python3.3 django错误处理“sre_constants.error: nothing to repeat”

python3.3 django错误处理“sre_constants.error: nothing to repeat”

python3.3后对于多行正则表达式匹配好像做了点修改，不能匹配非转义字符的多行 正则表达式了。

报错如下：

>>>
Traceback (most recent call last):
File "", line 420, in run_nodebug
File "<模块1>", line 48, in
File "<模块1>", line 31, in main
File "C:\Python33\lib\re.py", line 214, in compile
return _compile(pattern, flags)
File "C:\Python33\lib\re.py", line 281, in _compile
p = sre_compile.compile(pattern, flags)
File "C:\Python33\lib\sre_compile.py", line 498, in compile
code = _code(p, flags)
File "C:\Python33\lib\sre_compile.py", line 483, in _code
_compile(code, p.data, flags)
File "C:\Python33\lib\sre_compile.py", line 75, in _compile
elif _simple(av) and op is not REPEAT:
File "C:\Python33\lib\sre_compile.py", line 362, in _simple
raise error("nothing to repeat")
sre_constants.error: nothing to repeat
>>>

根据提示我们需要自己修改下“C:\Python33\Lib\html\parser.py”文件的第56行中locatestarttagend_tolerant的赋值

修改方法就是将原来的多行使用转义字符，变换成1行

<喎?http://www.Bkjia.com/kf/ware/vc/" target="_blank" class="keylink">vcD4KPHByZSBjbGFzcz0="brush:java;">##locatestarttagend_tolerant = re.compile(r""" ## <[a-zA-Z][-.a-zA-Z0-9:_]* # tag name ## (?:[\s/]* # optional whitespace before attribute name ## (?:(?<=['"\s/])[^\s/>][^\s/=>]* # attribute name ## (?:\s*=+\s* # value indicator ## (?:'[^']*' # LITA-enclosed value ## |"[^"]*" # LIT-enclosed value ## |(?!['"])[^>\s]* # bare value ## ) ## (?:\s*,)* # possibly followed by a comma ## )?(?:\s|/(?!>))* ## )* ## )? ## \s* # trailing whitespace ##""", re.VERBOSE) locatestarttagend_tolerant = re.compile(r"""\n <[a-zA-Z][-.a-zA-Z0-9:_]* # tag name\n (?:[\s/]* # optional whitespace before attribute name\n (?:(?<=['"\s/])[^\s/>][^\s/=>]* # attribute name\n (?:\s*=+\s* # value indicator\n (?:'[^']*' # LITA-enclosed value\n |"[^"]*" # LIT-enclosed value\n |(?!['"])[^>\s]* # bare value\n )\n (?:\s*,)* # possibly followed by a comma\n )?(?:\s|/(?!>))*\n )*\n )?\n \s* # trailing whitespace\n""", re.VERBOSE)
对于错误理解的有点问题，应该还是正则表达式写的有问题，天晚了，改天在搞