Python Questions and Answers – Argument Parsing 2

This set of Tricky Python Questions & Answers focuses on “Argument Parsing”.

1. What will be the output of the following Python code?

def foo(k):
    k = [1]
q = [0]
foo(q)
print(q)

a) [0]
b) [1]
c) [1, 0]
d) [0, 1]
View Answer

2. How are variable length arguments specified in the function heading?
a) one star followed by a valid identifier
b) one underscore followed by a valid identifier
c) two stars followed by a valid identifier
d) two underscores followed by a valid identifier
View Answer

3. Which module in the python standard library parses options received from the command line?
a) getopt
b) os
c) getarg
d) main
View Answer

4. What is the type of sys.argv?
a) set
b) list
c) tuple
d) string
View Answer

5. What is the value stored in sys.argv[0]?
a) null
b) you cannot access it
c) the program’s name
d) the first argument
View Answer

6. How are default arguments specified in the function heading?
a) identifier followed by an equal to sign and the default value
b) identifier followed by the default value within backticks (“)
c) identifier followed by the default value within square brackets ([])
d) identifier
View Answer

7. How are required arguments specified in the function heading?
a) identifier followed by an equal to sign and the default value
b) identifier followed by the default value within backticks (“)
c) identifier followed by the default value within square brackets ([])
d) identifier
View Answer

8. What will be the output of the following Python code?

def foo(x):
    x[0] = ['def']
    x[1] = ['abc']
    return id(x)
q = ['abc', 'def']
print(id(q) == foo(q))

a) True
b) False
c) None
d) Error
View Answer

9. Where are the arguments received from the command line stored?
a) sys.argv
b) os.argv
c) argv
d) none of the mentioned
View Answer

10. What will be the output of the following Python code?

def foo(i, x=[]):
    x.append(x.append(i))
    return x
for i in range(3):
    y = foo(i)
print(y)

a) [[[0]], [[[0]], [1]], [[[0]], [[[0]], [1]], [2]]]
b) [[0], [[0], 1], [[0], [[0], 1], 2]]
c) [0, None, 1, None, 2, None]
d) [[[0]], [[[0]], [1]], [[[0]], [[[0]], [1]], [2]]]
View Answer

Sanfoundry Global Education & Learning Series – Python.

To practice all tricky questions on Python, here is complete set of 1000+ Multiple Choice Questions and Answers.