Day 010

Udemy Python Bootcamp Day 010

Function with outputs

def my_function():
  result = 3 * 2 
  return result #output is the result

title()
Return a version of the string where each word is titlecased.More specifically, words start with uppercased characters and all remaining cased characters have lower case.

def format_name(f_name, l_name):
  f_f_name = f_name.title()
  f_l_name = l_name.title()
  return f"{f_f_name} {f_l_name}"

print(format_name("awESOMeE", "kIM"))

#output
Awesomee Kim

return tells the compiter that this is the end of the function.

def format_name(f_name, l_name):
  """Take a first and last name and format it 
  to return the title case version of the name."""
  #Docstrings
  """Docstrings are basically a way for us
  to create little bits of documentation
  as we're coding along in our functions
  or in our other blocks of code."""
  if f_name == "" or l_name == "":
    return "You didn't provide valid inputs."
  formated_f_name = f_name.title()
  formated_l_name = l_name.title()
  return f"Result: {formated_f_name} {formated_l_name}"

#Storing output in a variable
print(format_name(input("What is your first name? "), input("What is your last name? ")))

Days in Month

def is_leap(year):
  if year % 4 == 0:
    if year % 100 == 0:
      if year % 400 == 0:
        return True
      else:
        return False
    else:
      return True
  else:
    return False

def days_in_month(year, month):
  if month > 12 or month < 1:
    return "Invaild month"
  month_days = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]  
  if is_leap(year) and month == 2: #”2”아니라 그냥 2
    #is_leap(year) == True 가 아니라 is_leap(year)자체로 사용됨 <-이것때문에 코딩룸 터미널 에러로 미리 체크 못해서 attempt 5까지 감.......ㅅㅂ
    return 29
  else:
    return month_days[month - 1]
  
year = int(input("Enter a year: "))
month = int(input("Enter a month: "))
days = days_in_month(year, month)
print(days)

Calculator

from art import logo
print(logo)

#Calculator

#Add
def add(n1, n2):
  return n1 + n2

#Subtract
def subtract(n1, n2):
  return n1 - n2

#Multifly
def multifly(n1, n2):
  return n1 * n2

#Divide
def divide(n1, n2):
  return n1 / n2


operations = {
  "+": add, 
  "-": subtract, 
  "*": multifly, 
  "/": divide,
}

num1 = int(input("What's the first number?: "))
for symbol in operations:
  print(symbol)
operation_symbol = input("Pick an operation from the line above: ")
num2 = int(input("What's the second number?: "))
calculation_function = operations[operation_symbol]
answer = calculation_function(num1, num2)


print(f"{num1} {operation_symbol} {num2} = {answer}")

Calculator2.0

def calculator():
  num1 = int(input("What's the first number?: "))
  for symbol in operations:
    print(symbol)
  should_continue = True

  while should_continue:
    operation_symbol = input("Pick an operation: ") 
    num2 = int(input("What's the next number?: "))
    calculation_function = operations[operation_symbol]
    answer = calculation_function(num1, num2)

    print(f"{num1} {operation_symbol} {num2} = {answer}")

    if input(f"Type 'y' to continue calculating with {answer}, or type 'n' to start a new calculation.: ") == "y":
      num1 = answer
    else:
      should_continue = False
      calculator()
      #careful to use function in function. because without contion, it will make a infinite loop.

calculator()

Calculator - Final

from replit import clear
from art import logo

def add(n1, n2):
  return n1 + n2

def subtract(n1, n2):
  return n1 - n2

def multiply(n1, n2):
  return n1 * n2

def divide(n1, n2):
  return n1 / n2

operations = {
  "+": add,
  "-": subtract,
  "*": multiply,
  "/": divide
}

def calculator():
  print(logo)

  num1 = float(input("What's the first number?: "))
  for symbol in operations:
    print(symbol)
  should_continue = True
 
  while should_continue:
    operation_symbol = input("Pick an operation: ")
    num2 = float(input("What's the next number?: "))
    calculation_function = operations[operation_symbol]
    answer = calculation_function(num1, num2)
    print(f"{num1} {operation_symbol} {num2} = {answer}")

    if input(f"Type 'y' to continue calculating with {answer}, or type 'n' to start a new calculation: ") == 'y':
      num1 = answer
    else:
      should_continue = False
      clear()
      calculator()

calculator()