[IPython-dev] Issue with upgrading from 0.6.15 to 0.7.0 via easy_install

[Fernando Perez]

Hi all,

this is a plea for help, hoping others on the list can bail me out on this 
problem.  I don't have a clue.  I am forwarding Travis' message unmodified, in 
the hope that somebody who knows about eggs can help us a little here.

[ Travis, thanks for 'doing the right thing and filing  a proper bug report. 
In this case, however, I'm going to have to move this to the -dev list, 
because I'm out of my league on this problem, so I need to enlist the help of 
others who may have some ideas.  I've whitelisted you on the -dev list so your 
posts don't bounce.  You still may want to subscribe to get the replies. ]


I added egg construction as part of 0.7.0 mostly to satisfy user requests, but 
I have to admit that my experiences with the system haven't been the best, so 
a) I don't really know how to help here b) I'm not terribly interested in 
learning any more about eggs.  I find the system unpleasant to use and to 
cause (in IPython's case, I know there are contexts where it's indispensable) 
more problems than it solves.  If providing ipython in egg format continues to 
create hassles to users (and to myself) I may just discontinue the practice. 
So far eggs have cost me quite a few hours, with no discernible benefit (kind 
of like win32, but that's a monopoly I can't really fight ;-)


Cheers,

f

=========================================================================
Subject:Issue with upgrading from 0.6.15 to 0.7.0 via easy_install
From:Travis Caldwell <travis_caldwell2000 at yahoo.com>
Date:Wed, 11 Jan 2006 18:53:54 -0800 (PST)
To:ipython-dev at scipy.net

  Hi,

  I had installed Ipython 0.6.15 via easy_install and that was working
great.

  I then did a 'easy_install -U ipython' and it went out grabbed the new
egg and did the install.

  Everthing looked great untill I tried to run Ipython and then I
noticed that it was still running the previous 0.6.15 version.

  I initially thought that this was a path or script installation issue,
but it looks like some of the setuptools magic is going wrong.

  The new ipython script that got installed in bin is basicly:

__requires__ = 'ipython==0.7.0'
import pkg_resources
pkg_resources.run_script('ipython==0.7.0', 'ipython')


I know very little about easy_install or setuptools, but I read up on
it a bit and tried to use pkg_resources.resource_string() to read out
the script that gets run by run_script()

This may be user error with setuptools, but when I try this I get an:

ImportError: No module named ipython==0.7.0

Here a transcript of my session attempting to "manually" run Ipython:

pinky-1234% python2.4
Python 2.4.2 (#1, Jan  6 2006, 12:06:26)
[GCC 3.2.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.

 >>>>>> __requires__ = 'ipython==0.7.0'
 >>>>>> import pkg_resources
 >>>>>> pkg_resources.resource_string('ipython==0.7.0', 'ipython')

Traceback (most recent call last):
   File "<stdin>", line 1, in ?
   File
"/home/travisc/lib/python2.4/site-packages/setuptools-0.6a9-py2.4.egg/pkg_resources.py",
line 688, in resource_string
     return get_provider(package_or_requirement).get_resource_string(
   File
"/home/travisc/lib/python2.4/site-packages/setuptools-0.6a9-py2.4.egg/pkg_resources.py",
line 119, in get_provider
     __import__(moduleOrReq)
ImportError: No module named ipython==0.7.0

 >>>>>> pkg_resources.get_provider('ipython==0.7.0')

Traceback (most recent call last):
   File "<stdin>", line 1, in ?
   File
"/home/travisc/lib/python2.4/site-packages/setuptools-0.6a9-py2.4.egg/pkg_resources.py",
line 119, in get_provider
     __import__(moduleOrReq)
ImportError: No module named ipython==0.7.0

 >>>>>> pkg_resources.run_script('ipython==0.7.0', 'ipython')

Python 2.4.2 (#1, Jan  6 2006, 12:06:26)
Type "copyright", "credits" or "license" for more information.



IPython 0.6.15 -- An enhanced Interactive Python.
?       -> Introduction to IPython's features.
%magic  -> Information about IPython's 'magic' % functions.
help    -> Python's own help system.
object? -> Details about 'object'. ?object also works, ?? prints more.



In [1]:


Any pointers on where to look next would be appreciated.

The easy_install tool seems really great and I'd love to be able to get
it working.


              _Travis_Caldwell_