Software: Apache/2.0.54 (Unix) mod_perl/1.99_09 Perl/v5.8.0 mod_ssl/2.0.54 OpenSSL/0.9.7l DAV/2 FrontPage/5.0.2.2635 PHP/4.4.0 mod_gzip/2.0.26.1a 

uname -a: Linux snow.he.net 4.4.276-v2-mono-1 #1 SMP Wed Jul 21 11:21:17 PDT 2021 i686 

uid=99(nobody) gid=98(nobody) groups=98(nobody) 

Safe-mode: OFF (not secure)

/usr/doc/python-2.2.3/html/lib/   drwxr-xr-x
Free 318.34 GB of 458.09 GB (69.49%)
                            Encoder    Tools    Proc.    FTP brute    Sec.    SQL    PHP-code    Update    Feedback    Self remove    Logout    

Viewing file:     module-pickle.html (5.51 KB)      -rw-r--r--

Python Library Reference

Previous: 3.13 linecache Up: 3. Python Runtime Services Next: 3.14.1 Relationship to other

---

3.14 pickle -- Python object serialization

The pickle module implements a fundamental, but powerful algorithm for serializing and de-serializing a Python object structure. ``Pickling'' is the process whereby a Python object hierarchy is converted into a byte stream, and ``unpickling'' is the inverse operation, whereby a byte stream is converted back into an object hierarchy. Pickling (and unpickling) is alternatively known as ``serialization'', ``marshalling,''^3.2 or ``flattening'', however the preferred term used here is ``pickling'' and ``unpickling'' to avoid confusing.

This documentation describes both the pickle module and the cPickle module.

Footnotes

... ``marshalling,''^3.2

Don't confuse this with the marshal module

• 3.14.1 Relationship to other Python modules
• 3.14.2 Data stream format
• 3.14.3 Usage
• 3.14.4 What can be pickled and unpickled?
• 3.14.5 The pickle protocol
  • 3.14.5.1 Pickling and unpickling normal class instances
  • 3.14.5.2 Pickling and unpickling extension types
  • 3.14.5.3 Pickling and unpickling external objects
• 3.14.6 Security
• 3.14.7 Example

---

Python Library Reference

Previous: 3.13 linecache Up: 3. Python Runtime Services Next: 3.14.1 Relationship to other

---

Release 2.2.3, documentation updated on 30 May 2003.