Python IDE/Eclipse

Thomas 'PointedEars' Lahn PointedEars at
Fri Aug 26 12:37:44 EDT 2011

Dave Boland wrote:

> I'm looking for a good IDE -- easy to setup, easy to use -- for Python.
>   Any suggestions?

PyDev (currently, from the Aptana Studio 3.0.4 Plugin; but 
I can see that 2.2.2 has been released).

> I use Eclipse for other projects and have no problem with using it for
> Python, except that I can't get PyDev to install.  It takes forever,
> then produces an error that makes no sense.
> An error occurred while installing the items
>    session context was:(profile=PlatformProfile,
> phase=org.eclipse.equinox.internal.provisional.p2.engine.phases.Install,
> operand=null --> [R]org.eclipse.cvs 1.0.400.v201002111343,
>    Cannot connect to keystore.
>    This trust engine is read only.
>    The artifact file for
> osgi.bundle,org.eclipse.cvs,1.0.400.v201002111343 was not found.
> Any suggestions on getting this to work?

Your Eclipse version is apparently a bit old (note the build/sign date of 
the requested CVS package).  Although PyDev is documented to work with 
Eclipse 3.2 to 3.7, try a newer version (but make a backup of your workspace 
before).  Indigo (3.7) was released on 2011-06-22 CE.  The corresponding CVS 
package version is (perhaps with updates) 3.3.400.I20110510-0800.

If you use PyDev from Aptana, you have to uninstall standalone PyDev first.  

I can still recommend using Aptana for Eclipse 3.7 on GNU/Linux, where it is 
running without problems so far.  However, in Eclipse 3.7 on Windows 7, 
after the latest Aptana update (3.0.4), PDT collided in their Content-Type 
settings with Aptana PHP Editor, so I had to uninstall the Aptana plugin in 
order to get any PHP editor working again.


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