I am using ArcMap 10.2.2 and have noticed that after updating a Python script for a tool in a Python toolbox, the tool will automatically update when run from a new (blank) mxd but will revert back to running the previous version of the script when opening previously saved mxds- but not all. Has anybody else noticed this type of behaviour? I am using a Windows 7 machine running Python version 2.7. It would seem that for these particular MXDs the previous script is held in memory. I have tried reseting the normal mxt file/refreshing the toolbox but no joy. Many thanks in advance.
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