【发布时间】:2013-04-16 10:03:05
【问题描述】:
我正在尝试从字符串中删除除“+”之外的所有内容
我正在使用这个:
phone = re.sub(r'[^+]', '', cleaned_data['phone_number'])
我也试过这个:
phone = re.sub(r'[^\+]', '', cleaned_data['phone_number'])
它因“无效的表达式”而失败
编辑:如果发现错误位于这些行中,则使用调试器
phone_patterns = [r'^0\d{9}$', r'^\+33\d{9}$']
for phone_pattern in phone_patterns:
if re.match(phone, phone_pattern):
.....
堆栈跟踪: 追溯:
File "/path/local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
115. response = callback(request, *callback_args, **callback_kwargs)
File "/path/request_quote/views.py" in new
12. if formset.is_valid():
File "/path/local/lib/python2.7/site-packages/django/forms/formsets.py" in is_valid
277. err = self.errors
File "/path/local/lib/python2.7/site-packages/django/forms/formsets.py" in errors
259. self.full_clean()
File "/path/local/lib/python2.7/site-packages/django/forms/formsets.py" in full_clean
297. self._errors.append(form.errors)
File "/path/local/lib/python2.7/site-packages/django/forms/forms.py" in _get_errors
117. self.full_clean()
File "/path/local/lib/python2.7/site-packages/django/forms/forms.py" in full_clean
273. self._clean_form()
File "/path/local/lib/python2.7/site-packages/django/forms/forms.py" in _clean_form
299. self.cleaned_data = self.clean()
File "/path/request_quote/forms.py" in clean
56. QuoteForm.COUNTRY_VALIDATORS[country](self, cleaned_data)
File "/path/request_quote/forms.py" in validate_fr
102. if re.match(phone, phone_pattern):
File "/path/lib/python2.7/re.py" in match
137. return _compile(pattern, flags).match(string)
File "/path/lib/python2.7/re.py" in _compile
242. raise error, v # invalid expression
Exception Type: error at /en/request_quote/new/
Exception Value: nothing to repeat
编辑: 错误来自开头的“+”应该转义但是如何?
编辑2: 非常愚蠢,但我做到了
re.match(string,pattern)
而不是
re.match(pattern,string)
【问题讨论】:
-
如果您想删除所有内容,为什么不直接使用
phone = '+'? -
无论如何,你的代码是有效的。发布完整的回溯并确保这是您正在运行的代码。
-
“类似这样的东西”?不,新的编辑仍然不会抛出您报告的错误(但它会为输入
"+1234"返回"+")。那么,请您发布您正在使用的实际正则表达式吗? -
固定类型 \D 而不是 \d
-
您仍然没有包含您正在使用的实际模式。字符串
r"[^\+\d]"可以完美地编译成正则表达式对象。
标签: regex python-2.7 regex-negation