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Example of 3-tuple alias retval added to tutorial.

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Travis Shirk 2015-11-27 11:36:18 -07:00
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docs/tutorial.rst
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@ -791,6 +791,11 @@ must have the following signature:
stderr = None stderr = None
return stdout, stderr return stdout, stderr
# Lastly, a 3-tuple return value can be used to include an integer
# return code indicating failure (> 0 return code). In the previous
# examples the return code would be 0/success.
return (None, "I failed", 2)
We can dynamically alter the aliases present simply by modifying the We can dynamically alter the aliases present simply by modifying the
built-in mapping. Here is an example using a function value: built-in mapping. Here is an example using a function value: