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Datastructure for representing an HTTP URL. Used as a return value for
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Convert self into a url
This function should more or less round-trip with :func:`.parse_url`. The
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with a blank port will have : removed).
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>>> U = parse_url('http://google.com/mail/')
>>> U.url
'http://google.com/mail/'
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'http://username:password@host.com:80/path?query#fragment'
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Given a string and an iterable of delimiters, split on the first found
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('foo', 'bar?baz', '/')
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>>> parse_url('http://google.com/mail/')
Url(scheme='http', host='google.com', port=None, path='/mail/', ...)
>>> parse_url('google.com:80')
Url(scheme=None, host='google.com', port=80, path=None, ...)
>>> parse_url('/foo?bar')
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