Keywords

Question 1

and

Answer 1

Logical and.

True and False == False

Question 2

as

Answer 2

Part of the with-as statement.

with X as Y: pass

Question 3

assert

Answer 3

Assert (ensure) that something is true.

assert False, “Error!”

Question 4

break

Answer 4

Stop this loop right now.

while True: break

Question 5

class

Answer 5

Define a class.

class Person(object)

Question 6

continue

Answer 6

Don’t process more of the loop, do it again.

while True: continue

Question 7

def

Answer 7

Define a function.

def X(): pass

Question 8

del

Answer 8

Delete from dictionary.

del X[Y]

Question 9

except

Answer 9

If an exception happens, do this.

except ValueError, e: print e

Question 10

exec

Answer 10

Run a string as Python.

exec ‘print “hello”’

Question 11

finally

Answer 11

Exceptions or not, finally do this no matter what.

finally: pass

Question 12

from

Answer 12

Importing specific parts of a module.

from x import Y

Question 13

global

Answer 13

Declare that you want a global variable.

global X

Question 14

in

Answer 14

Part of for-loops. Also a test of X in Y.

for X in Y: pass also 1 in [1] == True

Question 15

is

Answer 15

Like == to test equality.

1 is 1 == True

Question 16

lambda

Answer 16

Create a short anonymous function.

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

Question 17

not

Answer 17

Logical not.

not True == False

Question 18

or

Answer 18

Logical or.

True or False == True

Question 19

raise

Answer 19

Raise an exception when things go wrong.

raise ValueError(“No”)

Question 20

with

Answer 20

With an expression as a variable do.

with X as Y: pass

Question 21

yield

Answer 21

Pause here and return to caller.

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

Question 22

dicts

Answer 22

Stores a key=value mapping of things.

e = {‘x’: 1, ‘y’: 2}

Question 23

lists

Answer 23

Stores a list of things.

j = [1,2,3,4]