Le 29 Mar 2005 09:50:46 -0800, Tian a écrit :
> I want to create a object directory called Context in my program, which
> is based on a dict to save and retrieve values/objects by string-type
> name. I have the definition like this:
>
> utils.py
> --------------------
> global sysctx
# you are in the global scope of the utils module. This "global sysctx"
# has no meaning, replace by
sysctx = None # create a global 'sysctx' name in utils namespace
>
> class Context:
class Context(object): # why not use "new-style" classes, we are in
2005
> def __init__(self):
# I suppose that there is some __doc__ and code :-)
> def set(self, name, obj, overwrite=True):
> def get(self, name):
> def has(self, name):
>
> def init():
> global sysctx
> sysctx = Context()
>
> def getContext():
> global sysctx
> return sysctx
> ---------------------
>
> init() is called somewhere at the beginning of the program.
> In other modules, i want to use this in the following manner,
>
> from utils import *
Please do not use the from module import * form
from utils import getContext
> getContext().set(...)
You can also restrict the exported names of utils.py by adding a
__all__ = ('getContext',)
in utils.py.
>
> but SOMETIMES I met following error located in "getContext()"
> NameError: global name 'sysctx' is not defined
>
> I found that when a module is in the same directory as utils.py, when I
> can simply use "utils" for importing, there is no such problem. But
> when i was writing a module in a deeper directory than utils.py, which
> has to use the full module name for importing, such as:
>
> from myproj.utils import *
> getContext().set(...)
>
> I got this error.
>
> What should I do to correct that?
See above :-) and post a follow-up to report if the issue is solved.
>
PS sorry for bad english. I am not a native speaker.
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