[Python-Dev] PYTHON3PATH

[Michael Foord]

On 14/01/2010 21:02, Nick Coghlan wrote:
> However, I agree that that is a fairly unlikely scenario (since
> preinstalled Pythons tend not to rely on the e
Well, on the other hand I think that during the next few years it will 
be increasingly common for developers (and possibly users) to have 
Python 2 and Python 3 installed side-by-side.

Many libraries and applications may never make the jump to Python 3 and 
Python users may be using 'legacy' Python 2 code for many years to come. 
It will also become increasingly common for developers to be using 
Python 3 *primarily* and for Python 3 only libraries and applications to 
emerge.

Whilst there are workarounds we *are* in a situation that Python 2 and 
Python 3 share environment variables for the location of libraries and 
executing code on startup, whilst at the same time they are largely 
incompatible and need separate library paths and startup code.

Michael

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