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Which of the following best describes the Python Global Interpreter Lock (GIL)?

What is the output of `print([i for i in range(5) if i % 2 == 0])`?

Which built-in function in Python can be used to sort a list?

What is the purpose of the 'yield' keyword in Python?

Which of the following is a valid way to declare a decorator in Python?

What is the difference between a shallow copy and a deep copy in Python?

Which method is used to add an element to the end of a list in Python?

What will be the output of the following code snippet?

```python
x = [1, 2, 3]
print(x * 2)
```

In Python, what is the difference between __init__ and __new__ methods in a class?

Which module in Python provides support for regular expressions?

What is the output of the following code?

```python
def func(a, b=2, c=3):
    return a + b + c

print(func(1, c=4))
```

Which of the following statements is true about Python's list comprehension?

What is a generator expression in Python?

What does the 'pass' statement do in Python?

Which keyword is used for exception handling in Python?

What is the output of `print(bool([]))` in Python?

Which of the following methods can be used to remove whitespace from the beginning and end of a string in Python?

What is the purpose of the __init__.py file in a Python package?

How can you merge two dictionaries in Python 3.9 or later?

What is the output of the following code?

```python
print('a'.join(['b', 'c', 'd']))
```

Which of the following is not a built-in data type in Python?

What does the 'is' operator compare in Python?

What is the correct way to define a metaclass in Python 3?

Which of the following is used to create an anonymous function in Python?

What does the built-in function enumerate() do?

How do you create a virtual environment in Python 3.6 and later?

Which of the following best describes duck typing in Python?

What is the result of the expression 3 ** 2 ** 2 in Python?

Which of the following is used to catch exceptions in Python?

What is the purpose of the __str__ method in a Python class?

Which built-in function returns an iterator over the given sequence in reverse order?

What is the purpose of the __repr__ method in Python?

How can you combine two lists into a list of tuples in Python?

What is the output of the following code?

```python
print('Hello, World!'.find('o'))
```

Which of the following statements about Python's lambda functions is true?

What is the result of the following expression: `all([True, False, True])`?

Which method would you use to remove an item by value from a list in Python?

How do you check if a key exists in a dictionary?

What is the output of the following code?

```python
print(type((1,)))
```

Which function is used to get the absolute value of a number in Python?

What is the correct way to open a file for reading in Python?

Which of the following is a mutable data type in Python?

What is the difference between '==' and 'is' in Python?

Which statement is used to create an empty set in Python?

What is the result of the following code snippet?

```python
print(2 * [1,2])
```

Which of the following is used to perform floor division in Python?

What is the output of `len('Hello, World!')`?

Which of the following statements about Python's memory management is true?

What is the output of the following code?

```python
print(5 / 2)
```

How do you convert a string '123' to an integer in Python?

What will be the output of this code?

```python
def foo(a, b=[]) :
    b.append(a)
    return b

print(foo(1))
print(foo(2))
```

Which of the following is used for creating iterators in Python?

What does the zip() function return in Python 3?

What is the use of the built-in function map() in Python?

What is the output of the following code?

```python
print(list(filter(lambda x: x%2, range(10))))
```

Which of the following is not a valid way to comment in Python?

What is the effect of the statement `from __future__ import annotations` in Python?

Which of the following best describes the concept of 'monads' in Python?