exception?jinja2.TemplateError(message=None)

Baseclass for all template errors.

exception?jinja2.UndefinedError(message=None)

Raised if a template tries to operate on?Undefined.

exception?jinja2.TemplateNotFound(name,?message=None)

Raised if a template does not exist.

exception?jinja2.TemplatesNotFound(names=(),?message=None)

Like?TemplateNotFound?but raised if multiple templates are selected. This is a subclass of?TemplateNotFound?exception, so just catching the base exception will catch both.

New in version 2.2.

exception?jinja2.TemplateSyntaxError(message,?lineno,?name=None,filename=None)

Raised to tell the user that there is a problem with the template.

message

錯(cuò)誤信息的 utf-8 字節(jié)串。

lineno

發(fā)生錯(cuò)誤的行號(hào)。

name

模板的加載名的 unicode 字符串。

filename

加載的模板的文件名字節(jié)串，以文件系統(tǒng)的編碼（多是 utf-8 ， Windows 是 mbcs ）。

文件名和錯(cuò)誤消息是字節(jié)串而不是 unicode 字符串的原因是，在 Python 2.x 中，不對(duì)異常和回溯使用 unicode ，編譯器同樣。這會(huì)在 Python 3 改變。

exception?jinja2.TemplateAssertionError(message,?lineno,?name=None,filename=None)

Like a template syntax error, but covers cases where something in the template caused an error at compile time that wasn’t necessarily caused by a syntax error. However it’s a direct subclass of?TemplateSyntaxError?and has the same attributes.