* Dear reader, you may consider re-sizing screen smaller than 90%; potentially removing the need to scroll right to view the code (I’ve re-written it with more vertical lines to make it more visual-friendly).
# Inspired by Andy Sterkowitz (GitHub post, 3 Levels of Portfolio Projects. https://github.com/andysterks/three-levels-of-projects; 3 Types of Projects That Will Make You a Programmer. https://www.youtube.com/watch?v=RYE0QQKJI9o).
# Reinforcing/refining Python fundamentals and problem-solving
# KIV enhance speed by replacing <if> + <elif> + <else> loops with hash/lookup tables e.g. dictionaries or tuples (see Nicholas Obert. Nov 1, 2021. https://betterprogramming.pub/get-rid-of-excessive-if-else-statements-with-lookup-and-hash-tables-c7dbed808996; Parewa Labs Pvt Ltd. accessed 1 Aug 2022. Python Lists Vs Tuples. https://www.programiz.com/python-programming/list-vs-tuples).
# Algorithm (problem-solving recipe/logic) uses: risk classification, test grading, commission amounts etc.
***
Given the below, create a programme to provide estimated license fees.
def biz_license_cost():
# prints only once
print("Welcome to your yearly",end=" ") # same line
print("business licence cost estimator!")
print() # prettier layout
'''
Extended comments
Completed - 2022 Jul 29
Lines 40 to 46
<while True> + <try> + <except> + <else>
with <float>, for decimals:
validates user input without crashing.
Lines multiple <break>
ensures the loop ends and exits the programme.
Line 59 <else>
resolves negative number input.
Line 64 <else>
covers final scenario for sales_amount > 500000,
and provides licence cost.
Note to self
Ensure alignment: <try> + <except> + <else>.
<finally>, unused, is only other
part of this Exception process.
Further study
Al Sweigart. 2019. accessed 2022 Jul 29.
San Francisco. No Starch Press.
Automate the Boring Stuff with Python, 2nd Edition.
Chapter 8.
https://automatetheboringstuff.com/2e/chapter8/.
'''
while True:
try:
sales_amount = float(input("Enter positive sales_amount $:"))
except:
print("Do only enter +ve",end=" ")
print("amount without symbols")
else:
if 0 < sales_amount <= 50000:
print("License -> $25",end=" ")
print("/ Cat One")
break
elif (50000 < sales_amount <= 150000):
print("License -> $200",end=" ")
print("/ Cat Two")
break
elif (150000 < sales_amount <= 500000):
print("License -> $1000",end=" ")
print("/ Cat Three")
break
else:
if int(sales_amount) < 0:
print("License -> None:",end=" ")
print("please reconsider your business options.")
break
else:
print("License -> $5000",end=" ")
print("/ Cat Four")
break
biz_license_cost() # run function
chenweilun2014 