Python MCQ and Answers – Part 1

This collection of Python Multiple Choice Questions and Answers (MCQs): Quizzes & Practice Tests with Answer.

1. Python is a(n) _______ language?

A interpreted

B machine

C compiled

D binary

The Python interpreter first reads human code and optimizes it before interpreting it into machine code.

2. Which of the following functions converts a “string” to “float” in Python?

A str(x)

B float(x)

C long(x [,base])

D int(x [,base])

The method float() takes a single parameter, for example: print(float(10)) #10.0

3. In python 3, what does the // operator do?

A Integer division

B Return the remainder

C Division of float by zero

D Same as a ** b

In python 3, 5/2 will return 2.5 and 5 // 2 will return 2.

4. In Python, which of the following functions checks in a string that all characters are numbers?

A isdigit()

B isalnum()

C capitalize()

D shuffle(lst)

The method isdigit() checks if the string is composed of numbers only

str = "123";  # There are only numbers in this string
print str.isdigit()   #True

str = "Welcome to StackHowTo!!!";
print str.isdigit()   #False

5. What is the data type for a character in python?

A chr

B char

C character

D Python does not have any data type for characters, they are treated as strings.

Python has no type for characters. Python only handles strings, a character is simply a String of length 1.

6. What is the function that compares the elements of the two lists?

A cmp(list1, list2)

B eq(list1, list2)

C len(list1, list2)

D max(list1, list2)

The function cmp() used to compare the elements of two lists. This function returns 1, if the first list is “larger” than the second list, -1 if the first list is smaller than the second list, otherwise it returns 0 if the two lists are equal.

# initialization of lists
list1 = [ 1, 2, 4, 3] 
list2 = [ 1, 2, 5, 8] 
list3 = [ 1, 2, 4, 3] 
 
# displays 1 because list2 is larger than list1
print "Comparison of list2 with list1:"
print cmp(list2, list1)    #1
  
# displays 0 because list1 and list3 are same
print "Comparison of list3 with list1:",
print cmp(list3, list1)    #0

7. Which of the following functions returns the smallest character in the string str?

A lower()

B lstrip()

C upper(str)

D min(str)

min() is a built-in function in Python that returns the smallest character in a string.

string = "stackhowto"
print(min(string))   #a

8. Which of the following function is used to open a file for reading in Python?

A fopen(file_name, mode)

B open(file_name, mode)

C openfile(file_name, mode)

D open_file(file_name, mode)

The open() function returns a file object, which has a read() method to read the file contents:

f = open("file.txt", "r")
print(f.read())

9. In python, what keyword is used to start a function?

A function

B fun

C def

D import

Functions in python are defined using “def” keyword, followed by the name of the function. For example: def my_function (): print ("Welcom To StackHowTo!")

10. Which of the following operators in python evaluates to “true” if it does not find a variable in the specified sequence otherwise “false”?

A **

B is

C not in

D //

“X not in mySeq” will return True if X is not an element of mySeq and False otherwise. Example:

>>> 3 not in [2, 3, 4]
False
>>> 3 not in [4, 5, 6]
True

1. Python is a(n) _______ language?

2. Which of the following functions converts a “string” to “float” in Python?

3. In python 3, what does the // operator do?

4. In Python, which of the following functions checks in a string that all characters are numbers?

5. What is the data type for a character in python?

6. What is the function that compares the elements of the two lists?

7. Which of the following functions returns the smallest character in the string str?

8. Which of the following function is used to open a file for reading in Python?

9. In python, what keyword is used to start a function?

10. Which of the following operators in python evaluates to “true” if it does not find a variable in the specified sequence otherwise “false”?

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