Contents
- file_read_while.py
- loop.py
- therapist.py
- while.py
- whilevsfor.py
file_read_while.py 1/5
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# Opens a file, reads the file one line at a time, and prints the
# contents
# by Sara Sprenkle
FILENAME="data/majors.dat"
# creates a new file object, opening the file in "read" mode
dataFile = open(FILENAME, "r")
# The following code reads in the file,
# line-by-line and displays the contents of the file
line = dataFile.readline()
# the empty string means that we've reached the end of the file.
while line != "":
# The check on the condition happens _before_ we strip off the
# ending whitespace. That ordering is important for correct file handling.
# Note that you don't want to use rstrip() if you want to preserve the
# whitespace at the end of the lines in the file.
line = line.rstrip()
print(line)
line = dataFile.readline()
# close the file with the method "close"
dataFile.close()
loop.py 2/5
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# What does this loop do?
# Sara Sprenkle
count = 1
while count > 0:
print(count)
count += 1
therapist.py 3/5
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# The Very Simple Therapist
# CSCI 111
print("-"*60)
print("Welcome to computerized therapy!")
print("You will get your money's worth.")
print("Our session is over when you have nothing more to tell me.")
print("-"*60)
user_input = input("Tell me what's wrong.\n")
while user_input != "":
user_input = input("How does that make you feel?\n")
print("Thank you! Come again!")
while.py 4/5
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# Demonstrates a simple while loop.
# Trace through program and show what would be output.
# Sara Sprenkle
i = 0
while i < 10 :
print("i equals", i)
i+=1
print("Done", i)
whilevsfor.py 5/5
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# Code to compare a while loop with a for loop
# by Sara Sprenkle
# ---------- WHILE LOOP ----------
print("While Loop Demo")
i=0
while i < 10:
print("i equals", i)
i += 1
print("Done", i)
# ---------- FOR LOOP ----------
print("\nFor Loop Demo")
for i in range(10):
print("i equals", i)
print("Done", i)
# To give exactly the same output as the while loop, would need to print out i+1
Generated by GNU Enscript 1.6.6.