PCAP-31-03 Questions and Answers

chr (ord (x)) = = x

ord (ord (x)) = = x

chr (chr (x)) = = x

ord (chr (x)) = = x

len ('' ' '') == 2

len ( ' ' ' 12

34 ' ' ') == 4

chr (ord('z') - 1 == 'Y'

ord (''0'') - ord (''9'') == 10

the constructor must have at least one parameter

the constructor must return a value other than None

the constructor is a method named_init_

there can the more than one constructor in a Python class.

it outputs -1

the code is erroneous and it will not execute

it outputs 1

it outputs 0

zero

five

seven

three

three

one

two

four

From pymod import ‘

Pymod.pyfun ( )

Import pymod

Pymod. Pyfun ( )

Import pyfun from pymod

Pyfun ( )

From pymod import pyfun

Pyfun ( )

the__name__variable content determines the way in which the module was run

a package can be stored as a tree of sub-directories/sub-folders

__pycache__is the name of a built-in variable

hashbang is the name of a built-in Python function

open () is a function which returns an int that represents a physical file handle

the second open () argument is optional

instd, outstd, errstd are the names of pre-opened streams

if invoking open () fails, the value None is returned

base class locations (addr)

base class objects (class)

base class names (str)

base class ids (int)

.3423e2

3423e-2

.3423e-2

3423e2

it outputs 2

it raises an exception

it outputs 3

it outputs 5

dir={'Mom':5551234567, 'Dad':5557654321>

dir={'Mom':'5551234567', * Dad':'5557654321'}

dir={Mom:5551234567, Dad:5557654321}

dir={Mom:'5551234567', Dad:'5557654321'}

fun(b=1)

fun (a=0)

fun(b=1, 0)

fun (1)

it outputs list assignment index out of range

the code is erroneous and it will not execute

it outputs

it outputs error

True lower

True upper

False upper

False lower

if a real-life object can be described with a set of adjectives, they may reflect a Python object method

the same class can be used many times to build a number of objects

each object of the same class can have a different set of methods

a subclass is usually more specialized than its superclass

sequential

named

positional

keyword

2 2

1 3

1 2 3

2 2 3

_upper_

_bases_

_ancestors_

_super_

the code is erroneous and it will not execute

it outputs 'tuple' object does not support item assignment

0it outputs list assignment index out of range

it outputs None

an integer value identifying an opened file

an error code (0 means success)

a stream object

always None

it outputs -2

it outputs 2. 0

it outputs 0. 0

the code is erroneous and it will not execute

a == b

b {1} == 4

a is not None

a (2) == 4

for

True

true

For

four chars

three chars

one char

two chars

two

zero

one

three

It outputs 3.

It outputs 1.

It outputs 6.

It raises an exception

the code is erroneus and it will not execute

it outputs [2, 4]

it outputs [4, 2]

it outputs [0, 1, 2, 3, 4]

'in not' in 'not'

'in' in 'Thames'

't' . upper ( ) in 'Thames'

'in' in 'in'

it outputs 6

it outputs 1

it outputs 3

it raises an exception

it outputs False

it outputs True

it raises an exception

it outputs nothing

it outputs error

it outputs list assignment index out of range

the code is erroneous and it will not execute

it outputs

a code point is a point inside the code when execution stops immediately

an escape sequence can be recognized by the # sign put in front of it.

UTF-8 is one of the ways of representing UNICODE code points.

ASCII is the name of a character coding standard

yes, by using the hasattr attribute

yes, by using the hasattr ( ) method

yes, by using the hassattr ( ) function

no, it is not possible

encapsulation allows you to protect some data from uncontrolled access

the arrows on a class diagram are always directed from a superclass towards its subclass

inheritance is the relation between a superclass and a subclass

an object is a recipe for a class

you can make an alias for the name using the alias keyword

nothing, you need to come to terms with it

you can shorten it to alpha. zeta and Python will find the proper connection

you can make an alias for the name using the as keyword

ch = read(s, 1)

ch = s. input(1)

ch = input(s, 1)

ch = s. read(l)

1

0

2

the variable becomes unavailable

print 4321

print

cause a runtime exception

print 1234

it outputs 1

it outputs 2

the code is erroneous and it will not execute

it outputs 3