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Conditional Expressions (If/Else or IF/Elif/Else conditions) in Python

Sometimes we want to go outside if its a weekend. 

Sometimes we want to eat ice-cream if its hot.

Sometimes we go for a party with our friends if our parents allow.

All these are the decisions which depends upon a condition. In python programming too, we must met those condition to take a decision. 
For example :- If the value of variable i is 2. Then we will print the value of i if it is greator than 3. Then in this example our condition doesn't met properly. So as a result nothing will be printed. 

So here to give these commands to the computer, we must know the syntax.

Here we need If/Else condition or if there are many conditions then we will apply If/Elif/Else condition.

So lets take an example :-




Now we have understood how to apply if/else condition lets take one more example :-




Use of "and " in the conditions



Use of "or" in the condition




Now we have understood, how to use if/else conditions.

Implementation of if/elif/else condition

If , elif and else statements are a multiway decision taken by our programme due to certain conditions in our code.

Now we will write a programme, in which user will give the input as age and the programme will decide what would be the price of train ticket. If the input is age then the price will be printed.




Properties of Elif :-

1.) There can be any number of elif statements.
2.) Last state i.e. the else statement is only implemented if all elif fails to satisfies the condition.


So thats it in conditional expression rest depends on your practice. If you like this free of cost course then share it with your friends and help them in learning python.




                                                                           John Veer
                                              Contact mail id  -  john.veer.utube@gmail.com
                                                                  Thanks for reading !

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