[Tutor] Setting a global variable on class initialisation

[Max Russell]

Hello again

 

Sorry I didn't make the problem I'm working with all too clear. Basically I'm working with a class (Directory) that upon creation reads in a 3 files and from these files populates one main list.

This bit is fine.

 

The trickier bit was that I need to use two of the sublists (e.g the contents of two of the files) outwith the module. I didn't want to read the lists in again as I wanted the data to be set at the time the Directory class is created. The lists are accessed from other classes and although I tried passing the instance of Directory into the new class (Item) but this was causing real problems Item was trying to read in the lists:

def __init__(self, filename, **args):

I noted that I couldn't put my argument for an instance of Directory after **args (presumably because **args is used to mop up the remaining arguments as a list) and when I put it before it messed up the reading of the list.

 

 

So my code now has this format-

 

    def GetCategories(self):

        #Assign the list values read in via platformCategories and typeCategories

        global platformCategories
        platformCategories = self.GetPlatformsFile()
        global typeCategories
        typeCategories = self.GetTypesFile()

 

The method above is within Directory and updates the two lists with the values I need. (The methods called within GetCategories do the returning of the lists.)

 

I think I've got a grasp on what was going wrong.

 

ta

 

Max Russell
Senior Test Engineer

Barco
Bonnington Bond, 2 Anderson Place, Edinburgh EH6 5NP, UK
Tel + 44 (0) 131 472 5731 Fax + 44 (0) 131 472 4799
www.barco.com
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