How to use filter() in Python 3 to write a program
Let’s be practical, when you pour water that has particles into a filter, the water passes through the filter but the particles remain in the filter.
A filter function does the work of a filter.
A filter() function returns a sequence for which a function is true, I.e. the items you don’t want are discarded.
The syntax of the filter() function is:
list(filter(Boolean_function, sequence))
What I mean by a Boolean_function is a user-define function that returns a True or False value
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