代码上非常好用，但有一点体验不太好，就是代码编写时要按照PEP8代码风格编写，不然会有波浪线的警告信息。解决方法如下：

方法一：

将鼠标移到提示的地方，按alt+Enter，选择忽略（Ignore）这个错误即好。

方法二

打开：File - Settings…… - Editor - Inspections

在python下找到 PEP8 coding style violation，在右边下面的Ignore errors里可以添加忽略的警告信息ID，如下：

如E302就是忽略“expected 2 blank lines, found 0”这个警告（出现在我想给方法上面添加注释的时候）。

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警告信息对应的ID在http://pep8.readthedocs.io/en/latest/intro.html#configuration中可找到。

原文地址

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附录如下：

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
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()’
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()’