Python Interviews

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COMMON TERMINOLOGIES IN PYTHON - PART 1 Have you ever gotten into a discussion with a programmer before? Did you find some of the Terminologies mentioned strange or you didn't fully understand them? In this series, we would be looking at the common Terminologies in python. It is important to know these Terminologies to be able to professionally/properly explain your codes to people and/or to be able to understand what people say in an instant when these codes are mentioned. Below are a few: IDLE (Integrated Development and Learning Environment) - this is an environment that allows you to easily write Python code. IDLE can be used to execute a single statements and create, modify, and execute Python scripts. Python Shell - This is the interactive environment that allows you to type in python code and execute them immediately System Python - This is the version of python that comes with your operating system Prompt - usually represented by the symbol ">>>" and it simply means that python is waiting for you to give it some instructions REPL (Read-Evaluate-Print-Loop) - this refers to the sequence of events in your interactive window in form of a loop (python reads the code inputted>the code is evaluated>output is printed) Argument - this is a value that is passed to a function when called eg print("Hello World")... "Hello World" is the argument that is being passed. Function - this is a code that takes some input, known as arguments, processes that input and produces an output called a return value. E.g print("Hello World")... print is the function Return Value - this is the value that a function returns to the calling script or function when it completes its task (in other words, Output). E.g. >>> print("Hello World") Hello World Where Hello World is your return value. Note: A return value can be any of these variable types: handle, integer, object, or string Script - This is a file where you store your python code in a text file and execute all of the code with a single command Script files - this is a file containing a group of python scripts

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Don't Confuse to learn Python. Learn This Concept to be proficient in Python. 𝗕𝗮𝘀𝗶𝗰𝘀 𝗼𝗳 𝗣𝘆𝘁𝗵𝗼𝗻: - Python Syntax - Data Types - Variables - Operators - Control Structures: if-elif-else Loops Break and Continue try-except block - Functions - Modules and Packages 𝗢𝗯𝗷𝗲𝗰𝘁-𝗢𝗿𝗶𝗲𝗻𝘁𝗲𝗱 𝗣𝗿𝗼𝗴𝗿𝗮𝗺𝗺𝗶𝗻𝗴 𝗶𝗻 𝗣𝘆𝘁𝗵𝗼𝗻: - Classes and Objects - Inheritance - Polymorphism - Encapsulation - Abstraction 𝗣𝘆𝘁𝗵𝗼𝗻 𝗟𝗶𝗯𝗿𝗮𝗿𝗶𝗲𝘀: - Pandas - Numpy 𝗣𝗮𝗻𝗱𝗮𝘀: - What is Pandas? - Installing Pandas - Importing Pandas - Pandas Data Structures (Series, DataFrame, Index) 𝗪𝗼𝗿𝗸𝗶𝗻𝗴 𝘄𝗶𝘁𝗵 𝗗𝗮𝘁𝗮𝗙𝗿𝗮𝗺𝗲𝘀: - Creating DataFrames - Accessing Data in DataFrames - Filtering and Selecting Data - Adding and Removing Columns - Merging and Joining DataFrames - Grouping and Aggregating Data - Pivot Tables 𝗗𝗮𝘁𝗮 𝗖𝗹𝗲𝗮𝗻𝗶𝗻𝗴 𝗮𝗻𝗱 𝗣𝗿𝗲𝗽𝗮𝗿𝗮𝘁𝗶𝗼𝗻: - Handling Missing Values - Handling Duplicates - Data Formatting - Data Transformation - Data Normalization 𝗔𝗱𝘃𝗮𝗻𝗰𝗲𝗱 𝗧𝗼𝗽𝗶𝗰𝘀: - Handling Large Datasets with Dask - Handling Categorical Data with Pandas - Handling Text Data with Pandas - Using Pandas with Scikit-learn - Performance Optimization with Pandas 𝗗𝗮𝘁𝗮 𝗦𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲𝘀 𝗶𝗻 𝗣𝘆𝘁𝗵𝗼𝗻: - Lists - Tuples - Dictionaries - Sets 𝗙𝗶𝗹𝗲 𝗛𝗮𝗻𝗱𝗹𝗶𝗻𝗴 𝗶𝗻 𝗣𝘆𝘁𝗵𝗼𝗻: - Reading and Writing Text Files - Reading and Writing Binary Files - Working with CSV Files - Working with JSON Files 𝗡𝘂𝗺𝗽𝘆: - What is NumPy? - Installing NumPy - Importing NumPy - NumPy Arrays 𝗡𝘂𝗺𝗣𝘆 𝗔𝗿𝗿𝗮𝘆 𝗢𝗽𝗲𝗿𝗮𝘁𝗶𝗼𝗻𝘀: - Creating Arrays - Accessing Array Elements - Slicing and Indexing - Reshaping Arrays - Combining Arrays - Splitting Arrays - Arithmetic Operations - Broadcasting 𝗪𝗼𝗿𝗸𝗶𝗻𝗴 𝘄𝗶𝘁𝗵 𝗗𝗮𝘁𝗮 𝗶𝗻 𝗡𝘂𝗺𝗣𝘆: - Reading and Writing Data with NumPy - Filtering and Sorting Data - Data Manipulation with NumPy - Interpolation - Fourier Transforms - Window Functions 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻 𝘄𝗶𝘁𝗵 𝗡𝘂𝗺𝗣𝘆: - Vectorization - Memory Management - Multithreading and Multiprocessing - Parallel Computing I have curated the best interview resources to crack Python Interviews 👇👇 https://topmate.io/analyst/907371 Hope you'll like it Like this post if you need more resources like this 👍❤️ #Python

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Python interview questions 😍😍 What is Python? Python is an interpreted, object-oriented, high-level programming language with dynamic semantics, automatic memory management. What's the difference between a tuple and a list? Both tuples and lists are data structures in Python and hold a list of values. Unlike lists, tuples are immutable - they can't be changed. What is a dict and what's its most important limitation? A dict is a structure akin a hash map. It stores key-value pairs, where keys are unique and it has O(1) access time. The most important limitation for a dict is that the keys must be hashable/immutable. Meaning, we can use a tuple as a key, but not a list. What is pickling/unpickling? Pickling is converting an object to a string representation in python. Generally used for caching and transferring objects between hosts/processes. Is Python a Scripting Language? Python is capable of scripting, but it is more than that. It is considered as a general-purpose programming language.

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Python Roadmap | |-- Fundamentals | |-- Basics of Programming | | |-- Introduction to Python | | |-- Setting Up Development Environment (IDE: PyCharm, VSCode, etc.) | | | |-- Syntax and Structure | | |-- Basic Syntax | | |-- Variables and Data Types | | |-- Operators and Expressions | |-- Control Structures | |-- Conditional Statements | | |-- If-Else Statements | | |-- Elif Statements | | | |-- Loops | | |-- For Loop | | |-- While Loop | | | |-- Exception Handling | | |-- Try-Except Block | | |-- Finally Block | | |-- Raise and Custom Exceptions | |-- Functions and Modules | |-- Defining Functions | | |-- Function Syntax | | |-- Parameters and Arguments | | |-- Return Statement | | | |-- Lambda Functions | | |-- Syntax and Usage | | | |-- Modules and Packages | | |-- Importing Modules | | |-- Creating and Using Packages | |-- Object-Oriented Programming (OOP) | |-- Basics of OOP | | |-- Classes and Objects | | |-- Methods and Constructors | | | |-- Inheritance | | |-- Single and Multiple Inheritance | | |-- Method Overriding | | | |-- Polymorphism | | |-- Method Overloading (using default arguments) | | |-- Operator Overloading | | | |-- Encapsulation | | |-- Access Modifiers (Public, Private, Protected) | | |-- Getters and Setters | | | |-- Abstraction | | |-- Abstract Base Classes | | |-- Interfaces (using ABC module) | |-- Advanced Python | |-- File Handling | | |-- Reading and Writing Files | | |-- Working with CSV and JSON Files | | | |-- Iterators and Generators | | |-- Creating Iterators | | |-- Using Generators and Yield Statement | | | |-- Decorators | | |-- Function Decorators | | |-- Class Decorators | |-- Data Structures | |-- Lists | | |-- List Comprehensions | | |-- Common List Methods | | | |-- Tuples | | |-- Immutable Sequences | | | |-- Dictionaries | | |-- Dictionary Comprehensions | | |-- Common Dictionary Methods | | | |-- Sets | | |-- Set Operations | | |-- Set Comprehensions | |-- Libraries and Frameworks | |-- Data Science | | |-- NumPy | | |-- Pandas | | |-- Matplotlib | | |-- Seaborn | | |-- SciPy | | | |-- Web Development | | |-- Flask | | |-- Django | | | |-- Automation | | |-- Selenium | | |-- BeautifulSoup | | |-- Scrapy | |-- Testing in Python | |-- Unit Testing | | |-- Unittest | | |-- PyTest | | | |-- Mocking | | |-- unittest.mock | | |-- Using Mocks and Patches | |-- Deployment and DevOps | |-- Containers and Microservices | | |-- Docker (Dockerfile, Image Creation, Container Management) | | |-- Kubernetes (Pods, Services, Deployments, Managing Python Applications on Kubernetes) | |-- Best Practices and Advanced Topics | |-- Code Style | | |-- PEP 8 Guidelines | | |-- Code Linters (Pylint, Flake8) | | | |-- Performance Optimization | | |-- Profiling and Benchmarking | | |-- Using Cython and Numba | | | |-- Concurrency and Parallelism | | |-- Threading | | |-- Multiprocessing | | |-- Asyncio | |-- Building and Distributing Packages | |-- Creating Packages | | |-- setuptools | | |-- Creating environment setup | | | |-- Publishing Packages | | |-- PyPI | | |-- Versioning and Documentation Best Resource to learn Python Python Interview Questions with Answers Freecodecamp Python ML Course with FREE Certificate Python for Data Analysis Python course for beginners by Microsoft Scientific Computing with Python Python course by Google Python Free Resources Please give us credits while sharing: -> https://t.me/free4unow_backup ENJOY LEARNING 👍👍

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Data types are foundational in computing, and it's essential to understand them to work effectively in any programming environment. Let's take a dive into the top ten commonly used data types: 1. Integer (int): - Represents whole numbers. - Examples: -2, -1, 0, 1, 2, 3 2. Floating Point (float/double): - Represents numbers with decimals. - Examples: -2.5, 0.0, 3.14 3. Character (char): - Represents single characters. - Examples: 'A', 'b', '1', '%' 4. String: - Represents sequences of characters, basically text. - Examples: "Hello", "ChatGPT", "1234" 5. Boolean (bool): - Represents true or false values. - Examples: True, False 6. Array: - Represents a collection of elements, often of the same type. - Examples: [1, 2, 3], ["apple", "banana", "cherry"] 7. Object: - Used in object-oriented programming, represents a combination of data and methods to manipulate the data. - Examples: A Car object might have data like color and speed and methods like drive() and park(). 8. Date & Time: - Represents date and time values. - Examples: 23-10-2023, 12:30:45 9. Byte & Binary: - Represents raw binary data. - Examples: 01010101 (Byte), 101000111011 (Binary) 10. Enum: - Represents a set of named constants. - Examples: Days of the week (Monday, Tuesday...), Colors (Red, Blue, Green)

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Pandas Functions

Matplotlib Functions

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❔ Interview question How do any() and all() work? Answer: any() - takes a sequence and returns true if any element in the sequence is true. all() - Returns true only if all elements in the sequence are true.