TIL: Python Basics Day 4 - random, nested list

Randomisation

randint(1, 10) returns integer btw 1 and 10

import random

random_integer = random.randint(1, 10) 
print(random_integer)

#0.0000 - 4.99999 => *5
random_float = random.random()
print(random.random())

Random is a module. Built in functionality. Also, I can create a module.py for my own use. I can use it just by importing it.

Exercise 4.1 Heads of Tails

Seed for python random module is current timestamp. However, we can change it into anything we want.

#Remember to use the random module 👇
import random

# 🚨 Don't change the code below 👇
test_seed = int(input("Create a seed number: "))
random.seed(test_seed)
# 🚨 Don't change the code above 👆

#Write your code below this line 👇

coin_toss = random.randint(0, 1)

if coin_toss == 0:
  print("Tails")
else:
  print("Heads")

List: indexing

Data structure. Variable is for one piece of data. But list is for groupped data.

List has an order.

first itme starts with "0". '-1' is last one.

To alter the existing data in the list, simply

list[1] = changedtothis

list.append("addthis")
list.extend : adding a list in the end of the existing list.

Exercise 4.2 Who's paying?

List index for starting from the end: 0, len()-1

.split()

import random
# 🚨 Don't change the code below 👇
test_seed = int(input("Create a seed number: "))
random.seed(test_seed)

# Split string method
namesAsCSV = input("Give me everybody's names, seperated by a comma. ")
names = namesAsCSV.split(", ")
# 🚨 Don't change the code above 👆

#Write your code below this line 👇

#name = random.choice(names)
#print(f"{name} is going to buy the meal today!")


num_items = len(names)

random_choice = random.randint(0, num_items - 1)

person_pay = names[random_choice]
print(person_pay)

Nested Lists

map[first][second] = "X"
to approach the index in the nested lists
Bigger list to small ones..

# 🚨 Don't change the code below 👇
row1 = ["⬜️","⬜️","⬜️"]
row2 = ["⬜️","⬜️","⬜️"]
row3 = ["⬜️","⬜️","⬜️"]
map = [row1, row2, row3]
print(f"{row1}\n{row2}\n{row3}")
position = input("Where do you want to put the treasure? ")
# 🚨 Don't change the code above 👆

#Write your code below this row 👇

row = int(position[0]) - 1
column = int(position[1]) - 1

map[row][column] = "X"

#Write your code above this row 👆

# 🚨 Don't change the code below 👇
print(f"{row1}\n{row2}\n{row3}")

Project. Rock Paper Scissor

rock = '''
    _______
---'   ____)
      (_____)
      (_____)
      (____)
---.__(___)
'''

paper = '''
    _______
---'   ____)____
          ______)
          _______)
         _______)
---.__________)
'''

scissors = '''
    _______
---'   ____)____
          ______)
       __________)
      (____)
---.__(___)
'''

import random

user = input("What do you choose? Type 0 for Rock, 1 for Paper or 2 for Scissors. \n")

list = [rock, paper, scissors]
user_choice = int(user)
print(list[user_choice])

num = [0, 1, 2]
computer_choice = random.choice(num)
computer = list[int(computer_choice)]
print(f"Computer Chose:{computer}")


#my code for "If part". 
if user_choice == 0:
  if computer_choice == 0:
    print("same")
  elif computer_choice == 1:
    print("you lose")
  else:
    print("you win")

elif user_choice == 1:
  if computer_choice == 0:
    print("you win")
  elif computer_choice == 1:
    print("same")
  else:
    print("you lose")

else:
  if computer_choice == 0:
    print("you lose")
  elif computer_choice == 1:
    print("you win")
  else:
    print("same")

Programming is an open book exam!