While writing a Python 3 script to automate nightly log rotation, you assign one of the following literals to the variable flag and then evaluate if flag:. In which case will the body of the if statement execute?
The string literal "0"
An empty list: []
The integer literal 0
An empty string: ""
In Python, a value is considered truthy unless its type implements __bool__() returning False or __len__() returning zero. Non-empty strings are therefore truthy. The string "0" contains one character, so if flag: evaluates to True and the block runs. The integer 0, the empty list [], and the empty string "" are all falsy because they represent numeric zero or have length zero, so the block is skipped for those values.
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