This is needed for backward compatibility. New plugins
(which do not care about "old" osc versions) should not
use "self.<imported modname>.<something>" anymore
to refer to the imported module. Instead use
"<imported modname>.<something>" (this will only work with
osc > 0.140.1).
Using the "old" exec approach isn't possible anymore because it'll break all
plugins which aren't compatible with python3 (for instance the usage of
python2's "print" statement will lead to an error). In order to circumvent
this problem we do the following:
- import the plugin/module
- update the module's global symbol table with the "globals()" of the
commandline module
- bind the module's "do_*" functions to the "Osc" class
This basically mimics the old "exec" semantics.
There are many places can't be covered by 2to3, especially the
str/unicode -> str/bytes change done in python3. This is a big patch
incorporating all changes made in order to make python3 suite.py run
without any single failure.
It
* adapt the introspect_handler_3 for case there are no __defaults__
* adds the ET_ENCODING variable for ET.fromstring ("unicode" in py3,
"utf-8" in py2)
* (re)adds various builtins to both python versions
- memoryview to python 2.6
- bytes compatible with py3 to 2.6 and 2.7
and it changes few parts of tests/common.py in order to be compatible
with python3
* new urlcompare method compares all components or url + parsed query
string in a dictionary, so the ordering, neither quoting does not matter
* bytes builtin has been added to 2.x and used in assertEqualMultiline
The most visible change in python3 - removal of print statement and all
the crufty
print >> sys.stderr, foo,
The from __future__ import print_function makes it available in python
2.6
Some modules (httplib, StringIO, ...) were renamed in python3. This
patch try to import the proper symbols from python3 and then fallback to
python2 in a case ImportError will appear.
There is one exception, python 2.7 got the io module with StringIO, but
it allow unicode arguments only. Therefor the old module is poked before
new one.
this patch
1.) removes the iteritems/itervalues, which were dropped in py3
items/values are used instead
2.) add an extra list() in a cases the list-based access is needed
(included appending, indexing and so)
3.) changes a sorting idiom in few places
instead of
foo = dict.keys()
foo.sort()
for i in foo:
there is a recommended
for i in sorted(dict.keys()):
4.) in one occassion it removes a if dict.has_key() by simpler
dict.get(key, default)
Basically it's just a wrapper around subprocess.call which raises an ExtRuntimeError
exception if subprocess.call raised an OSError with errno set to ENOENT (unfortunately
the OSError's filename attribute is set to None therefore we cannot print a meaningful
error message (that's why an ExtRuntimeError is raised)).
Replaced all occurrences of subprocess.call with a corresponding run_external call.
