magnum/magnum/cmd
houming-wang 98875345c2 Performance: leverage dict comprehension in PEP-0274
PEP-0274 introduced dict comprehensions to replace dict constructor
with a sequence of length-2 sequences, these are benefits copied
from [1]:
  The dictionary constructor approach has two distinct disadvantages
  from the proposed syntax though.  First, it isn't as legible as a
  dict comprehension.  Second, it forces the programmer to create an
  in-core list object first, which could be expensive.
Magnum does not support python 2.6, we can leverage this.
There is deep dive about PEP-0274[2] and basic tests about
performance[3].
Note: This commit doesn't handle dict constructor with kwagrs.
This commit also adds a hacking rule.

[1]http://legacy.python.org/dev/peps/pep-0274/
[2]http://doughellmann.com/2012/11/12/the-performance-impact-of-using
-dict-instead-of-in-cpython-2-7-2.html
[3]http://paste.openstack.org/show/480757/

Change-Id: I61992fa428d6760449afe3754b02506336e8b421
2015-12-03 22:02:02 -05:00
..
__init__.py Create a ReST API entrypoint 2014-11-18 14:01:20 -07:00
api.py Indirection API implementation 2015-09-01 16:38:36 +02:00
conductor.py Backend support for magnum service 2015-09-28 17:06:10 +00:00
db_manage.py Unify using of migration tools 2015-08-26 17:54:14 +09:00
template_manage.py Performance: leverage dict comprehension in PEP-0274 2015-12-03 22:02:02 -05:00