10 Questions
What is the output of the following code: a = [1, 2, 3, 4, 5]; b = a[:]; print(b)
It will print: [1, 2, 3, 4, 5]
What is the purpose of the __init__ method in a Python class?
To initialize an object's attributes
What is the difference between break and continue statements in a Python loop?
break exits the loop, continue skips to the next iteration
What is the purpose of the lambda function in Python?
To create an anonymous function
What is the difference between is and == operators in Python?
is checks for identity, == checks for equality
What is the primary difference between the copy() and deepcopy() functions in Python?
The copy() function creates a shallow copy, while the deepcopy() function creates a deep copy.
What is the purpose of the super() function in a Python class?
To call the constructor of the parent class.
What is the difference between the list and tuple data types in Python?
Lists are mutable, while tuples are immutable.
What is the purpose of the try-except block in Python?
To handle runtime errors and exceptions.
What is the purpose of the enumerate() function in Python?
To iterate over a list and return its index and value.
Study Notes
Python Code Output
- The output of the code
a = [1, 2, 3, 4, 5]; b = a[:]; print(b)is[1, 2, 3, 4, 5], which is a copy of the original lista.
Python Class __init__ Method
- The
__init__method in a Python class is a special method that is automatically called when an object of the class is created. - It is used to initialize the attributes of the class.
- It is a constructor method that sets the initial state of the object.
Python Loop Control Statements
- The
breakstatement in a Python loop is used to exit the loop entirely. - The
continuestatement in a Python loop is used to skip the current iteration and move to the next one.
Python Lambda Function
- The
lambdafunction in Python is a small anonymous function that can take any number of arguments, but can only have one expression. - It is used to create small, one-time use functions.
- It is often used in combination with other functions such as
filter(),map(), andreduce().
Python Identity and Equality Operators
- The
isoperator in Python checks if both variables point to the same object in memory. - The
==operator checks if the values of both variables are equal. - The
isoperator is used for identity comparison, while the==operator is used for equality comparison.
Test your Python skills with these intermediate-level interview questions, covering topics like list slicing, class methods, and control structures.
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