May 2017
Beginner to intermediate
444 pages
11h 31m
English
The Python interpreter runs through all the code in a module once, finding any syntax errors and pointing them out. You cannot run your Python code if you do not have the syntax right. This includes indentation (if not resulting in a syntax error, wrong indentation usually results in a bug).
On the next parsing round, the interpreter interprets our code and runs it.
At runtime, many GUI events can be generated and it is usually callback functions that add functionality to GUI widgets.
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