12.1.4 Writer Implementations 
Three implementations of the writer object interface are provided as
examples by this module.  Most applications will need to derive new
writer classes from the NullWriter class.
- 
A writer which only provides the interface definition; no actions are
taken on any methods.  This should be the base class for all writers
which do not need to inherit any implementation methods.
- 
A writer which can be used in debugging formatters, but not much
else.  Each method simply announces itself by printing its name and
arguments on standard output.
- 
  | class DumbWriter( | [file[, maxcol  = 72]]) |  
 
- 
Simple writer class which writes output on the file object passed in
as file or, if file is omitted, on standard output.  The
output is simply word-wrapped to the number of columns specified by
maxcol.  This class is suitable for reflowing a sequence of
paragraphs.
Release 2.4.3, documentation updated on 29 March 2006.
 
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