datauri is a small Python library implementing the data: uri
scheme defined in RFC2397_. The generic format is::
data:[
.. _RFC2397: https://tools.ietf.org/html/rfc2397
Install datauri from PyPI using::
pip install datauri
Note: this library is for Python 3 only.
.. code-block:: python
import datauri
To parse a string containing a data: uri, use parse():
.. code-block:: python
parsed = datauri.parse('data:text/plain,A%20brief%20note')
This returns a parse result:
.. code-block:: python
parsed.media_type 'text/plain' parsed.data b'A brief note' parsed.uri 'data:text/plain,A%20brief%20note'
This is a simple container class with a few attributes:
The media_type attribute is a string (str) or None in
case it was absent. Any (optional) embedded text encoding
specifications are not processed in any way; it is up to the
application to deal with that.
The data attribute is a byte string (bytes) with the decoded
data. URL encoding and base64 is handled transparently.
For convenience, the uri attribute contains the input uri.
Parsed URIs compare equal if their media type and data are the same. Instances are hashable, so they can be used as dictionary keys.
Parsing failures will raise a DataURIError:
.. code-block:: python
datauri.parse('invalid') Traceback (most recent call last): … datauri.DataURIError: invalid data uri
The DataURIError subclasses the built-in ValueError,
so this will work as expected:
.. code-block:: python
try: datauri.parse('invalid') except ValueError: pass
In addition to parsing a string, this library can also discover (and
directly parse) any data: URIs found in a larger string:
.. code-block:: python
s = 'long string with data:text/plain,A%20brief%20note and more' for parsed in datauri.discover(s): print(s)
RFC2397: https://tools.ietf.org/html/rfc2397
Mozilla developer documentation: https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs
Currently, only parsing has been implemented.
Please use Github issues to report problems or propose improvements.
1.0.0
Initial release.
(This is the OSI approved 3-clause "New BSD License".)
Copyright © 2017, EclecticIQ
All rights reserved.
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