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Python List Count Method Explained python exercises for beginners
Python List Count
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List Count Method
The Count Module is a built-in checklist technique that means that you can depend the occurrences of a selected factor in the sequence.
Its syntax is as follows:
This technique counts the variety of cases of a component in an inventory. See the beneath instance.
>>> random_list = ["12", 12, (12, 13), 12, 12, 13, 'linux', 'osx', 'win7'] >>> random_list.depend(12) 2 >>> random_list.depend("12") 1 >>>
You may need seen that the output for string 12 was 2 and for the “12” was 1. It is as a result of the checklist solely counts the factor which matches the information kind and the worth of the parameter handed.
If a component (For instance – a quantity) will get enclosed in double quotes, then it will get handled as a string else as a numeric kind. To perceive this from depth, we advocate you to go over the tutorial on strings in Python.
How does the Count() perform work?
This technique takes a single argument as the enter which represents the factor whose prevalence to be decided.
It iterates the checklist and counts the variety of cases that match and returns the full variety of depend.
Please word that the List depend technique returns 0 if it receives an invalid or non-existent parameter.
>>> random_list.depend(-1) 0 >>> random_list.depend(0) 0 >>> random_list.depend(1000) 0
The flowchart beneath makes an attempt to elucidate it in a diagram: