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This module handles sending static content such as in-memory data or
files. At this time it has cache helpers and understands the
if-modified-since request header.
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Returns an application that will send content in a single chunk,
this application has support for setting cache-control and for
responding to conditional (or HEAD) requests.
Constructor Arguments:
``content`` the content being sent to the client
``headers`` the headers to send /w the response
The remaining ``kwargs`` correspond to headers, where the
underscore is replaced with a dash. These values are only
added to the headers if they are not already provided; thus,
they can be used for default values. Examples include, but
are not limited to:
``content_type``
``content_encoding``
``content_location``
``cache_control()``
This method provides validated construction of the ``Cache-Control``
header as well as providing for automated filling out of the
``EXPIRES`` header for HTTP/1.0 clients.
``set_content()``
This method provides a mechanism to set the content after the
application has been constructed. This method does things
like changing ``Last-Modified`` and ``Content-Length`` headers.
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Returns an application that will send the file at the given
filename. Adds a mime type based on ``mimetypes.guess_type()``.
See DataApp for the arguments beyond ``filename``.
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