Contents
- pick4winner.py
- pick4winner_start.py
- search.py
- string_compare.py
- string_methods.py
- survey.py
pick4winner.py 1/6
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# Simulate Pick 4 lottery game - selecting ping pong balls at random
# Modified to figure out if the user entered the winning number
# By CSCI111
from random import *
# define constants that are easy to change so that our
# program is flexible
NUM_PICKS = 4
MIN_VALUE = 0
MAX_VALUE = 9
NUMFORMAT="####"
# start with a hardcoded number before getting user input
pickedNum = input("What is your pick? (Format: " + NUMFORMAT + ") ")
###### TODO: handle bad input ######
# Generate the winning number
winningNum = ""
for x in range(NUM_PICKS):
randnum = randint(MIN_VALUE, MAX_VALUE)
# add randnum as a string to winningNum
# so that they are side-by-side
randnumStr = str(randnum)
winningNum = winningNum + randnumStr
# winningNum = winningNum + str(randnum)
# winningNum += str(randnum)
# Display the winning number
print("The winning number is", winningNum)
# Check if the user won, display
if pickedNum == winningNum:
print("You won! Can we be friends?")
else:
print("Sorry.")
pick4winner_start.py 2/6
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# Simulate Pick 4 lottery game - selecting ping pong balls at random
# Modified to figure out if the user entered the winning number
# By CSCI111
from random import *
# define constants that are easy to change so that our
# program is flexible
NUM_PICKS = 4
MIN_VALUE = 0
MAX_VALUE = 9
NUMFORMAT="####"
# start with a hardcoded number before getting user input
pickedNum = "1234"
#pickedNum = input("What is your pick? (Format: " + NUMFORMAT + ") ")
###### TODO: handle bad input ######
#
search.py 3/6
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# Demonstrate use of "in" operator for strings as well
# as an if test
# Sara Sprenkle
# QUESTION: Why is this a constant?
PYTHON_EXT = ".py"
filename = raw_input("Enter a filename: ")
if filename[-(len(PYTHON_EXT)):] == PYTHON_EXT:
print "That's a name for Python script"
if PYTHON_EXT in filename:
print "That filename contains", PYTHON_EXT
# QUESTION: SHOULD THIS BE AN IF/ELIF?
# What is the impact of that change?
string_compare.py 4/6
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# Program compares two strings
# by Sara Sprenkle
str1 = input("Enter a string to compare: ")
str2 = input("Compare '" + str1 + "' with what string? ")
print("-" * 40)
if str1 < str2 :
print("Alphabetically,", str1, "comes before", str2 + ".")
elif str1 > str2:
print("Alphabetically,", str2, "comes before", str1 + ".")
else:
print("You tried to trick me!", str1, "and", str2, "are the same word!")
string_methods.py 5/6
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# Manipulate strings, using methods
# by Sara Sprenkle
sentence = input("Enter a sentence to mangle: ")
length = len(sentence)
# Question: What does the statement below do?
print("*", sentence.center(int(length*1.5)), "*")
upperSentence = sentence.upper()
print(upperSentence)
print(sentence)
print("Uppercase: ", sentence.upper())
print()
print("Lowercase: ", sentence.lower())
print()
# Answer before running...
print("Did sentence change?: ", sentence)
survey.py 6/6
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# Demonstrate use of constants, string concatenation
# by CS111
import sys
from random import *
SCALE_MIN=0
SCALE_MAX=100
DIVIDER_LENGTH=70
NUM_TIMES=3
divider="-"*DIVIDER_LENGTH
print(divider)
prompt = "On a scale of " + str(SCALE_MIN) + " to " + str(SCALE_MAX)
# broke up into 2 lines because ran out of room
prompt += ", what do you think of Ryan Gosling? "
for whichTime in range(NUM_TIMES):
# ask once, with wise crack
rating = float(input(prompt))
if rating < SCALE_MIN or rating > SCALE_MAX:
print("Your rating is not in the valid range", SCALE_MIN, "to", SCALE_MAX)
sys.exit(1)
responseType = randint(0,3)
if responseType <= 1:
print(rating,"?!? That's more than I do.")
elif responseType == 2:
print("yup, right on.")
else:
print("Nah,", rating, "is much too low.")
print(divider)
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