Pretty print Functions

 

Pretty print Functions

Let's build a pretty print subroutine! 
When we have a list of data, being able to print out that data in pretty ways is something we need to be able to do. So "pretty printing" is actually a thing.

import os, time

listOfEmail = []

def prettyPrint():

  os.system("clear") # start by clearing the screen

  print("listofEmail") # print the title of my program

  print() # print a blank line

  for email in listOfEmail: # use for loop to access list

    print(email)

  time.sleep(1)

while True:

  print("SPAMMER Inc.")

  menu = input("1. Add email\n2: Remove email\n3. Show emails\n4. Get SPAMMING\n> ")

  if menu == "1":

    email = input("Email > ")

    listOfEmail.append(email)

  elif menu =="2":

    email = input ("Email > ")

    if email in listOfEmail:

      listOfEmail.remove(email)

    prettyPrint()  

  time.sleep(1)

  os.system("clear")

Creating a Numbered List

We can also ensure our list prints as a numbered list. Let's make this happen by making these few changes below to our subroutine. This code snippet only shows the subroutine so we can focus on the changes there:

import os, time
listOfEmail = []


def prettyPrint():
os.system("clear")
print("listofEmail")
print()
counter = 1
for email in listOfEmail:
print(f"{counter}: {email}")
counter += 1
time.sleep(1)

while True:
print("SPAMMER Inc.")
menu = input("1. Add email\n2: Remove email\n3. Show emails\n4. Get SPAMMING\n> ")
if menu == "1":
email = input("Email > ")
listOfEmail.append(email)
elif menu =="2":
email = input ("Email > ")
if email in listOfEmail:
listOfEmail.remove(email)
elif menu == "3": # we added this elif
prettyPrint() # called our subroutine here
time.sleep(1)
os.system("clear")

len counts how many items are in a list. In this case, it is starting at 0 and then keeps going until it reaches the end of our data inside our list. We can now eliminate the counter variable because we are counting with index.

We do need to access email in a different way now. We are going to use the actual list name itself and then [index] to access the index.

Coding Challenge :

 Print out the first 10 email addresses with a custom email sent to each of those people.
Print one email at a time, pause, and then clear the screen before the next email is printed.

import os, time

listOfEmail = []

def prettyPrint():

  os.system("clear")

  print("listOfEmail")

  print()

  counter = 1

  for email in listOfEmail:

    print(f"{counter}: {email}")

    counter+=1

  time.sleep(1)

def spam(max):

  for i in range(0,max):

    print(f"""Email {i+1}

Dear {listOfEmail[i]}

It has come to our attention that you're missing out on the amazing Replit 100 days of code. We insist you do it right away. If you don't we will pass on your email address to every spammer we've ever encountered and also sign you up to the My Little Pony newsletter, because that's neat. We might just do that anyway.

Love and hugs,

Ian Spammington III""")

    time.sleep(1)

    os.system("clear")

while True:

  print("SPAMMER Inc.")

  menu = input("1: Add email\n2: Remove email\n3: Show emails\n4: Get SPAMMING\n> ")

  if menu == "1":

    email = input("Email > ")

    listOfEmail.append(email)

  elif menu== "2":

    email = input("Email > ")

    if email in listOfEmail:

      listOfEmail.remove(email)

  elif menu == "3":

    prettyPrint()

  elif menu =="4":

    spam(10)

  time.sleep(1)

  os.system("clear")

Coding Challenge : 
Build a really cool to do list manager. 
We are going to upgrade the last to do list manager we created: Create a menu where the user can view, add, or remove an item.
The user should be able to edit the text of an item on the list too.
Don't allow the user to add duplicates.
Double check with the user they want to remove an item from the list before it is actually removed. (Is this the item they really want to remove?)
Give the user the option to completely erase the to do list. 

import os, time

toDoList = []

def printList():

  print()

  for items in toDoList:

    print(items)

  print()

while True:

  menu = input("ToDo List Manager\nDo you want to view, add, edit, remove or delete the todo list?\n")

  if menu=="view":

    printList()

  elif menu=="add":

    item = input("What do you want to add?\n").title()

    toDoList.append(item)

  elif menu=="remove":

    item = input("What do you want to remove?\n").title()

    check = input("Are you sure you want to remove this?\n")

    if check[0]=="y":

      if item in toDoList:

        toDoList.remove(item)

  elif menu=="edit":

    item = input("What do you want to edit?\n").title()

    new = input("What do you want to change it to?\n").title()

    for i in range(0,len(toDoList)):

      if toDoList[i]==item:

        toDoList[i]=new

  elif menu=="delete":

    toDoList = []

  time.sleep(1)

  os.system('clear')