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Python Library Reference

Previous: 8.12 fcntl Up: 8. Unix Specific Services Next: 8.13.1 Template Objects

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8.13 pipes -- Interface to shell pipelines

Availability: Unix.

The pipes module defines a class to abstract the concept of a pipeline -- a sequence of convertors from one file to another.

Because the module uses /bin/sh command lines, a POSIX or compatible shell for os.system() and os.popen() is required.

The pipes module defines the following class:

class Template(

)

An abstraction of a pipeline.

Example:

>>> import pipes
>>> t=pipes.Template()
>>> t.append('tr a-z A-Z', '--')
>>> f=t.open('/tmp/1', 'w')
>>> f.write('hello world')
>>> f.close()
>>> open('/tmp/1').read()
'HELLO WORLD'

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Python Library Reference

Previous: 8.12 fcntl Up: 8. Unix Specific Services Next: 8.13.1 Template Objects

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Release 2.3.4, documentation updated on May 20, 2004.