Synnefo

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from urlparse import urlparse

def join_urls(*args):

    """

    Join arguments into a url.

    >>> join_urls("http://www.test.org", "path")

    'http://www.test.org/path'

    >>> join_urls("http://www.test.org/", "path")

    'http://www.test.org/path'

    >>> join_urls("http://www.test.org", "/path")

    'http://www.test.org/path'

    >>> join_urls("http://www.test.org/", "/path")

    'http://www.test.org/path'

    >>> join_urls("http://www.test.org/", "/path/")

    'http://www.test.org/path/'

    >>> join_urls("http://www.test.org/a/b", "c/d")

    'http://www.test.org/a/b/c/d'

    >>> join_urls("http://www.test.org/a/b/", "c/d")

    'http://www.test.org/a/b/c/d'

    >>> join_urls("http://www.test.org/a/b", "/c/d")

    'http://www.test.org/a/b/c/d'

    >>> join_urls("http://www.test.org/a/b/", "/c/d")

    'http://www.test.org/a/b/c/d'

    """

    return "/".join([a.lstrip("/").rstrip("/") for a in args[:-1]]) + \

            "/" + args[-1].lstrip("/")

def parse_base_url(base_url):

    """

    >>> parse_base_url("https://one.two.three/four/five")

    ('https://one.two.three', '/four/five')

    >>> parse_base_url("https://one.two.three/four/five/")

    ('https://one.two.three', '/four/five/')

    >>> parse_base_url("https://one.two.three/")

    ('https://one.two.three', '/')

    >>> parse_base_url("https://one.two.three")

    ('https://one.two.three', '/')

    """

    parsed = urlparse(base_url)

    base_path = parsed.path.strip('/')

    base_host = parsed.scheme + '://' + parsed.netloc

    return base_host, base_path

if __name__ == "__main__":

    import doctest

    doctest.testmod()