Vocabulary and Symbols

Question 1

break

Answer 1

while True: break

stop loop right now

Question 2

class

Answer 2

class Person(object)

define a class

Question 3

assert

Answer 3

assert False, “Error!”

assert (ensure) that something is true

Question 4

continue

Answer 4

while True: continue

don’t process more of the loop, do it again

Question 5

elif

Answer 5

else:

if:

Question 6

except

Answer 6

except ValueError, e: print e

if an exception happens, do this

Question 7

exec

Answer 7

exec ‘print “hello” ‘

run as a string in Python

Question 8

finally

Answer 8

finally: pass

exceptions or not, finally do this no matter what

Question 9

from

Answer 9

x from y

import a module into this one to use

Question 10

global

Answer 10

global x

declare that you want a global variable

Question 11

is

Answer 11

1 is 1 == True

like == to test equality

Question 12

lambda

Answer 12

s = lambda y: y ** y; s(3)

create a short, anonymous function

Question 13

not

Answer 13

not True == False

logical not

Question 14

or

Answer 14

True or False == True

logical or

Question 15

pass

Answer 15

def empty( ): pass

this block is empty

Question 16

raise

Answer 16

raise ValueError(“No”)

raise an exception when things go wrong

Question 17

return

Answer 17

def X( ): return Y

exit the function with a return value

Question 18

try

Answer 18

try: pass

try this block, and if exception, go to “except”

Question 19

yield

Answer 19

def X( ): yield Y; X( ).next( )

pause here and return to caller