Contents
- pick4winner_alt.py
- pick4winner.py
- search.py
- string_compare.py
- string_iteration.py
- survey.py
pick4winner_alt.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="####"
pickedNum = input("What is your pick? (Format: " + NUMFORMAT + ") ")
winningNum = ""
won = True
print("The winning Pick 4 lottery number is ", end='')
for i in range(NUM_PICKS):
randNum = randint(MIN_VALUE,MAX_VALUE)
print(randNum, end='')
# If they don't match, we know the user didn't win
if str(randNum) != pickedNum[i]:
won = False
print()
if won:
print("Congratulations! You are very lucky and rich!")
print("We should be friends!")
else:
print("Sorry, you lost.")
pick4winner.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="####"
pickedNum = input("What is your pick? (Format: " + NUMFORMAT + ") ")
winningNum = ""
for i in range(NUM_PICKS):
winningNum += str(randint(MIN_VALUE,MAX_VALUE))
print("The winning Pick 4 lottery number is ", winningNum)
print()
if winningNum == pickedNum:
print("Congratulations! You are very lucky and rich!")
print("We should be friends!")
else:
print("Sorry, you lost.")
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 ?
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_iteration.py 5/6
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# Iterating through strings
# by Sara Sprenkle
phrase = input("Enter a phrase: ")
print("Iterate through phrase, using characters:")
for char in phrase:
print(char)
print()
print("Iterate through phrase, using positions of characters:")
for pos in range(len(phrase)):
print(pos, phrase[pos])
survey.py 6/6
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# Demonstrate use of constants, string concatenation
# by CS111
import sys
SCALE_MIN=1
SCALE_MAX=10
DIVIDER_LENGTH=70
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? "
# ask once, with wise crack
rating = eval(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)
print(rating,"?!? That's more than I do.")
print(divider)
# ask again, with wise crack
rating = eval(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)
print("Nah,", rating, "is much too low.")
print(divider)
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