[問題] Django form的問題
小的在trace前人遺留下來的程式碼
看到Django forms.py的地方
程式碼如下
我有一個地方不解的是下面這一行code
mail = forms.EmailField(label=_("Email"))
我的問題是label=_("Email")
這裏不是只要用label="Email"就好了
前人為啥要寫成label=_("Email")？
然後我一般的python shell try一下label=_("Email")
得到如下的結果
>>> label=_("Email")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name '_' is not defined
label=_("Email")到底在Django的form裡面是表示啥啊？
class ResetPasswordForm(forms.Form):
mail = forms.EmailField(label=_("Email"))
def clean_mail(self):
mail = self.cleaned_data['mail']
if mail:
try:
user = User.objects.get(email=mail)
except User.DoesNotExist:
raise forms.ValidationError("此電子信箱不存在")
return self.cleaned_data['mail']
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