Python Online Test
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Created by Guido Van Rossum and initially released to the market in 1991, Python is a high level-programming tool that is for general programming use. How good are you with it? The Python Online Test below has the answer.
- 1.what does the following code do? def a(b, c, d): pass
- A.
Defines a list and initializes it
- B.
Defines a function, which does nothing
- C.
Defines a function, which passes its parameters through
- D.
Defines an empty class
- 2.All keywords in Python are in
- A.
Lower case
- B.
UPPER CASE
- C.
Capitalized
- D.
None
- 3.What gets printed?x = 4.5y = 2print x//y
- A.
2.0
- B.
2.25
- C.
9.0
- D.
20.25
- E.
21
- 4.what is the output of the below program?a = [1,2,3,None,(),[],]print len(a)
- A.
Syntax error
- B.
4
- C.
5
- D.
6
- E.
7
- 5.What gets printed?x = Truey = Falsez = Falseif x or y and z:print "yes"else:print "no"
- A.
Yes
- B.
No
- C.
Fails to compile
- 6.
- A.
A only
- B.
A and D
- C.
A, B, and C
- D.
A, B, and D
- E.
A, B, C, and D
- 7.In python 2.6 or earlier, the code will print error type 1 if accessSecureSystem raises an exception of either AccessError type or SecurityError type try: accessSecureSystem() except AccessError, SecurityError: print "error type 1" continueWork()
- A.
True
- B.
False
- 8.What gets printed?print r"\nwoow"
- A.
New line then the string: woow
- B.
The text exactly like this: r"\nwoow"
- C.
The text like exactly like this: \nwoow
- D.
The letter r and then newline then the text: woow
- E.
The letter r then the text like this: nwoow
- 9.What gets printed?print "\x48\x49!"
- A.
\x48\x49!
- B.
4849
- C.
48 49!
- D.
4849!
- E.
HI!
- 10.What gets printed?class parent:def __init__(self, param):self.v1 = paramclass child(parent):def __init__(self, param):self.v2 = paramobj = child(11)print "%d %d" % (obj.v1, obj.v2)
- A.
None None
- B.
11 None
- C.
Error is generated by program
- D.
11 11
- E.
None 11
- 11.What sequence of numbers is printed?values = [2, 3, 2, 4]def my_transformation(num):return num ** 2for i in map(my_transformation, values):print i
- A.
2 3 2 4
- B.
4 9 4 16
- C.
1 1 1 2
- D.
1 1.5 1 2
- E.
4 6 4 8
- 12.What does the code below do?sys.path.append('/root/mods')
- A.
Changes the location that the python executable is run from
- B.
Changes the location where sub-processes are searched for after they are launched
- C.
Removes all directories for mods
- D.
Adds a new directory to seach for python modules that are imported
- E.
Changes the current working directory
- 13.Assuming the filename for the code below is /usr/lib/python/person.pyand the program is run as: python /usr/lib/python/person.py What gets printed?class Person:def __init__(self):passdef getAge(self):print __name__p = Person()p.getAge()
- A.
__main__
- B.
Usr.lib.python.person
- C.
GetAge
- D.
An exception is thrown
- E.
Person
- 14.Which of the following data structures can be used with the "in" operator to check if an item is in the data structure?
- A.
List
- B.
Set
- C.
Dictionary
- D.
All of the above
- E.
None of the above
- 15.What gets printed?class A:def __init__(self, a, b, c):self.x = a + b + ca = A(1,2,3)b = getattr(a, 'x')setattr(a, 'x', b+1)print a.x
- A.
1
- B.
2
- C.
6
- D.
7
- E.
3
- 16.
- A.
Python's syntax is much like PHP
- B.
Python can be used for web development
- C.
Python can run on any type of platform
- D.
Python can be used to generate dynamic web pages
- 17.If you have a variable "example", how do you check to see what type of variable you are working with?
- A.
GetType(example)
- B.
Type(example)
- C.
type(example)
- D.
Example.type
- 18.If you had a statement like, "f = open("test.txt","w")", what would happen to the file as soon as that statement is executed?
- A.
Nothing, unless the code following it writes to the file
- B.
The file's contents will be erased
- C.
Nothing
- D.
Python will save the file's contents and append whatever the code following says to write.
- 19.Given a function that does not return any value, What value is thrown by itby default when executed in shell.
- A.
Int
- B.
Bool
- C.
Void
- D.
None
- 20.
- A.
Round(45.8)
- B.
Round(6352.894,2)
- C.
Round()
- D.
Round(7463.123,2,1)
- 21.Which of the following results in a SyntaxError(Multiple answers possible) ?
- A.
'"Once upon a time…", she said.'
- B.
'3\'
- C.
"’That's okay"'
- D.
"He said, "Yes!""
- 22.Is the following code valid? try: # Do somethingexcept: # Do somethingfinally: # Do something
- A.
no, there is no such thing as finally
- B.
no, finally cannot be used with except
- C.
no, finally must come before except
- D.
yes
- 23.How many except statements can a try-except block have?
- A.
More than zero
- B.
More than one
- C.
One
- D.
zero
- 24.Can one block of except statements handle multiple exception?
- A.
Yes, like except TypeError, SyntaxError [,…]
- B.
yes, like except [TypeError, SyntaxError
- C.
no
- D.
None of the mentioned
- 25.Which of the following will print True?a = foo(2) b = foo(3) print(a < b)
- A.
Class foo: def __init__(self, x): self.x = x def __lt__(self, other): if self.x < other.x: return False else: return True
- B.
Class foo: def __init__(self, x): self.x = x def __less__(self, other): if self.x > other.x: return False else: return True
- C.
Class foo: def __init__(self, x): self.x = x def __lt__(self, other): if self.x < other.x: return True else: return False
- D.
Class foo: def __init__(self, x): self.x = x def __less__(self, other): if self.x < other.x: return False else: return True
- 26.Let A and B be objects of class Foo. Which functions are called when print(A + B) is executed?
- A.
__add__(), __str__()
- B.
__str__(), __add__()
- C.
__sum__(), __str__()
- D.
__str__(), __sum__()
- 27.
- A.
(math.e ** p) – 1
- B.
math.e ** (p – 1)
- C.
Error
- D.
None of the mentioned
- 28.
- A.
9
- B.
9.0
- C.
None
- D.
None of the mentioned
- 29.
- A.
No difference
- B.
In r+ the pointer is initially placed at the beginning of the file and the pointer is at the end for w+
- C.
In w+ the pointer is initially placed at the beginning of the file and the pointer is at the end for r+
- D.
Depends on the operating system
- 30.
- A.
Fp.seek()
- B.
Fp.tell()
- C.
Fp.loc
- D.
Fp.pos
- 31.
- A.
File position is set to the start of file
- B.
File position is set to the end of file
- C.
File position remains unchanged
- D.
Error
- 32.
- A.
os.getcwd()
- B.
Os.cwd()
- C.
os.getpwd()
- D.
Os.pwd()
- 33.Python supports the creation of anonymous functions at runtime, using a construct called __________?
- A.
Lambda
- B.
Pi
- C.
Anonymous
- D.
None of the mentioned
- 34.What is the output of this program? y = 6 z = lambda x: x * yprint z(8)
- A.
48
- B.
14
- C.
64
- D.
None of mentioned
- 35.What is the output of below program? def writer(): title = 'Sir' name = (lambda x:title + ' ' + x) return name who = writer()who('Arthur')
- A.
Arthur Sir
- B.
Sir Arthur
- C.
Arthur
- D.
None of mentioned
- 36.What is the output of the below program? def C2F(c): return c * 9/5 + 32print C2F(100)print C2F(0)
- A.
212 32
- B.
314 24
- C.
567 98
- D.
None of the mentioned
- 37.What is the output of the below program? def power(x, y=2): r = 1 for i in range(y): r = r * x return rprint power(3)print power(3, 3)
- A.
212 32
- B.
9 27
- C.
Error
- D.
567 98
- E.
None of the mentioned
- 38.3. What is the order of precedence in python?i) Parenthesesii) Exponentialiii) Divisioniv) Multiplicationv) Additionvi) Subtraction
- A.
i,ii,iii,iv,v,vi
- B.
Ii,i,iii,iv,v,vi
- C.
Ii,i,iv,iii,v,vi
- D.
I,ii,iii,iv,vi,v
- E.
I,ii,iv,iii,v,vi
- 39.Operators with the same precedence are evaluated in which manner?
- A.
Left to Right
- B.
Right to Left
- 40.Which of the following is incorrect?
- A.
x = 0b101
- B.
X = 0x4f5
- C.
x = 19023
- D.
X = 03964
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