webinar-python-input-patterns-2024-01-13

# Webinar Input Patterns 2024 Jan 13

# input() ALWAYS returns a string

# Some common patterns...
# 1 Recast a numeric string into an int or float
# 2 Breaking up a long string into a list of smaller strings
# 3 Break up a string containing numeric chars into a list of
#       recast ints or floats
# 4 One value tells you how many times to call input()
# 5 We DON'T KNOW how many times to call input(), but we know
#       a sentinel value to stop

# 1 Recast a numeric string into an int or float
# 7  # from input() that's not an integer, it's the string "7"
# myInput = input()
# myInput = float(myInput)
# myInput = int(input())
# print(myInput)
# print(type(myInput).__name__)

# 2 Breaking up a long string into a list of smaller strings
# "Pat Silly Doe" or "Julia Clark"
# myInput = input().split()
# myString.split()
# print(myInput)
# print(type(myInput).__name__)

# 3 Break up a string containing numeric chars into a list of
#       recast ints or floats
# 12 28 34
# myInput = input()
# strList = myInput.split()
# print(strList) # ['12', '28', '34', '88']
#
# numList = []
# for num in strList:
#     numList.append(int(num))
# # we can also do this as a LIST COMPREHENSION
# # expression for thing in container
# # numList = [int(num) for num in strList]
# print(numList)

# 4 One value tells you HOW MANY TIMES to call input()
# Any "known number of times" means a for loop
# 5
# 30.0
# 50.0
# 10.0
# 100.0
# 65.0

# call input() to get the number of times
# numVals = int(input())
# floatList = []
#
# # loop over that range() to get the next inputs
# for n in range(numVals):
#     nextInput = float(input())
#     floatList.append(nextInput)
# print(floatList)

# 5 We DON'T KNOW how many times to call input(), but we know to stop on some SENTINEL VALUE
# this is a WHILE loop condition

# get the first input()
# myInput = input()
# set up a while loop using that var in its condition
# while myInput != "-1":
#     # do whatever we need with that input
#     myInput = input()

# Use a list for multiple sentinel values
# Stop on quit, or done, or d
myInput = input()
quitCommands = ["quit", "done", "d"]

# you could use a Boolean combined condition here but it's simpler to create a list and check membership in it
while not myInput in quitCommands:
    # do your stuff
    myInput = input()