Shouldn't
return 'xx'
be
return self['xx'
I don't know why precisely you're using a class as a global namespace,
not that I personally find fault with it. But here are some other
things you can do.
Idea one:
======================================================
class NS(object): """place to put junk"""
ns = NS()
ns.global_var1 = "SPAM and eggs"
ns.global_var2 = "use as you like just prefix with ns."
del ns.global_var # because I'm fickle
dir(ns)
Idea two:
======================================================
Instead of a class as a global namespace, use a module
ns.py
------
"""My global namespace"""
# do not import anything or make
# classes or run functions here, just a place to have varibles
ns_var = "var defined in ns.py"
ignore = ['__builtins__', '__class__', '__delattr__', '__dict__',
'__doc__', '__file__', '__format__', '__getattribute__', '__hash__',
'__init__', '__name__', '__new__', '__package__', '__reduce__',
'__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__',
'__subclasshook__']
main.py
--------
import ns
import mod1
import mod2
import mod3
ns.main_var = "this is main var"
ns.mod3_var = mod3.mod3_var
ns.mod3_somefunc_var = mod3.somefunc.somefunc_var
mod3.show( "ns.ns_var", ns.ns_var)
mod3.show( "ns.main_var", ns.main_var)
mod3.show( "ns.mod1_var", ns.mod1_var)
mod3.show( "ns.mod2_var", ns.mod2_var)
mod3.show( "ns.somefunc_var", ns.somefunc_var)
mod3.show( "ns.mod3_var", ns.mod3_var)
mod3.show( "ns.mod3_somefunc_var", ns.mod3_somefunc_var)
mod3.show( "dir(ns)", dir(ns))
mod3.list_globals()
mod1.py
-------
import ns
# good usage; var not in mod1 global namespace and value is not copied
# from one namespace to another but just put in it.
ns.mod1_var = "this is text in mod1"
# therefore by doing this your code in mod1 is likely to use
# ns.mod1_var and not just mod1_var -is- not ns.mod1_var
mod2.py
-------
import ns
ns.mod2_var = "text in mod2"
def somefunc():
# good app globals
ns.somefunc_var = "make a var not in the global namespace of the
mod2"
ns.renamed_var = "rename this"
somefunc()
mod3.py
-------
# mod3_var is misleading; because you might use it but mod3.mod3_var
# would not be the same value as the ns.mod3_var
mod3_var = "not assigned to ns from in mod3.py but from main.py"
def somefunc():
# bad globals
somefunc.somefunc_var = "make a var not in the global namespace of
the mod3"
somefunc.renamed_var = "rename this"
somefunc() # instinate somefunc_var
def show(astring, avalue):
print astring
print ' ', str(avalue)
def list_globals():
print 'ns variable list'
import ns
print ' [',
for item in dir(ns):
if not item in ns.ignore:
print "'" + item.strip() + "', ",
print ']'
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