On 20.11.12 12:39, Nick Coghlan wrote:
On Tue, Nov 20, 2012 at 7:06 PM, Kristján Valur Jónsson
<krist...@ccpgames.com <mailto:krist...@ccpgames.com>> wrote:
I’m intrigued. I thought this was merely so that one could do
python –m mypackage.mysubpackage
Can you refer me to the rationale and discussion about this feature?
It was part of a fairly long progression in changes to the command
line execution support :)
Top level package execution with -m came first in 2.4, arbitrary
package execution for -m arrived in 2.5 (along with the runpy module),
directory and zipfile execution (by supplying a valid sys.path entry
as the "script" command line argument) was added in 2.6/3.0, and
finally officially supported package execution via -m only arrived in
2.7 and 3.1 (a broken version of the last accidentally existed in 2.5,
but that was just a mistake that arose when merging the import
emulations in runpy and pkgutil, and had a side effect that violated
at least one of the import system invariants).
In the specific case of directory and zipfile execution, discussion
happened on the tracker: http://bugs.python.org/issue1739468
It was never brought up on python-dev because Guido was participating
directly in the tracker discussion. Unfortunately, we then also forgot
to mention it in the original version of the 2.6 What's New doc, so
the vast majority of people missed the addition :(
Hi Nick,
thank you very much for this story and the link to the issue tracker!
A very good move for Python which is really not mentioned enough
to make people more aware of a great feature.
I think part of this discussion should get a more prominent place
for gems that can be found without knowing what to search. ;-)
Is the issue tracker permanent enough to reference it?
Maybe there could be some auxiliary info page with proper keywords
that collects links to relevant discussions like this.
Do we have such a thing already?
ciao - chris
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