Catalog of Python Errors

README.md

Enter a python error message, and the example code that caused that error.

bill_total = str(raw_input('What was the total bill? '))
service_rating = raw_input('Rate the service (Good, Fair, or Bad): ')
split_bill = float(raw_input('Split the bill how many ways? (1 for none): '))

if service_rating == 'Good':
    tip_total = bill_total * 0.20
elif service_rating == 'Fair':
    tip_total = bill_total * 0.15
elif service_rating == 'Bad':
    tip_total = bill_total * 0.10
else:
    print 'Please Type Good, Fair, or Bad as a rating.'

Gets this error:

Traceback (most recent call last):
  File "tip_calculator.py", line 8, in <module>
    tip_total = bill_total * 0.15
TypeError: can't multiply sequence by non-int of type 'float'

This code:

name = float("What is your name?")
print "Hello, %s!" % name

Gives this error:

$ python hello.py
Traceback (most recent call last):
  File "hello.py", line 1, in <module>
    name = float("What is your name?")
ValueError: could not convert string to float: What is your name?

name = raw_input("WHAT IS YOUR NAME? ")

print "HELLO, %s" % name.upper()
print "YOUR NAME HAS %d LETTERS IN IT! AWESOME!" % name.len()

Gets this error:

$ python hello2.py 
WHAT IS YOUR NAME? Juan
HELLO, JUAN
Traceback (most recent call last):
  File "hello2.py", line 4, in <module>
    print "YOUR NAME HAS %d LETTERS IN IT! AWESOME!" % name.len()
AttributeError: 'str' object has no attribute 'len'

name = raw_input("What's your name ")
mario = raw_input("what's your favorite Mariokart character? ")
print "%s's favorite Mariokart character is %" % (name, mario)

regurgitates this error:

pythonpractice1\ $ python madlib.py
What's your name kirk
what's your favorite Mariokart character? toad
Traceback (most recent call last):
  File "madlib.py", line 3, in <module>
    print "%s's favorite Mariokart character is %" % (name, mario)
ValueError: incomplete format
pythonpractice1\ $ 

day = raw_input("Day (0 - 6)?")

if 0 < day < 6:
    print "You gotta go to work!"
else:
    print "Freedom!"

This doesn't return an error, but the code doesn't work as intended in that whatever the user inputs, the message will be the same ("Freedom!") since it doesn't register as a number to put into the "0 < day < 6" if-clause. So, you gotta figure out the error through testing.

import random
x = 0 + "babygurl"

  File "dc_exercise_guess_num.py", line 2, in <module>
    x = 0 + "babygurl"
TypeError: unsupported operand type(s) for +: 'int' and 'str'

First part of the tip_calc2.py code that I messed up:

total = float(raw_input("Total bill amount? "))
service = raw_input(("Level of service?  Good, fair, or bad? " )).low()
guests = float(raw_input("Split how many ways? "))

Spits this:

Total bill amount? 34
Level of service?  Good, fair, or bad? bad
Traceback (most recent call last):
  File "tip_calc2.py", line 2, in <module>
    service = raw_input(("Level of service?  Good, fair, or bad? " )).low()
AttributeError: 'str' object has no attribute 'low'

This code:

name = int("What is your name?")
print "Hello, %s!" / name

This error:

$ python hello.py
Traceback (most recent call last):
  File "hello.py", line 1, in <module>
    name = int("What is your name?")
ValueError: invalid literal for int() with base 10: 'What is your name?'

def guessingGame():
    my_random_number = random.randint(1, 20)

guess = 5

while guess > 0:

    guess =- 1
    myNum = int(raw_input("Whats the number?: "))
    if myNum == my_random_number:
        print "Yes! You win!"
        break
    if myNum > my_random_number:
        print "%d is too high" % myNum
        print "You have %d guesses left" % guess

    else:
        print "%d is too low" % myNum
        print "You have %d guesses left" % guess

print "You're out of guesses!"
print "Would you like to play again (Y or N)? "

again = raw_input().upper()

if again == "Y":
guessingGame()
else:
print "Bye!"

guessingGame()

output:

You have -1 guesses left
-bash: You: command not found
$ You're out of guesses!

> Would you like to play again (Y or N)? 
> 
> ```
> ```

week = ["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"]
day_of_week = int(raw_input("Please give a day of week (0-6) 0 is Sunday."))
if day_of_week == 0 or day_of_week == 6:
    print "It is %d, sleep in." % week day_of_week]
else:
    print "It is %f, go to work." % week[day_of_week]

Produces this error:

$ python day_of_week.py 
  File "day_of_week.py", line 4
    print "It is %d, sleep in." % week day_of_week]
                                                 ^
SyntaxError: invalid syntax

week = ["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"]

day_of_week = int(raw_input("Please give a day of week (0-6) 0 is Sunday."))
print "It is %s." % week(day_of_week)

produces this error when a day of the week (number) is entered

>python errortest.py
    Please give a day of week (0-6) 0 is Sunday.0
    Traceback (most recent call last):
         File "errortest.py", line 4, in <module>
             print "It is %s." % week(day_of_week)
        TypeError: 'list' object is not callable

unpacking argv
from sys improt argv

script, first, second, third = argv

print "The script is called:", script
print "Your first variable is:", first
print "Your second variable is:", second
print "Your third variable is:", third



$ python ex13.py
Traceback (most recent call last):
  File "ex13.py", line 3, in <module>
    script, first, second, third = argv
ValueError: need more than 1 value to unpack

This:

print "Please fill in the blanks below:"
print "____(name)____'s favorite subject in school is ____(subject)____."
name = raw_input("What is name? ")
subject = raw_input("What is subject? ")
print "%s's favorite subject in school is %s.'' % (name, subject)

That:

$ python madlib.py 
  File "madlib.py", line 5
    print "%s's favorite subject in school is %s.'' % (name, subject)
                                                                    ^
SyntaxError: EOL while scanning string literal

# Tip calculator 2

bill = float(raw_input("What is the total bill amount? "))
service = raw_input("What is the level of service? (good, fair, or bad) ")
split = int(raw_input("Split how many ways? "))
good = .20
fair = .15
bad = .10

if service == "good":
    tip = good * bill
elif service == "fair":
    tip = fair * bill
elif service == "bad":
    tip = bad * bill
else:
    print "Try again later and choose a level of service between good, fair and bad"

print "Tip amount is: $.2f" % tip
print "Total amount is: $%.2f" % (tip + bill)
print "Amount per person is: $%.2f" % ((tip + bill) / split)

Gets this error:

python_ex1\ $ python tip_calc2.py 
What is the total bill amount? 100
What is the level of service? (good, fair, or bad) good
Split how many ways? 2
Traceback (most recent call last):
  File "tip_calc2.py", line 17, in <module>
    print "Tip amount is: $.2f" % tip
TypeError: not all arguments converted during string formatting

File "day_of_the_week.py", line 1
week = raw + 'Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday']
^
SyntaxError: invalid syntax

bill = float(raw_input("How much was the bill? "))
service = str.upper(raw_input("How was the service (Good, Bad, OK)? "))
customer = float(raw_input("Split how many ways? "))

if service == "GOOD":
    print "Tip amount is $%.2f."  ((bill * .20))
    print "Total is $%.2f." % ((bill + (bill * .20)))
    print "Amount per person: $%.2f." % ((((bill + (bill * .20))) / customer))

elif service == "BAD":
    print "Tip amount is $%.2f." % ((bill * .10))
    print "Total is $%.2f." % ((bill + (bill * .10)))
    print "Amount per person: $%.2f." % ((((bill + (bill * .20))) / customer))

else:
    print "Tip amount is $%.2f." % ((bill * .15))
    print "Total is $%.2f." % ((bill + (bill * .15)))
    print "Amount per person: $%.2f." % ((((bill + (bill * .20))) / customer))

My convoluted code, missing the % in the first line of the if print statement, returns this error:

 python tip_calc2.py 
How much was the bill? 20
How was the service (Good, Bad, OK)? good
Split how many ways? 5
Traceback (most recent call last):
  File "tip_calc2.py", line 6, in <module>
    print "Tip amount is $%.2f."  ((bill * .20))
TypeError: 'str' object is not callable

name = raw_input("what is your name? ".upper()).upper()
name_length = len(name)
print "HELLO %s YOUR NAME HAS %d LETTERS IN IT." % name, name_length

Gets this error:

~/Downloads/student-solutions: python hello2.py 
WHAT IS YOUR NAME? we
Traceback (most recent call last):
  File "hello2.py", line 3, in <module>
    print "HELLO %s YOUR NAME HAS %d LETTERS IN IT." % name, name_length
TypeError: not enough arguments for format string

week = ["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"]

day_of_week = int(raw_input("Please give a day of week (0-6) 0 is Sunday.  "))
print "It is %s." % week[day_of_week]

produces this error when an invalid day of the week is entered

python errortest.py
Please give a day of week (0-6) 0 is Sunday.  7
Traceback (most recent call last):
  File "errortest.py", line 4, in <module>
    print "It is %s." % week[day_of_week]
IndexError: list index out of range