On 6/28/10 9:06 AM, Ratufa wrote:
Suppose I have a webapp running in a virtualenv (--no-site-packages)
cloned off a Python 2.6.2 install, running under mod_wsgi. The
virtual environment has various modules installed in it, some perhaps
using C extensions.
Question: If the Python installation gets upgraded to 2.6.5 (or 2.6.7
at some future point), and assuming mod_wsgi also gets
compiled/installed against the new version, will the virtual
environments have to be rebuilt and the modules re-installed? Or, are
Python installations w/in the 2.6.x series backwards compatible enough
that, in the general case, the webapp will continue to work "as is"?
This is under Linux, if it makes a difference.
ABI changes in minor releases (2.6.5 -> 2.6.6, etc) are not allowed; so
as long as the C extensions (and certainly the python code, unless
someone messed up badly) were compiled with 2.6.x, they should work fine
with later updates to 2.6. The exception of course would be if there's
some bug or regression that happened, but its not *supposed* to happen.
Conversely, if you upgrade to 2.7, you'll probably need to end up
recompiling all the C extensions.
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