What is Python?
Python is a high-level, interpreted, and general-purpose programming language. It is easy to learn and understand, and it emphasizes code readability.
What are the benefits of using Python?
Some of the benefits of using Python include its simplicity, ease of learning, readability, and versatility. Python has a large standard library and supports multiple programming paradigms.
What are the data types in Python?
Python supports several data types, including integers, floats, complex numbers, strings, lists, tuples, sets, and dictionaries.
What is PEP 8?
PEP 8 is a set of guidelines for writing Python code. It covers topics such as code layout, naming conventions, and code style.
What is the difference between a list and a tuple in Python?
Lists and tuples are both types of sequences in Python. The main difference between them is that lists are mutable (can be changed), while tuples are immutable (cannot be changed).
What is a dictionary in Python?
A dictionary is a collection of key-value pairs in Python. It is similar to a hash table in other languages.
What is a module in Python?
A module is a file containing Python definitions and statements. It can be used to organize code and reuse functionality across multiple programs.
What is a package in Python?
A package is a collection of modules that are grouped together in a directory hierarchy. It can be used to organize and distribute larger Python projects.
What is the difference between "is" and "==" in Python?
The "is" operator checks whether two variables refer to the same object in memory, while the "==" operator checks whether two variables have the same value.
What is a decorator in Python?
A decorator is a function that takes another function as input and returns a new function that adds some functionality to the original function.
What is lambda in Python?
Lambda is a shorthand notation for creating anonymous functions in Python. It allows you to create small, one-line functions without defining a full function block.
What is a generator in Python?
A generator is a type of iterator that allows you to iterate over a sequence of values without storing the entire sequence in memory. Generators are created using the "yield" keyword.
What is a closure in Python?
A closure is a function that has access to the variables in its enclosing scope, even after that scope has finished executing. Closures are created when a function returns another function.
What is the difference between a shallow copy and a deep copy in Python?
A shallow copy creates a new object that references the original object, while a deep copy creates a new object with its own copy of the original object's data.
How do you handle errors in Python?
Errors in Python can be handled using the try/except block. This allows you to catch exceptions and handle them gracefully, without crashing your program.
What is a traceback in Python?
A traceback is a list of function calls that led to an error in Python. It can be used to debug code and find the source of an error.
What is a class in Python?
A class is a blueprint for creating objects in Python. It defines a set of attributes and methods that the objects will have.
What is an instance in Python?
An instance is an individual object created from a class. Each instance has its own set of attributes and methods.
What is inheritance in Python?
Inheritance is a way of creating a new class by extending an existing class. The new class (called the subclass) inherits all the attributes and methods of the existing class (called Inheritance) in Python allows you to create a new class that is a modified version of an existing class. The new class (called the subclass) inherits all the attributes and methods of the existing class (called the superclass), and can also add new attributes and methods or modify the existing ones. Inheritance allows you to reuse code and organize your classes in a hierarchical structure. It is a fundamental concept in object-oriented programming and is commonly used in Python programs.
What is polymorphism in Python?
Polymorphism is the ability of objects to take on multiple forms or behaviors. In Python, this can be achieved through method overriding or method overloading.
What is encapsulation in Python?
Encapsulation is the practice of hiding the internal details of an object from the outside world, and only exposing a public interface. This can be achieved in Python using private and protected attributes and methods.
What is a constructor in Python?
A constructor is a special method that is called when an object is created from a class. It is used to initialize the object's attributes.
What is the difference between instance and class variables in Python?
Instance variables are specific to each instance of a class, while class variables are shared by all instances of the class.
What is a static method in Python?
A static method is a method that is bound to the class, rather than an instance of the class. It can be called on the class itself, rather than on an instance.
What is a class method in Python?
A class method is a method that is bound to the class, but takes the class itself as the first argument. It can be used to manipulate class-level data.
What is a namespace in Python?
A namespace is a collection of names that are used to identify objects in Python. Namespaces can be nested, and different namespaces can have the same name.
What is the difference between a module and a script in Python?
A module is a file containing Python definitions and statements that can be imported and reused in other programs. A script is a standalone program that can be executed directly from the command line.
What is the difference between a function and a method in Python?
A function is a standalone block of code that can be called from anywhere in a program. A method is a function that is defined inside a class and is called on an instance of that class.
What is the difference between a local and global variable in Python?
A local variable is defined within a function and can only be accessed within that function. A global variable is defined outside of any function and can be accessed from anywhere in the program.
What is the difference between a module and a package in Python?
A module is a single file containing Python definitions and statements. A package is a directory containing one or more modules, as well as an init.py file that tells Python it is a package.
What is the difference between a list and a set in Python?
A list is an ordered collection of values that can contain duplicates. A set is an unordered collection of unique values.
What is a comprehension in Python?
A comprehension is a shorthand notation for creating a new list, set, or dictionary from an existing iterable.
What is the difference between a generator expression and a list comprehension in Python?
A generator expression creates a generator object, which can be iterated over one value at a time. A list comprehension creates a new list object.
What is the difference between the "append" and "extend" methods of a list in Python?
The "append" method adds a single element to the end of a list. The "extend" method adds multiple elements (from an iterable) to the end of a list.
What is the difference between the "sort" and "sorted" functions in Python?
The "sort" method sorts a list in place, while the "sorted" function returns a new sorted list without modifying the original list.
What is the difference between a deep and shallow copy in Python?
A shallow copy creates a new object that references the original object, while a deep copy creates a new object with its own copy of the original object's data. A deep copy creates a completely independent copy of the original object, while a shallow copy simply references the original object's data.
What is the difference between a for loop and a while loop in Python?
A for loop is used for iterating over a sequence of values, while a while loop is used for iterating until a specific condition is met.
What is a try/except block in Python?
A try/except block is used to catch and handle exceptions in Python. The "try" block contains the code that might raise an exception, and the "except" block contains the code to handle the exception if it occurs.
What is the difference between a function and a generator in Python?
A function returns a value and then exits, while a generator returns a value, but suspends its execution until the next value is requested.
What is the difference between a break statement and a continue statement in Python?
A break statement is used to exit a loop early, while a continue statement is used to skip over one iteration of a loop and move on to the next.
What is the difference between a map and a filter function in Python?
A map function applies a function to each element of an iterable and returns a new iterable with the results. A filter function applies a function to each element of an iterable and returns a new iterable with only the elements that meet a certain condition.
What is the difference between a list and a tuple in Python?
A list is a mutable sequence of values, while a tuple is an immutable sequence of values.
What is the difference between a local and global variable in Python?
A local variable is defined within a function and can only be accessed within that function. A global variable is defined outside of any function and can be accessed from anywhere in the program.
What is the difference between a shallow and deep copy in Python?
A shallow copy creates a new object that references the original object's data, while a deep copy creates a new object with its own copy of the original object's data.
What is the difference between a module and a package in Python?
A module is a single file containing Python definitions and statements. A package is a directory containing one or more modules, as well as an init.py file that tells Python it is a package.
What is the difference between "is" and "==" in Python?
The "is" operator checks whether two variables refer to the same object in memory, while the "==" operator checks whether two variables have the same value.
What is the difference between a stack and a queue in Python?
A stack is a Last-In-First-Out (LIFO) data structure, while a queue is a First-In-First-Out (FIFO) data structure.
What is the difference between a binary search and a linear search in Python?
A binary search is an algorithm that searches for a specific value in a sorted list by repeatedly dividing the list in half. A linear search is an algorithm that searches for a specific value by iterating over each element in the list.
What is the difference between a function and a method in Python?
A function is a standalone block of code that can be called from anywhere in a program. A method is a function that is defined inside a class and is called on an instance of that class.
What is the difference between a variable and a constant in Python?
A variable is a value that can be changed throughout the program, while a constant is a value that remains the same throughout the program. In Python, constants are typically defined using all uppercase letters, to indicate that they should not be changed.
