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Date: Sun, 14 Jul 2013 09:26:13 +1000
Subject: Re: How to read Mozrepl Javascript result into a Python Variable?
From: Chris Angelico <rosuav@gmail.com>
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Xref: csiph.com comp.lang.python:50619

On Sun, Jul 14, 2013 at 6:49 AM, goldtech <leegold@operamail.com> wrote:
> Hi,
>
> With Mozrepl addon in Firefox and Python I do:
>
>>>> import telnetlib
>>>> tn = telnetlib.Telnet(r'127.0.0.1', 4242, 5)
>>>> tn.read_eager()
> '\nWelcome to MozRepl.\n\n - If you get stuck at the "'
>>>> tn.read_until("repl> ")
> ...snip...
>>>> tn.write(r'alert(window.content.location.href)'+"\n")
>
> and I get an alert box with the URL of the active tab.
>
> But how do I read that URL into a python variable? Something like tn.write(r';var zz = window.content.location.href'+ "\n") but that doesn't get it into python.
>
> I would be grateful for help. Thanks.

This seems to be what you're after:

https://github.com/bard/mozrepl/wiki/Tutorial

By my reading of that, this should do it:

tn.write('window.content.location.href\n')

It seems to function somewhat like Python's own interactive mode - a
bare expression gets sent to you. Very convenient.

ChrisA