[twill] Using twill's builtin mechanize distribution throws AttributeError on _debug?

[Stephen McInerney]

Ok, but do I worry about fixing that by installing a newer mechanize
(or is that even possible without breaking twill?)
Or do I just accept errors like that as a fact of life?

> Date: Sun, 4 Sep 2011 22:47:03 +0100
> From: jjl at pobox.com
> To: twill at lists.idyll.org
> CC: spmcinerney at hotmail.com
> Subject: Re: [twill] Using twill's builtin mechanize distribution throws AttributeError on _debug?
> 
> That line hasn't been there in mechanize since 2008 -- back then it knew 
> much more about Python than it does now.  I'd guess that code worked with 
> versions of Python that had been released at that time.  Now it's based on 
> a fork of urllib2, so is less fragile to changes in Python.
> 
> I guess neither of us (me nor Titus) spend much time on this stuff these 
> days.  Certainly mechanize is not dead but certainly resting pretty hard 
> -- but still, it's seen a fair amount of change since 2008.  Speaking for 
> myself more than Titus of course...
> 
> 
> John
> 
> On Sun, 4 Sep 2011, Stephen McInerney wrote:
> 
> >
> > Hi Titus,
> >
> > Can you look at that stacktrace though?
> > mechanize attempted to call robotparser._debug() which dos not exist (on this version anyway)
> > Is mechanize normally that flaky?
> > I guess I could kludge a dummy robotparser._debug(), but that seems bad.
> >
> > Thanks,
> > Stephen
> >
> >
> >> Date: Sun, 4 Sep 2011 07:40:01 -0700
> >> From: ctb at msu.edu
> >> To: spmcinerney at hotmail.com
> >> CC: twill at lists.idyll.org
> >> Subject: Re: [twill] Using twill's builtin mechanize distribution throws	AttributeError on _debug?
> >>
> >> Hi Stephen,
> >>
> >> twill's built-in mechanize is rather old and out of date.  There should
> >> be little or no internal state kept by twill itself; it's a really thin
> >> wrapper around mechanize.  So you should be able to use it w/o any
> >> problem.
> >>
> >> cheers,
> >> --titus
> >>
> >> On Fri, Sep 02, 2011 at 12:45:38PM -0700, Stephen McInerney wrote:
> >>>
> >>> twill experts,
> >>>
> >>> I also posted this on StackOverflow, if you like to reply there:
> >>> http://stackoverflow.com/questions/7278103/using-twills-builtin-mechanize-distribution-throws-attributeerror-on-debug
> >>>
> >>> Using twill's builtin mechanize distribution throws AttributeError on _debug?
> >>>
> >>> I use twill (0.9) and I want to also access its builtin mechanize distribution (on Python 2.6.6).
> >>> I read all the documentation and I'm not clear whether they even support or recommend that, if so they certainly don't publicize it (you might like to document that).
> >>> It seems you can do:
> >>>
> >>>     import _mechanize_dist as mechanize
> >>>     br = mechanize.Browser()
> >>>     br.open('http://www.yahoo.com')
> >>>
> >>> however mechanize throws the stupid AttributeError below on `robotparser._debug`. Should I not be trying to use it? or is it a 2.5/2.6 incompatibility?
> >>> (Twill itself works fine: `twill.commands.go('http://www.yahoo.com')`)
> >>>
> >>>     Traceback (most recent call last):
> >>>       File "<pyshell#19>", line 1, in <module>
> >>>         br.open('http://www.yahoo.com')
> >>>       File "C:\Dev\Python26\lib\site-packages\twill-0.9-py2.6.egg\twill\other_packages\_mechanize_dist\_mechanize.py", line 212, in open
> >>>         return self._mech_open(url, data)
> >>>       File "C:\Dev\Python26\lib\site-packages\twill-0.9-py2.6.egg\twill\other_packages\_mechanize_dist\_mechanize.py", line 238, in _mech_open
> >>>         response = UserAgentBase.open(self, request, data)
> >>>       File "C:\Dev\Python26\lib\site-packages\twill-0.9-py2.6.egg\twill\other_packages\_mechanize_dist\_opener.py", line 175, in open
> >>>         req = meth(req)
> >>>       File "C:\Dev\Python26\lib\site-packages\twill-0.9-py2.6.egg\twill\other_packages\_mechanize_dist\_http.py", line 440, in http_request
> >>>         self.rfp.read()
> >>>       File "C:\Dev\Python26\lib\site-packages\twill-0.9-py2.6.egg\twill\other_packages\_mechanize_dist\_http.py", line 387, in read
> >>>         robotparser._debug("parse lines")
> >>>     AttributeError: 'module' object has no attribute '_debug'
> >>>
> >>> (Last question is: I'm not aware of any caveats about using both twill and mechanize commands side-by-side?)
> >>>
> >>> Thanks,
> >>> Stephen
> >>>
> >>> _______________________________________________
> >>> twill mailing list
> >>> twill at lists.idyll.org
> >>> http://lists.idyll.org/listinfo/twill
> >>
> >>
> >> --
> >> C. Titus Brown, ctb at msu.edu
> >
 		 	   		  
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