Eggs, VirtualEnv, and Apt - best practices?

[Diez B. Roggisch]

Nick Craig-Wood schrieb:
> Scott Sharkey <ssharkey at linuxunlimited.com> wrote:
> B>  Our development group at work seems to be heading towards adopting 
>>  python as one of our standard "systems languages" for internal 
>>  application development (yeah!).  One of the issues that's come up is 
>>  the problem with apt (deb packages) vs eggs, vs virtual environments.
>>  We're probably gonna end up using Pylons or TurboGears for web-based
>>  apps, and I've recommended virtualenv, but one of the other developers 
>>  has had some "inconsistencies" when mixing systems with python installed 
>>  from apt (all our servers are debian or ubuntu based) vs when installed 
>>  under virtualenv.
>>
>>  I have basically recommended that we only install the python base (core 
>>  language) from apt, and that everything else should be installed into 
>>  virtual environments. But I wanted to check to see how other enterprises
>>  are handling this issue?  Are you building python from scratch, or using 
>>  specific sets of .deb packages, or some other process.
>>
>>  Any insight into the best way to have a consistent, repeatable, 
>>  controllable development and production environment would be much 
>>  appreciated.
> 
> I'll admit to not knowing what you mean by virtual environment...

virtualenv is a simple tool to create isolated python environments where 
you can install whatever packages you like without interfering with 
other installations, even allowing to install conflicting package 
versions (per VE of course they must be without conflicts).

Diez