Python Tutorial in 1 Hour for Beginners - Programming With Mosh

Introduction:

I learned Python from "Programming With Mosh" YouTube channel by watching his 1 hour Python for Beginners video available free of cost on his YouTube channel. I learned Python because I wanted to learn "Django" which is a Python framework for building websites. In this post I posted source code for 1 hour video that i watched to learn python

Source Code:

# 1. FIRST PROGRAM IN PYTHON # print("Hello World") # 2. VARIABLES # patientName = "John Smith" # patientAge = 20 # isNew = True # print("Patient Name: ",patientName) # print("Patient Age: ",patientAge) # if isNew==True: # print("New Patient: Yes") # else: # print("New Patient: No") # 3. RECEIVING INPUT FROM THE USER # your_name = input("Enter Your Name: ") # print("Hello",your_name,"Have a nice day") # 4. TYPE CONVERSION # birth_year = int(input("Enter your birth year: ")) # age = 2020 - birth_year # print("Your age:",age) # str() - Convert to String # int() - Convert to Integar # bool() - Convert to Boolean # float() - Convert to Float # EXERCISE: MAKE A BASIC CALCULATOR # first_number = input("Enter 1st Number: ") # second_number = input("Enter 2nd Number: ") # operator = input("Select Operation:\n1.Add \n2.Subtract \n3.Multiply \n4.Divide\n") # if operator=='1': # sum = float(first_number) + float(second_number) # print(first_number,"+",second_number,"=",sum) # elif operator=="2": # subtract = float(first_number) - float(second_number) # print(first_number,"-",second_number,"=",subtract) # elif operator=="3": # multiply = float(first_number) * float(second_number) # print(first_number,"x",second_number,"=",multiply) # elif operator=="4": # divide = float(first_number) / float(second_number) # print(first_number,"/",second_number,"=",divide) # else: # print("Please select correct operator") # 5. STRINGS # course = "Python for Beginners" # print(course.find("for")) # Search for a particular word # print("Beginners" in course) # Alternate to .find() but returns only TRUE and FALSE # print(course.endswith("s")) # Returns true if string ends with "s" # print(course.capitalize()) # Captialize first letter in string # print(course.startswith("P")) # Returns true if string starts with "s" # print(course.upper()) # Returns string with all uppercase letters # print(course.lower()) # Returns string with all lowercase letters # print(course.replace("Python", "JavaScript")) # Replace the characters in string # 6. ARTHEMATIC OPERATIONS # first_number = 5 # second_number = 2 # print("Arthematic Operations") # print("1st Number:", first_number, "\n2nd Number:",second_number) # print(first_number,"+",second_number,"=",first_number+second_number) # print(first_number,"-",second_number,"=",first_number-second_number) # print(first_number,"x",second_number,"=",first_number*second_number) # print(first_number,"/",second_number,"=",first_number/second_number) # print(first_number,"%",second_number,"=",first_number%second_number) # print(first_number,"**",second_number,"=",first_number**second_number) # ARGUMENTED ASSIGNMENT OPERATOR | +=, -=, *=, /= # first_number += 3 # 7. OPERATOR PRECEDENCE # In Python, Operator precedence is same as for Mathematics but we can change it by paranthesis () # result = 10 * 3 + 4 # print(result) # Returns 34 # result = 10 * (3 + 4) # print(result) # Returns 70 # 8. COMPARISON OPERATOR # <, >, <=, >=, !=, == # print(5<3) # print(5>3) # print(5<=3) # print(5>=3) # print(5!=3) # print(5==3) # 9. LOGICAL OPERATORS # and, or, not # price = 10 # print(price>10 and price==10) # print(price>10 or price==10) # print(not price<3) # 10. IF STATEMENTS # age = 25 # if age < 5: # print("You are just born") # elif age < 10: # print("You are kid") # elif age <= 18: # print("You are adult") # else: # print("You are younger than adult") # EXERCISE - WEIGHT CONVERTER # weight = input("Enter Your Weight: ") # unit = input("(K)gs OR (L)bs? ") # if unit=="K" or unit=="k": # converted = float(weight) / 0.45 # print("Weight in lbs:",converted) # elif unit=="L" or unit=="l": # converted = float(weight) * 0.45 # print("Weight in Kgs:",converted) # else: # print("Unit Entered Wrong. Please Try again.") # 11. WHILE LOOPS # i = 1 # while i <= 5: # print(i) # i = i + 1 # FUN PROGRAM WITH WHILE LOOP # i = 1 # while i <= 10: # print(i * "*") # i = i + 1 # 12. LISTS names = ["Usman", "Khalil", "Faheem", "Mohsin", "Hamid"] # print(names) # Printing individual name # print(names[0]) # Number can be negative or positive that is given as an argument # Printing all names using while loop # i = 0 # while i <= 4: # print(names[i]) # i = i + 1 # Changing names in list # names[1] = "Amir" # print(names) # Printing multiple names or elements # print(names[0:2]) # 13. LIST METHODS # numbers = [1,2,3,4,5] # print(numbers) # Adding an element to list at the end # numbers.append(6) # print(numbers) # Adding an element somewhere in the list # numbers.insert(0,0) # first argument is position where element is inserted, second is element that will inserted in the list # print(numbers) # Removing an element from list # numbers.remove(2) # Removing 2 from list # print(numbers) # Removing all items of the list # numbers.clear() # print(numbers) # Searching for particular item in list # print(1 in numbers) # Returns true if item exists otherwise returns false # Printing length of the list # print(len(numbers)) # Returns 5 # 14. FOR LOOPS # for item in numbers: # print(item) # Above same thing with while loop # i = 0 # while i < len(numbers): # print(numbers[i]) # i = i + 1 # 15. The range() function # Generate a sequence of number # numbers = range(5) # print(numbers) # Iterating using for in loop # for item in numbers: # print(item) # numbers = range(0, 12, 2) # 0 is starting value, 12 is ending value and last 2 is jump # for number in numbers: # print(number) # 16. TUPLES # Tuples are same as list but we cannot change them after creating # numbers = (0,1,2,3,3) # If we try to change items of tuple we will get an error # numbers[0] = 2 # Gives an error # print(numbers.count(3)) # Return number of occurances of 3 in tuple # print(numbers.index(3)) # Returns index of occurance of first item in tuple # There are more methods that we can use with tuples. These are starting with underscore. These are called magic methods

YouTube video Link:

https://www.youtube.com/watch?v=kqtD5dpn9C8