Lennart Regebro wrote:
Whereby, setuptools would raise an exception if the following packages were
installed:
def setup(
...
install_requires=['zope.component']
)
I think this is the problem. I understand what you mean, but it's not
obvious to me at all that this should raise an error in this
situation.
...I'm not even suggesting it should ;-) I was just presenting the
problem, and typing a possibility as I was writing.
But yet, for your suggestion to work, it has to.
Well, per library. The sketch I put down allowed zope.component 4.0 to
complain if a library requests zope.component, didn't specify 4.0 and
newer, but yet 4.0+ ended up installed.
In
practice, that means that you, to use zope.component >= 4.0, must give
a version number. But even when an API changes, it may be possible to
support both versions. And that would then be impossible to do in this
case.
Well, that's why I put the hint in zope.component's setup function call
in the example... It would only be used for incompatible API versions,
otherwise it could be left out, and any newer version would be fine...
Chris
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