[sqlalchemy] Re: Side by side versions on one machine.

2011-04-26 Thread GHZ
Try virtualenv

http://pypi.python.org/pypi/virtualenv

On Apr 26, 2:31 pm, Mathieu Tozer math...@madebysofa.com wrote:
 Is it possible to have multiple installation versions on the one machine? I
 don't want to screw with my dev environment too much but want to try
 migrating up.

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Re: [sqlalchemy] Re: Side by side versions on one machine.

2011-04-26 Thread Mike Conley
If you only want to change the SQLAlchemy version and use easy install
tools, I have done it by altering the sqlalchemy path in
site_packages/easy-install.pth

I find that easier than setting up virtual environments. If you need to
change a lot of things including maybe the Python version, then virtualenv
might be the way to go.

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Mike Conley

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Re: [sqlalchemy] Re: Side by side versions on one machine.

2011-04-26 Thread werner

On 04/26/2011 03:24 PM, Mike Conley wrote:
If you only want to change the SQLAlchemy version and use easy install 
tools, I have done it by altering the sqlalchemy path in 
site_packages/easy-install.pth

Or do this before you import SQLAlchemy:



I find that easier than setting up virtual environments. If you need 
to change a lot of things including maybe the Python version, then 
virtualenv might be the way to go.


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Mike Conley


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Re: [sqlalchemy] Re: Side by side versions on one machine.

2011-04-26 Thread werner

On 04/26/2011 03:24 PM, Mike Conley wrote:
If you only want to change the SQLAlchemy version and use easy install 
tools, I have done it by altering the sqlalchemy path in 
site_packages/easy-install.pth

Sorry clicked wrong button to fast

Use the multi version install, e.g.:

# MULTI or SINGLE?!!!
#
# m = multi
# Z = always unzip
# a = always copy
# x = exclude scripts
# d = install directory

# to install - Multiversion WITH SCRIPTS
easy_install.main(['-Zmad', sitePKG, egg])


And then before you import SQLAlchemy do this to select the version:

import pkg_resources
pkg_resources.require(sqlalchemy) # get latest version
##pkg_resources.require(sqlalchemy==0.5.8) # get specific version


Werner

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