if_modified_since Property

A date determining the maximum age of the desired document.

Syntax

def get_if_modified_since() -> str: ...
def set_if_modified_since(value: str) -> None: ...

if_modified_since = property(get_if_modified_since, set_if_modified_since)

Default Value

""

Remarks

If this property contains a non-empty string, an If-Modified-Since HTTP header is added to the request. The value of this header is used to make the HTTP request conditional: if the requested documented has not been modified since the time specified in the field, a copy of the document will not be returned from the server; instead, a 304 (not modified) response will be returned by the server and the class fails with an error

The format of the date value for if_modified_since is detailed in the HTTP specs. An example is Sat, 29 Oct 1994 19:43:31 GMT.

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IPWorks 2020 Python Edition - Version 20.0 [Build 8307]