Python switch case statement is a powerful and important feature for controlling the program’s execution. The Python switch statement is a multiway branch statement in Python, and it compares the values of declared variables with the values provided in the case statement
It control flow based on variable values or expressions. A programmer can use it to execute various code blocks; it depends on the value of a variable during runtime. Python, unlike most programming languages, lacks a built-in switch case or statement. Dictionary mapping method used to implement the switch case statement in Python.
Table of Contents
Implementation of Python Switch Case Statement
We will implement the case statement in which we will add values of the cases from 0 to 9. The inputs are given from 0 to 9; at each number, there will be a case value assigned. For creating a case statement, we will create a dictionary first because, as we know, Python does not support switch statements directly.
In Python, we can perform a switch case by dictionary mapping, and after creating a dictionary as a switch variable, we will define the switch cases in that. After that we will call the switch method and dictionary object. Once calling the function objects we will get the output.
After doing all that code, we will run the code multiple times to see the different cases. As we have defined argument list from 0 to 9, it will return the assigned value to the number while entering a number in that range. If we enter the input argument out of range or choose incorrect option, it will return nothing. The result will be depend on user input. So, let’s implement the code example with complete syntax.
Example Code File: Python Switch with input or Python Switch Function Call
def SwitchExample(argument):
switcher = {
0: " Case Zero ",
1: " Case One ",
2: " Case Two ",
3: " Case Three ",
4: " Case Four ",
5: " Case Five ",
6: " Case Six ",
7: " Case Seven ",
8: " Case Eight ",
9: " Case Nine ",
}
return switcher.get(argument, "nothing")
if __name__ == "__main__":
argument = int(input("Enter a number to know the case value: "))
print (SwitchExample(argument))
Output
As we saw numbers in above example, we can use this method to find month in the same way. If we enter correct month it will return the name of month in string literals and if we enter incorrect month it will return invalid month in the resultant string as we saw in above video. Also, we can use the conditional statements like if-else-if ladder to get the desired output.
Conclusion
In conclusion, the Python Switch case statement was examined. As Python programming language does not have in-built switch-case construct, we can use switch case alternatives that are dictionary mapping, class and if-elif-else ladder. We created a function, and inside it, a dictionary is defined as a switcher. Values are assigned to each case.
It will return the value on the function call. We have done a coding example in which these things are performed that will make your concepts more straightforward.
