[IPython-dev] libreadline.so.5 missing in Canopy's IPython?

[Prabhu Ramachandran]

On 2/21/14 11:05 PM, Name Name wrote:
> I'm (partially) using IPython also out of Enthought's Canopy environment. Hopefully someone on this list is familiar with that.
>
> I just upgraded to version 1.3.0.1715 only to find that I could not invoke the simple 'non-notebook' IPython shell anymore without error because of a missing libreadline.so.5.
>
> I then realized, that indeed appdata/canopy-1.3.0.1715.rh5-x86_64/lib/ is lacking libreadline.so.5 completely(?)
> Also I realized that strangely/luckily appdata/canopy-1.1.0.1371.rh5-x86_64/lib/ of the earlier version was not deleted during update(?)
> Moreover the 'old' appdata/canopy-1.1.0.1371.rh5-x86_64/lib/ does contain libreadline.so.5
>
> After putting links to the 'old' libreadline.so.5 into the new appdata/canopy-1.3.0.1715.rh5-x86_64/lib/ the 'non-notebook' IPython shell starts again without error.
>
> Most likely all of this is not supposed to be. Does anyone have/had similar experiences? What am I missing here?

Readline should have been installed in your user environment 
automatically after your upgrade so I am surprised it did not work for 
you.  Do you have readline installed in your User environment?  How are 
you launching IPython?  You shouldn't have to touch your 
appdata/canopy-1.3.0.1715.rh5-x86_64/lib/ and you can probably remove 
the older appdata/canopy-1.1.0.1371.rh5-x86_64/lib/ as well.  If you 
don't see readline in your environment, install it using enpkg readline.

cheers,
Prabhu