[Numpy-discussion] clear a variable

[Andrew Wilson]

Hello,
    I can't seem to find this in the documentation, is there a way to 
clear a variable.  For example I have an application that opens displays 
a bunch of images, they can be big memory hogs. When I'm not showing 
them I'd like to clear out those variables, instead of having to close 
down my program and start over.  I know matlab has a command "clear 
/var/" which will do exactly that.
    Thanks for the help!
       Andrew
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