#!/usr/bin/env python
# coding: utf-8

# In[4]:


# Section 4.6 -- input validation loops
# How to check (some) inputs
#
# Do input validation on a simple pay calculator
# magic numbers
MAX_HOURS=100 # maximum hours acceptable to the program for
              # one week of work
# we will want to exclude non-positive hours worked
# and we want to exclude non-positive pay_rate
# Ask user for hours worked and pay rate
hours_worked=float(input("How many hours did you work?"))
pay_rate=float(input("What is your pay rate?"))
#
while hours_worked>MAX_HOURS or hours_worked<=0 or pay_rate <=0:
    print("Error with input. Please try again.")
    hours_worked=float(input("How many hours did you work?"))
    pay_rate=float(input("What is your pay rate?"))
print("Your pay is $",format(hours_worked*pay_rate,'.2f'),sep='')


# In[18]:


# updated password program -- locks you out after 5 guesses
# set the password
SECRET_PASSWORD='zugzwang'
# how many guesses can be made before being locked out?
MAX_GUESSES=5
# allow user to insert 
inserted_password=input("What is the password?")
# count variable for # of failed pw guesses
count=0
# validation loop
while inserted_password!=SECRET_PASSWORD and count<MAX_GUESSES-1:
    print("Error. Please try again.")
    if inserted_password!=SECRET_PASSWORD:
        count+=1
    inserted_password=input("What is the password?")
if count==MAX_GUESSES-1:
    print("You have attempted too many times. The administrator has been notified.")
else:
    print("You have inserted the correct password.")


# In[21]:


# Section 4.7 -- Nested Loops
for hour in range(24):
    for minute in range(60):
        for second in range(60):
            print(format(hour,'02d'),":",format(minute,'02d'),":",format(second,'02d'),sep='')


# In[27]:


# Draw a picture
for row in range(15):
    for col in range(6):
        print("*",end='')
    print()