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.
- class NullWriter()
- 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.
- class AbstractWriter()
- 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.
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Release 2.2, documentation updated on December 21, 2001.