What is the Python equivalent of a switch statement?

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#1

What is the Python equivalent of a switch statement?

#2

In Python, the equivalent of a switch statement is often implemented using a dictionary mapping. Here’s a basic example:

def switch_case(argument):
    switcher = {
        1: "January",
        2: "February",
        3: "March",
        # and so on...
    }
    return switcher.get(argument, "Invalid month")

Usage:

month_name = switch_case(3)
print(month_name)

Output:

March

#3

Another approach is to use a series of if-elif-else statements:

def switch_case(argument):
    if argument == 1:
        return "January"
    elif argument == 2:
        return "February"
    elif argument == 3:
        return "March"
    # and so on...
    else:
        return "Invalid month"

Usage:

month_name = switch_case(3)
print(month_name)

Output: March

#4

Alternatively, you can use a class-based approach:

class Switcher: def case_1(self): return “January”

def case_2(self):
    return "February"

def case_3(self):
    return "March"

def default(self):
    return "Invalid month"

def switch(self, argument):
    # Get the method from 'self' by name
    method = getattr(self, 'case_' + str(argument), self.default)
    # Call the method as we return it
    return method()

Usage:

s = Switcher() month_name = s.switch(3) print(month_name)

Output:

March