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This module helps scripts to parse the command line arguments in
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function (including the special meanings of arguments of the form `-'
and `--').  Long options similar to those supported by GNU software
may be used as well via an optional third argument.  This module
provides two functions and an exception:

getopt() -- Parse command line options
gnu_getopt() -- Like getopt(), but allow option and non-option arguments
to be intermixed.
GetoptError -- exception (class) raised with 'opt' attribute, which is the
option involved with the exception.
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Parses command line options and parameter list.  args is the
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The return value consists of two elements: the first is a list of
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This function works like getopt(), except that GNU style scanning
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    processing options as soon as a non-option argument is
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If the first character of the option string is `+', or if the
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