Pastebin helper for Online Python Tutor

opt.py

#!/usr/bin/env python

import sys
import urllib
import webbrowser

def get_opt_url(s, from_bpython=True):
    """ Use json to post to github. """

    if from_bpython:
        def fix(text):
            return ('\n'.join(line[4:] if line[:4] in ('... ', '>>> ') else '### '+line
                             for line in text.split('\n')).encode('utf8'))
        s = fix(s)

    url = 'http://www.pythontutor.com/visualize.html'

    s = s[:-1] if s.endswith('\x0A') else s

    #Doing encoding manually instead of urllib.encode because order
    data = [
            ('mode',  'display'),
            ('cumulative',  'false'),
            ('heapPrimitives',  'false'),
            ('drawParentPointers',  'false'),
            ('textReferences',  'false'),
            ('showOnlyOutputs',  'false'),
            ('py',  '2'),
           ]

    req = url + '#code=' + urllib.quote_plus(s) + '&' + urllib.urlencode(data)

    return req

def view_in_opt(s):
    webbrowser.open_new_tab(get_opt_url(s))

if __name__ == "__main__":
    s = sys.stdin.read()
    view_in_opt(s)
    print get_opt_url(s)