ZCubes Wiki

Yurttas/PL/SL/python/docs/core-python-programming/doc/20/lib/subclassing-reprs.html

Revision as of 20:01, 7 November 2013 by MassBot1 (talk | contribs) (Created page with "<div class="navigation"> {| width="100%" cellspacing="2" align="center" | yurttas/PL/SL/python/docs/core-python-programming/doc/20/lib/Repr-objects.html|[[Image:yurttas...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

[[yurttas/PL/SL/python/docs/core-python-programming/doc/20/lib/Repr-objects.html|Previous Page]]

[[yurttas/PL/SL/python/docs/core-python-programming/doc/20/lib/module-repr.html|Up One Level]]

[[yurttas/PL/SL/python/docs/core-python-programming/doc/20/lib/module-new.html|Next Page]]

Python Library Reference

[[yurttas/PL/SL/python/docs/core-python-programming/doc/20/lib/contents.html|Contents]]

[[yurttas/PL/SL/python/docs/core-python-programming/doc/20/lib/modindex.html|Module Index]]

[[yurttas/PL/SL/python/docs/core-python-programming/doc/20/lib/genindex.html|Index]]

Previous: 3.21.1 Repr Objects Up: 3.21 repr Next: 3.22 new


3.21.2 Subclassing Repr Objects

The use of dynamic dispatching by Repr.repr1() allows subclasses of Repr to add support for additional built-in object types or to modify the handling of types already supported. This example shows how special support for file objects could be added: 

import repr
import sys

class MyRepr(repr.Repr):
    def repr_file(self, obj, level):
        if obj.name in ['<stdin>', '<stdout>', '<stderr>']:
            return obj.name
        else:
            return `obj`

aRepr = MyRepr()
print aRepr.repr(sys.stdin)          # prints '<stdin>'

[[yurttas/PL/SL/python/docs/core-python-programming/doc/20/lib/Repr-objects.html| ]]

[[yurttas/PL/SL/python/docs/core-python-programming/doc/20/lib/module-repr.html| ]]

[[yurttas/PL/SL/python/docs/core-python-programming/doc/20/lib/module-new.html| ]]

Python Library Reference

[[yurttas/PL/SL/python/docs/core-python-programming/doc/20/lib/contents.html| ]]

[[yurttas/PL/SL/python/docs/core-python-programming/doc/20/lib/modindex.html| ]]

[[yurttas/PL/SL/python/docs/core-python-programming/doc/20/lib/genindex.html| ]]

Previous: 3.21.1 Repr Objects Up: 3.21 repr Next: 3.22 new

See About this document... for information on suggesting changes.

Retrieved from "http://wiki.zcubes.com/index.php?title=Yurttas/PL/SL/python/docs/core-python-programming/doc/20/lib/subclassing-reprs.html&oldid=185548"