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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _urljoin(left, right):
 """Join two URLs. Takes URLs specified by left and right and joins them into a single URL. If right is an absolute URL, it is returned directly. This differs from urlparse.urljoin() in that the latter always chops off the left-most component of left unless it is trailed by '/', which is not the behavior we want. """


    # Handle the tricky case of right being a full URL
    tmp = urlparse.urlparse(right)
    if tmp.scheme or tmp.netloc:
        # Go ahead and use urlparse.urljoin()
        return urlparse.urljoin(left, right)

    # Check for slashes
    joincond = (left[-1:], right[:1])
    if joincond == ('/', '/'):
        # Too many, preserve only one
        return left + right[1:]
    elif '/' in joincond:
        # Just one; great!
        return left + right
    else:
        # Not enough; add one
        return left + '/' + right