bpython pastebin script: uploads to Online Python Tutor

opt.py

#!/usr/bin/env python
# Add the line 
# pastebin_helper = opt.py
# to .bpython/config
# under a section called
# [general]
# to enable

import sys
import urllib
import webbrowser

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

    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)

    num_instructions = len([line for line in s.split('\n') if not line.startswith('#')])

    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'),
            ('curInstr', str(num_instructions))
           ]

    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)