About the Python Logger

The Python Logger is a customizable script debugger you can use to locate a Python script that has created instability in MotionBuilder. The Python Logger outputs each line executed by MotionBuilder to a log file, and after you experience instability you can read the last Python line executed.

To access the Python Logger:

From the MotionBuilder menu bar, select Window > Python Editor.
The Python Editor displays.
In the Python Editor toolbar, click the Python Logger button .

Python Logger

The Python Logger shows the active script displayed in the Python Editor work area selected for debugging.

This table lists the Python Logger buttons:

Button	Description
Browse	Lets you select a new script to debug because clicking Debugger selects the current script automatically.
Log Execution	Executes the script using the debugger so that every line the script executes is logged in the log file.
Execution log	The path of the log file where all the logging is done. By default, this is <MotionBuilder Install Directory>\bin\lastexec.log.
Print Last Exec Line	Prints information about the last line executed by the debugged script in the console.
Print last exec log	Prints the whole log file in the console. This file contains information about the flow of a program; which lines are executed and which parameters were passed to function calls.

Using the Python Logger

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