How to delete/mainpulate global variables ??

[Berenike Loos]

Hi

I am using two function in my program. The first one reads out some text of an TK entry field and puts it into a global variable.

The other function has to read out the global variable and has to print out the text. Now the global variable should be deleted, so if I call the second function again without calling the first, NO text will be displayed.

thx a lot 
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