Program for Rock Paper Scissor Game in Python

This is the 8th exercise of practicepython.

Exercise:

Make a two-player Rock-Paper-Scissors game. (Hint: Ask for player plays (using input), compare them, print out a message of congratulations to the winner, and ask if the players want to start a new game)
Remember the rules:

• Rock beats scissors
• Scissors beats paper
• Paper beats rock

My Solution is:

Output 1:





Output 2:





GitHub Reference:

https://gist.github.com/pinkpretty/e648c67ba012fc09d0fb963b0a249acc


Happy Coding ! :)

Program to find the even elements in List - Python

This is the practice python 7th exercise.

Exercise:

Let’s say I give you a list saved in a variable: a = [1, 4, 9, 16, 25, 36, 49, 64, 81, 100]. Write one line of Python that takes this list a and makes a new list that has only the even elements of this list in it.


Solution;


The solution is simple if you use list comprehension.

 

Output:





GitHub reference:


Github code:


https://gist.github.com/pinkpretty/48c8e0a700017c54d3352ca12d4117f5


Happpy coding ! :)

Program for String Palindrome in python

This is the 6th Exercise of practicepython.

Exercise

Ask the user for a string and print out whether this string is a palindrome or not. (A palindrome is a string that reads the same forwards and backwards.)


Solution:


String Palindrome in python can be done with [::-1].\


str(n) == str(n)[::-1]


[::-1 ] - this reverse the string and we are comparing with user input string.

Output:





GitHub Reference:


Github code:


https://gist.github.com/pinkpretty/989131c070cc4591a3147c803015e5fd


Happy coding !:)

List Overlap With Example Explained - practicepython Exercise - 5

This is the 5th exercise of practicepython

Exercise:

Take two lists, say for example these two:

  a = [1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89]
  b = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13]

and write a program that returns a list that contains only the elements that are common between the lists (without duplicates). Make sure your program works on two lists of different sizes.
Extras:

1. Randomly generate two lists to test this
2. Write this in one line of Python

I have solved this in 2 ways. Conventional for loop and in one line statement:


For loop Solution

output:




One line Solution:

output:








GitHub Reference:




Github code for loop:


github code for single line:


https://gist.github.com/pinkpretty/ac7ace0e48d519456cd59c1e4a97465a
https://gist.github.com/pinkpretty/b6f1762efcb37a4f69e6f576505e7e39


Happy coding ! :)

Divisors - PracticePython Exercise - 4

Exercise

Create a program that asks the user for a number and then prints out a list of all the divisors of that number. (If you don’t know what a divisor is, it is a number that divides evenly into another number. For example, 13 is a divisor of 26 because 26 / 13 has no remainder.)


There is an easy way to create list. 
 x = range(1,9) which will contain [1,2,3,4,5,6,7,8]


Solution:

Output :



Git Hub reference:


Github code


https://gist.github.com/pinkpretty/f3d4773c334ae24a1dc31f6f8a543ba2


Happy coding! :)

List comprehension explanation with Example - Python

List Comprehension is a concept where you can use to construct list in easy way and it is implemented in python 2.0
It provides a compact way of mapping a list into another list by applying a function to each of the elements of the list.


Lets look at the Example with For loop :

And the output is





This can be done using List comprehension in single line. List Comprehension works on expression.


Exercise:


Take a list, say for example this one:

  a = [1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89]

and write a program that prints out all the elements of the list that are less than 5.
Extras:

1. Instead of printing the elements one by one, make a new list that has all the elements less than 5 from this list in it and print out this new list.
2. Write this in one line of Python.
3. Ask the user for a number and return a list that contains only elements from the original list a that are smaller than that number given by the user.

My Solution:

GitHub Reference: GitHub code


https://gist.github.com/pinkpretty/380b97022f100e37960d2ed0438a6fc5


Happy Coding ! :)

Find Odd or Even in Python: 2rd Exercise of PracticePython

This is the2nd exercise practice Python for beginner


An easy way to find the number is odd or even


Exercise:


Ask the user for a number. Depending on whether the number is even or odd, print out an appropriate message to the user. Hint: how does an even / odd number react differently when divided by 2?
Extras:

1. If the number is a multiple of 4, print out a different message.
2. Ask the user for two numbers: one number to check (call it num) and one number to divide by (check). If check divides evenly into num, tell that to the user. If not, print a different appropriate message.

Solution:

GitHub reference:


Github code


https://gist.github.com/pinkpretty/ffd1cbceb82e1ebaf87761e07ef6644a


Happy coding ! :)

Datetime module in python: Example with Explanation

Datetime module is python has the classes and functions for manipulating date and time.


To manipulate date and time operations in python you have to import datetime module.


"import datetime" 


if you want to know the current date and time the code would be


"get = datetime.datetime.now()"





And the output is:



If you want to extract the information from date and time, then you can do it like


current_year = get.year
current_month = get.month


Example program;
Create a program that asks the user to enter their name and their age. Print out a message addressed to them that tells them the year that they will turn 100 years old.

The output is:

The github reference:


GitHub Code


https://gist.github.com/pinkpretty/577f188fa8bff563ed4d4802efebc5d6/edit

 

 

 

If__name__ = '__main__' main method

When I started python as a beginner, the first thing which was confusing me is If__name__ = “__main__”.  It is mainly used to check whether the module is imported or not.

Usually the code inside ‘If’ block will be executed only, if it ran directly.

Let’s take a closer look at this.

If python interpreter is running the module (m1 )as a main program it sets the __name__ variable to the value __main__. So thus printing the __name__ variable will produce output “__main__”.

Let’s consider we import the module m1 to another module m2.

#m2.py
Import m1

Print m1.__name__

Now if we are printing the __name__ variable which will provide module name ‘m1’ as output.

By giving if __name __ == “__main__” statement, you can check whether your program is being run directly or imported by someone else.