On Tue, 18 Aug 2009 06:06:29 +0300, Alex Grönholm
<[email protected]> wrote:
> That scheme does not allow me to say "This dependency is required unless
> platform is X". A practical example of this is Beaker, where pycryptopp
> is required for cookie encryption, but works without external
> dependencies on Jython.
Yes, I follow..
That's why I'm so keen on having a pre_setup() and a post_setup()
user routine, where the environment and dependencies can be exposed.
I can't see any easy way to do conditional logic in a config file.
imho it just has to go in code.. and it is as simple as that - haha
for example (demonstration code - not runnable):
"""
from distutils.core import setup
def pre_setup():
if sys.platform() == "linux2":
self.dependencies.append("pycryptopp")
return
setup()
"""
So, one could modify the dependencies dynamically based
on the underlying platform.
Dependencies is a list of packages within the setup class. So
the user can add or remove items before the actual setup() is
done.
> Also, how do I define that this package has a minimum (or maximum)
> required Python version?
[Python_versions]
minimum_supported=2.3
maximum_supported=2.7
We can't tell a user it won't work - only that it isn't supported.
> Or that the distribution is only applicable to a certain platform (say,
> win32 or java)?
[Platforms]
supported1=linux2
supported2=mac
supported3=win32,win64
I think we can let the developer specify what *is* supported, and if it
doesn't
match then give the user the choice to proceed or not. (At their own risk)
David
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