[Scons-dev] Python3 test CPPDEFINES/append

[Gaurav Juvekar]

Hi,

I'm trying to make test/CPPDEFINES/append.py work with both py2 and py3. If I use a collections.OrderedDict subclass instead of a dict, then it is somehow preserved across environments. The attached minimal test case has the value generated in the Append() test preserved when AppendUnique() is called.
Does anyone have a idea why this is happening before I delve into the code?

--
Regards,
Gaurav Juvekar

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==== Testing CPPDEFINES, appending a string to a dict
   orig = {'NAME2': 'VAL2', 'NAME3': None, 'NAME1': 'VAL1'}, append = FOO
Append:
	result={'NAME2': 'VAL2', 'NAME3': None, 'NAME1': 'VAL1', 'FOO': None}
	final=-DFOO -DNAME1=VAL1 -DNAME2=VAL2 -DNAME3
AppendUnique:
	result=[('NAME2', 'VAL2'), ('NAME3',), ('NAME1', 'VAL1'), ('FOO',), 'FOO']
	final=-DNAME2=VAL2 -DNAME3 -DNAME1=VAL1 -DFOO -DFOO
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