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1.
In Python, dictionaries are implemented as ____________________________.
2.
What is the output of the following Python code:
l = []
l.append('foo')
l.append('bar')
l.append('baz')
s = ''.join(l)
print(s)
l.append('foo')
l.append('bar')
l.append('baz')
s = ''.join(l)
print(s)
3.
How can you handle exceptions in Python?
4.
What is the output of the following Python code:
d1 = {
1: 1,
2: 2
}
d2 = {
2: 'ha!',
3: 3
}
d1.update(d2)
print(d1)
1: 1,
2: 2
}
d2 = {
2: 'ha!',
3: 3
}
d1.update(d2)
print(d1)
5.
What is the output of the following Python code:
a = [1, 2, 3, 4, 5, 6, 7, 8, 9]
print(a[::2])
print(a[::2])
6.
What is the output of the following Python code:
a = [10, 20, 30, 40]
print(a[3: 0: -1])
print(a[3: 0: -1])
7.
What is the output of the following Python code:
def f(value, values):
v = 1
values[1] = -1
t = 3
v = [1, 2, 3]
f(t, v)
print(t, v[1])
v = 1
values[1] = -1
t = 3
v = [1, 2, 3]
f(t, v)
print(t, v[1])
8.
In Python, a list is ____________________________.
9.
What is the output of the following Python code:
l1 = [1, 2, 3]
l1.pop()
l1.push(1)
l1.pop()
l1.push(1)
10.
In Python, which of the following statements is true:
- Tuples have structure, lists have an order.
- Tuples are homogeneous, lists are heterogeneous.
- Tuples are immutable, lists are mutable.