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Python Programming

Comprehensive Python programming questions covering fundamentals, data structures, and advanced concepts

300 questionsâ€¢30 pagesâ€¢~450 min

Use this quiz track to strengthen recall, speed, and exam-style decision making. Attempt one page first, review explanations, and then re-attempt incorrect questions without notes.

A good scoring strategy is to mark uncertain questions, finish known ones quickly, and return with elimination logic. This improves accuracy while keeping momentum under time constraints.

Progress: 0 / 3000%

Page 17 of 30 • Questions 161-170 of 300

Q161medium

Which module implements de/serialization for YAML (third-party)?

A)PyYAML

B)json

C)yaml in stdlib

D)pickle

Q162easy

What's printed?

print( (lambda:None)() is None )

A)True

B)False

C)Error

D)None

Q163easy

Which method removes item by value from list?

A)remove()

B)pop()

C)discard()

D)del

Q164easy

What's the output?

print({i: i for i in [1,1,2]})

A){1:1,2:2}

B){1:1}

C){1:1,1:1,2:2}

D)Error

Q165medium

Which builtin returns an iterator that aggregates elements from multiple iterables consecutively?

A)itertools.chain

B)zip

C)map

D)filter

Q166medium

What's printed?

def f(x):
    x[0] = x[0] + 1

lst = [0]
f(lst)
print(lst)

A)[1]

B)[0]

C)Error

D)None

Q167medium

Which typing construct represents optional type T (i.e., T or None)?

A)Optional[T]

B)Union[T, None]

C)T | None (Python 3.10+)

D)All of the above

Q168hard

What's the output?

print(type((x for x in []).__next__))

A)<class 'method-wrapper'>

B)<class 'function'>

C)<class 'method'>

D)Error

Q169medium

Which of these will read an entire file into memory as bytes?

A)open('f','rb').read()

B)open('f','r').read()

C)pathlib.Path('f').read_bytes()

D)A and C

Q170medium

What's printed?

a = {1: [1]}
b = a.copy()
a[1].append(2)
print(b[1])

A)[1,2]

B)[1]

C)Error

D)None

......

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