{"id":265127,"date":"2024-07-23T10:56:17","date_gmt":"2024-07-23T10:56:17","guid":{"rendered":"https:\/\/imarticus.org\/blog\/?p=265127"},"modified":"2024-07-26T09:08:12","modified_gmt":"2024-07-26T09:08:12","slug":"python-interview-questions","status":"publish","type":"post","link":"https:\/\/imarticus.org\/blog\/python-interview-questions\/","title":{"rendered":"Top 50 Python Interview Questions and Answers"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Given that you\u2019re here, you\u2019re either someone who is looking to clear interviews or just someone curious enough to check out <\/span><span style=\"font-weight: 400;\">Python interview questions and answers<\/span><span style=\"font-weight: 400;\">. Whether it&#8217;s the former or the latter, I\u2019m sure you\u2019re itching to learn what kind of questions are asked during a Python interview!\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">And hence, we\u2019ve compiled these <\/span><span style=\"font-weight: 400;\">Python interview questions<\/span><span style=\"font-weight: 400;\">. Read on to get an idea of the questions that you might face when attending an interview.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Commonly Asked <\/span><span style=\"font-weight: 400;\">Python Interview Questions<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Here is a list of <\/span><span style=\"font-weight: 400;\">Python interview questions for freshers<\/span><span style=\"font-weight: 400;\">.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">1. What is Python?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Python is an open-source, feature-rich programming language. It is a high-level language used to create automation, software and web development, data science, and more.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">2. Why Python?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\"><a href=\"https:\/\/imarticus.org\/blog\/importance-of-python-programming-in-todays-tech-world\/\"><strong>Python<\/strong><\/a> is a solid choice because it is a high-level programming language. It is used to create websites, online applications, and GUI apps. This allows us to focus on the necessary functionalities.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">3. How can you make an empty Python class?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">We can use the pass command to create an empty class after defining the object class.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">4. What are the advantages of the Python language in this particular situation as a tool?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Some of the advantages of using Python are:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Portable and interactive<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Supports third-party modules<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Extensive support libraries<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.techtarget.com\/searchapparchitecture\/definition\/object-oriented-programming-OOP\"><strong>Object-oriented language<\/strong><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Open source with a thriving development community<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Compatible with most operating systems<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-weight: 400;\">5. What does Python&#8217;s &#8220;#&#8221; symbol mean?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">We can use the # symbol to add comments on everything that comes after on the line.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">6. Does Python require indentation?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Indentation is an integral part of Python as it signifies a block of code. An indented block contains code within loops, functions, and classes. You can create an indentation using only four space characters. However, we must be careful to indent our code properly, or it will show errors and fail to execute.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">7. Why is self used in Python?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Self is an object or a class instance in Python. Self comes in the first parameter. We can use self to distinguish between attributes of a class with local variables and methods.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">8. What does a Python lambda function mean?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The lambda function in Python is an anonymous, single-expression function used as an inline function. We can use the lambda function by using the keyword \u2018lambda\u2019, and follow it up with input parameters, a colon, and an expression.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">9. What are scopes and namespaces in Python?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">A namespace is a container. It contains identifiers like functions and variables. In comparison, scopes control the visibility of these identifiers in our code.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">10. What is PEP 8?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Guido van Rossum, Barry Warsaw, and Nick Coghlan wrote the Python Enhancement Proposal (PEP 8), which specifies coding style recommendations for developing readable and consistent Python code.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">11. What is the difference between a list and a tuple?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Although iterations take time, lists are mutable data types that require more memory and work well for operations like insertion and deletion. Tuples, on the other hand, are efficient for element access with faster iterations, use less memory, and are immutable.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">12. What is monkey patching?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The term &#8220;monkey patch&#8221; in Python exclusively describes run-time, dynamic changes made to a class or module.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">13. Is this statement true \u201cPython is a case-sensitive language\u201d?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Yes, it is true that Python is case-sensitive. It is important to remember that \u201cfunction\u201d and \u201cFunction\u201d have different existences, just like Pascal and SQL handle them separately.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">14. What is a dictionary in Python?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Python comes equipped with a built-in datatype called dictionary. The dictionary helps create a one-on-one mapping between values and keys. Dictionary values and keys are kept in pairs. Dictionary values are indexed using keys.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">15. How can you write comments in Python?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">You can use the # symbol to create single-line comments. You can use triple quotes to contain multi-line comments like this: \u201c \u201c \u201ctext\u201d \u201c \u201c.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">16. What is polymorphism in Python?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Polymorphism means having multiple forms. If a parent class has a method called ABC, for example, the child class can also have a method named ABC, but with different variables and parameters. Python supports polymorphism.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">17. How do you do data abstraction in Python?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">You can do data abstraction in Python using interfaces and abstract classes.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">18. What does the method <\/span><b><i>object()<\/i><\/b><span style=\"font-weight: 400;\"> do?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The method <\/span><b><i>object()<\/i><\/b><span style=\"font-weight: 400;\"> returns an object with no features that serve as the foundation for all classes. You don\u2019t need any parameters for this method.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">19. What is pickling and unpickling?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Pickling is when you transform a Python object hierarchy into a byte stream to store in a database. Pickling is also called serialisation. Unpickling is the exact opposite of pickling. During unpickling, you can convert the byte stream into an object hierarchy.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">20. How does Python pass parameters by reference or by value?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">In Python, everything is an object, and references to those objects are stored in all variables. We cannot alter the value of the references since the functions set them. On the other hand, we can alter the objects if they are mutable.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">21. How do you delete files in Python?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">We can either use <\/span><b><i>os.unlink()<\/i><\/b><span style=\"font-weight: 400;\"> or <\/span><b><i>os.remove()<\/i><\/b><span style=\"font-weight: 400;\"> to delete a file using Python.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">22. What is pass in Python?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">You can use the pass keyword in Python to represent a null operation. The general use of pass is to fill in blank code blocks that need to be completed. In some cases, they can execute without even a complete runtime. We can encounter issues during code execution without the pass statement.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">23. Why is a split used?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Using the <\/span><b><i>split()<\/i><\/b><span style=\"font-weight: 400;\"> function, you can split a string.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">24. How would you find the most common elements in a list?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The `<\/span><b><i>most_common()}<\/i><\/b><span style=\"font-weight: 400;\"> function can be used to identify the elements that are most frequently seen after counting the instances of each element in the list using the `collections.Counter` class.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">25. What is docstring in Python?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">We can use docstring in Python to associate documentation with methods, classes, and functions. We can describe these components using docstring.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">26. What is Pythonpath?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Pythonpath is an environment variable that can be used when importing a module. Whenever a module is imported, Python also runs PythonPath to check for other imported modules in different directories. This helps determine which module to load.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">27. Do we need to declare variables in Python with their corresponding data types?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">No, we don\u2019t need to declare variables because Python is a dynamically typed language. For example, we can identify a variable\u2019s data by its assigned value.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">28. What is unittest in Python?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Python\u2019s unittest is a unit testing framework. With unittest we can share shutdown and setup codes, aggregate tests into collections, and make tests independent from the reporting framework.\u00a0<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">29. What is a Python Decorator?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">We can use a Python decorator to contain a Python method and add additional code to change its behaviour. We can use the \u2018@\u2019 symbol to invoke a Python decorator function.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">30. What is the difference between Python arrays and lists?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Python arrays must contain elements of the same data type and are more memory-efficient, while Python lists can contain elements of different data types but consume more memory.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">31. What are the different types of operators in Python?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The commonly used operators in Python are Arithmetic, Logical, Bitwise, Assignment, Comparison\/Relational, Identity, and Membership operators.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">32. What are Python libraries? Name a few of them.<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Python libraries are collections of Python packages. Scikit-learn, Numpy, Matplotlib, and Pandas are a few examples of Python libraries.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">33. What is an interpreted language?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">We can use an interpreted language when we need to execute statements line by line. Some popular interpreted languages are Javascript, PHP, R, Ruby, and Python. Using interpreted languages we can run programs directly from the source, without using any compilation step in between.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">34. What are access Specifiers in Python?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">We can determine a class member\u2019s visibility using access specifiers (private, protected, public). We can use public members anywhere, private members only in the class, and protected within derived classes.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">35. Why don\u2019t lambda forms have statements?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Python lambda forms do not include the statement since it is needed to generate and return the new function object at runtime.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">36. What is slicing in Python?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">We can use slicing to access certain parts of sequences like tuples, strings, and lists.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">37. How do you make a Python script executable on UNIX?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">To execute on UNIX, we need to start our script with #!\/usr\/bin\/env python.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">38. What are the different built-in data types in Python?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">We can access many built-in data types in Python, including mapping types (dictionary), sequence types (range, tuple, list, string), numeric types (complex, float, int), and set types.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">39. Is multiple inheritance supported in Python?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Python supports multiple inheritance and its uses. Multiple instances are when a class is created from multiple individual parent classes. Multiple instances are feature-rich and beneficial to users.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">40. What is PIP?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">PIP is short for Python Installer Package. We can use PIP to install various Python modules seamlessly. Since PIP is a command-line tool, we can use it to look for packages online and install them without interacting with anyone.\u00a0<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">41. What is _init_?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">In Python, <\/span><b><i>_init_<\/i><\/b><span style=\"font-weight: 400;\"> is a method or constructor. We can use the <\/span><b><i>_init_<\/i><\/b><span style=\"font-weight: 400;\"> method to allocate memory to newly created objects.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">42. How will you capitalise the first letter of the string?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">We can use the <\/span><b><i>capitalise()<\/i><\/b><span style=\"font-weight: 400;\"> method when we need to capitalise a string\u2019s first letter. The method will return the original string if the string already has a capital letter at the beginning.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">43. What is the difference between \u2018return\u2019 and \u2018yield\u2019 keywords?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">In Python, &#8216;return&#8217; transmits a value and terminates a function, whereas &#8216;yield&#8217; provides a value while retaining the function&#8217;s state, allowing it to continue from where it stopped.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">44. What method will you use to convert a string to all lowercase?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">To convert a string to lowercase we can use the <\/span><b><i>lower()<\/i><\/b><span style=\"font-weight: 400;\"> function.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">45. What are built-in types of Python?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Some of the commonly used built-in types of Python are Boolean, floating point, built-in functions, complex numbers, and string.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">46. What does negative indexing Mean?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Negative indexing is when we start indexing from the opposite end of a sequence. For example, the last element in a list is the -1 index, -2 for the second-to-last, and so on. We can skip calculating the exact index and access elements easily using negative indexing.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">47. What are the uses of ternary operators in Python?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">We can use the ternary operator to show conditional statements in Python. This comprises a statement that needs to be verified and boolean true or false values.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">48. How to add values to a Python array?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">We can use the <\/span><b><i>insert (i,x)<\/i><\/b><span style=\"font-weight: 400;\">, <\/span><b><i>extend()<\/i><\/b><span style=\"font-weight: 400;\">, and <\/span><b><i>append()<\/i><\/b><span style=\"font-weight: 400;\"> functions to add an element to an array.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">49. Write a code to display the current time?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">From datetime import datetime<\/span><\/p>\n<p><b><i># Get the current time<\/i><\/b><\/p>\n<p><b><i>current_time = datetime.now().strftime(&#8220;%H:%M:%S&#8221;)<\/i><\/b><\/p>\n<p><b><i># Display the current time<\/i><\/b><\/p>\n<p><b><i>print(&#8220;Current Time:&#8221;, current_time)<\/i><\/b><\/p>\n<h3><span style=\"font-weight: 400;\">50. What is the difference between .py and .pyc files?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">.py files are Python source code interpreted by the Python interpreter, while .pyc files are bytecode compiled by the Python compiler, typically for built-in modules.<\/span><\/p>\n<h4><span style=\"font-weight: 400;\">Wrapping Up<\/span><\/h4>\n<p><span style=\"font-weight: 400;\">Python is a popular programming language and has countless users. Python serves a purpose for everyone, from students to professionals. If you\u2019re aiming to be the latter, you probably have a basic grasp of the <\/span><span style=\"font-weight: 400;\">Python basic interview questions<\/span><span style=\"font-weight: 400;\"> after reading through this blog.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">If you\u2019re looking to use your Python expertise in data science, why not check out Imarticus Learning\u2019s <\/span><span style=\"font-weight: 400;\">Postgraduate Programme In Data Science And Analytics<\/span><span style=\"font-weight: 400;\">. Enrol today in our <a href=\"https:\/\/imarticus.org\/postgraduate-program-in-data-science-analytics\/\"><strong>data analytics course<\/strong><\/a> today to kickstart your career!<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Frequently Asked Questions<\/span><\/h2>\n<ol>\n<li><b> What are <\/b><b>Python basic interview questions<\/b><b> like?<\/b><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">Basic <\/span><span style=\"font-weight: 400;\">Python interview questions for freshers<\/span><span style=\"font-weight: 400;\"> include questions like \u201cWhat is Python?\u201d; \u201cHow to install Python?\u201d; \u201cWhat are the key features of Python?\u201d<\/span><\/p>\n<ol start=\"2\">\n<li><b> How can you crack <\/b><b>Python interview questions<\/b><b>?<\/b><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">You can crack <\/span><span style=\"font-weight: 400;\">Python interview questions<\/span><span style=\"font-weight: 400;\"> by polishing your practical and theoretical knowledge.<\/span><\/p>\n<ol start=\"3\">\n<li><b> Can I self-study Python?<\/b><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">Yes, you can. It is absolutely possible to start learning Python on your own.<\/span><\/p>\n<ol start=\"4\">\n<li><b> What is Python best used for?<\/b><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">Python is best used for tasks like data visualisation, cleaning, analysis, and manipulation.<\/span><br \/>\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [{\n    \"@type\": \"Question\",\n    \"name\": \"What is Python?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Python is an open-source, feature-rich programming language. It is a high-level language used to create automation, software and web development, data science, and more.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"How can you make an empty Python class?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"We can use the pass command to create an empty class after defining the object class.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What are the advantages of the Python language in this particular situation as a tool?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Some of the advantages of using Python are:<\/p>\n<p>Portable and interactive\nSupports third-party modules\nExtensive support libraries\nObject-oriented language\nOpen source with a thriving development community\nCompatible with most operating systems\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"Does Python require indentation?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Indentation is an integral part of Python as it signifies a block of code. An indented block contains code within loops, functions, and classes. You can create an indentation using only four space characters. However, we must be careful to indent our code properly, or it will show errors and fail to execute.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"Why is self used in Python?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Self is an object or a class instance in Python. Self comes in the first parameter. We can use self to distinguish between attributes of a class with local variables and methods.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What does a Python lambda function mean?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"The lambda function in Python is an anonymous, single-expression function used as an inline function. We can use the lambda function by using the keyword \u2018lambda\u2019, and follow it up with input parameters, a colon, and an expression.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What are scopes and namespaces in Python?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"A namespace is a container. It contains identifiers like functions and variables. In comparison, scopes control the visibility of these identifiers in our code.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What is PEP 8?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Guido van Rossum, Barry Warsaw, and Nick Coghlan wrote the Python Enhancement Proposal (PEP 8), which specifies coding style recommendations for developing readable and consistent Python code.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What is the difference between a list and a tuple?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Although iterations take time, lists are mutable data types that require more memory and work well for operations like insertion and deletion. Tuples, on the other hand, are efficient for element access with faster iterations, use less memory, and are immutable.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What is monkey patching?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"The term \\\"monkey patch\\\" in Python exclusively describes run-time, dynamic changes made to a class or module.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"Is this statement true \u201cPython is a case-sensitive language\u201d?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Yes, it is true that Python is case-sensitive. It is important to remember that \u201cfunction\u201d and \u201cFunction\u201d have different existences, just like Pascal and SQL handle them separately.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What is a dictionary in Python?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Python comes equipped with a built-in datatype called dictionary. The dictionary helps create a one-on-one mapping between values and keys. Dictionary values and keys are kept in pairs. Dictionary values are indexed using keys.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"How can you write comments in Python?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"You can use the # symbol to create single-line comments. You can use triple quotes to contain multi-line comments like this: \u201c \u201c \u201ctext\u201d \u201c \u201c.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What is polymorphism in Python?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Polymorphism means having multiple forms. If a parent class has a method called ABC, for example, the child class can also have a method named ABC, but with different variables and parameters. Python supports polymorphism.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"How do you do data abstraction in Python?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"You can do data abstraction in Python using interfaces and abstract classes.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What does the method object() do?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"The method object() returns an object with no features that serve as the foundation for all classes. You don\u2019t need any parameters for this method.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What is pickling and unpickling?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Pickling is when you transform a Python object hierarchy into a byte stream to store in a database. Pickling is also called serialisation. Unpickling is the exact opposite of pickling. During unpickling, you can convert the byte stream into an object hierarchy.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"How does Python pass parameters by reference or by value?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"In Python, everything is an object, and references to those objects are stored in all variables. We cannot alter the value of the references since the functions set them. On the other hand, we can alter the objects if they are mutable.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"How do you delete files in Python?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"We can either use os.unlink() or os.remove() to delete a file using Python.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What is pass in Python?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"You can use the pass keyword in Python to represent a null operation. The general use of pass is to fill in blank code blocks that need to be completed. In some cases, they can execute without even a complete runtime. We can encounter issues during code execution without the pass statement.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"Why is a split used?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Using the split() function, you can split a string.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"How would you find the most common elements in a list?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"The `most_common()} function can be used to identify the elements that are most frequently seen after counting the instances of each element in the list using the `collections.Counter` class.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What is docstring in Python?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"We can use docstring in Python to associate documentation with methods, classes, and functions. We can describe these components using docstring.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What is Pythonpath?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Pythonpath is an environment variable that can be used when importing a module. Whenever a module is imported, Python also runs PythonPath to check for other imported modules in different directories. This helps determine which module to load.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"Do we need to declare variables in Python with their corresponding data types?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"No, we don\u2019t need to declare variables because Python is a dynamically typed language. For example, we can identify a variable\u2019s data by its assigned value.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What is unittest in Python?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Python\u2019s unittest is a unit testing framework. With unittest we can share shutdown and setup codes, aggregate tests into collections, and make tests independent from the reporting framework.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What is a Python Decorator?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"We can use a Python decorator to contain a Python method and add additional code to change its behaviour. We can use the \u2018@\u2019 symbol to invoke a Python decorator function.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What is the difference between Python arrays and lists?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Python arrays must contain elements of the same data type and are more memory-efficient, while Python lists can contain elements of different data types but consume more memory.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What are the different types of operators in Python?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"The commonly used operators in Python are Arithmetic, Logical, Bitwise, Assignment, Comparison\/Relational, Identity, and Membership operators.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What are Python libraries? Name a few of them.\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Python libraries are collections of Python packages. Scikit-learn, Numpy, Matplotlib, and Pandas are a few examples of Python libraries.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What is an interpreted language?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"We can use an interpreted language when we need to execute statements line by line. Some popular interpreted languages are Javascript, PHP, R, Ruby, and Python. Using interpreted languages we can run programs directly from the source, without using any compilation step in between.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What are access Specifiers in Python?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"We can determine a class member\u2019s visibility using access specifiers (private, protected, public). We can use public members anywhere, private members only in the class, and protected within derived classes.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"Why don\u2019t lambda forms have statements?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Python lambda forms do not include the statement since it is needed to generate and return the new function object at runtime.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What is slicing in Python?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"We can use slicing to access certain parts of sequences like tuples, strings, and lists.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"How do you make a Python script executable on UNIX?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"To execute on UNIX, we need to start our script with #!\/usr\/bin\/env python.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What are the different built-in data types in Python?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"We can access many built-in data types in Python, including mapping types (dictionary), sequence types (range, tuple, list, string), numeric types (complex, float, int), and set types.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"Is multiple inheritance supported in Python?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Python supports multiple inheritance and its uses. Multiple instances are when a class is created from multiple individual parent classes. Multiple instances are feature-rich and beneficial to users.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What is PIP?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"PIP is short for Python Installer Package. We can use PIP to install various Python modules seamlessly. Since PIP is a command-line tool, we can use it to look for packages online and install them without interacting with anyone.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What is _init_?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"In Python, _init_ is a method or constructor. We can use the _init_ method to allocate memory to newly created objects.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"How will you capitalise the first letter of the string?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"We can use the capitalise() method when we need to capitalise a string\u2019s first letter. The method will return the original string if the string already has a capital letter at the beginning.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What is the difference between \u2018return\u2019 and \u2018yield\u2019 keywords?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"In Python, 'return' transmits a value and terminates a function, whereas 'yield' provides a value while retaining the function's state, allowing it to continue from where it stopped.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What method will you use to convert a string to all lowercase?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"To convert a string to lowercase we can use the lower() function.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What are built-in types of Python?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Some of the commonly used built-in types of Python are Boolean, floating point, built-in functions, complex numbers, and string.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What does negative indexing Mean?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Negative indexing is when we start indexing from the opposite end of a sequence. For example, the last element in a list is the -1 index, -2 for the second-to-last, and so on. We can skip calculating the exact index and access elements easily using negative indexing.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What are the uses of ternary operators in Python?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"We can use the ternary operator to show conditional statements in Python. This comprises a statement that needs to be verified and boolean true or false values.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"How to add values to a Python array?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"We can use the insert (i,x), extend(), and append() functions to add an element to an array.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"Write a code to display the current time?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"From datetime import datetime<\/p>\n<p># Get the current time<\/p>\n<p>current_time = datetime.now().strftime(\\\"%H:%M:%S\\\")<\/p>\n<p># Display the current time<\/p>\n<p>print(\\\"Current Time:\\\", current_time)\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What is the difference between .py and .pyc files?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \".py files are Python source code interpreted by the Python interpreter, while .pyc files are bytecode compiled by the Python compiler, typically for built-in modules.\"\n    }\n  }]\n}\n<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Given that you\u2019re here, you\u2019re either someone who is looking to clear interviews or just someone curious enough to check out Python interview questions and answers. Whether it&#8217;s the former or the latter, I\u2019m sure you\u2019re itching to learn what kind of questions are asked during a Python interview!\u00a0 And hence, we\u2019ve compiled these Python [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":265239,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_mo_disable_npp":"","_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[23],"tags":[],"class_list":["post-265127","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analytics"],"acf":[],"aioseo_notices":[],"modified_by":"Imarticus Learning","_links":{"self":[{"href":"https:\/\/imarticus.org\/blog\/wp-json\/wp\/v2\/posts\/265127","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/imarticus.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/imarticus.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/imarticus.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/imarticus.org\/blog\/wp-json\/wp\/v2\/comments?post=265127"}],"version-history":[{"count":4,"href":"https:\/\/imarticus.org\/blog\/wp-json\/wp\/v2\/posts\/265127\/revisions"}],"predecessor-version":[{"id":265370,"href":"https:\/\/imarticus.org\/blog\/wp-json\/wp\/v2\/posts\/265127\/revisions\/265370"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/imarticus.org\/blog\/wp-json\/wp\/v2\/media\/265239"}],"wp:attachment":[{"href":"https:\/\/imarticus.org\/blog\/wp-json\/wp\/v2\/media?parent=265127"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/imarticus.org\/blog\/wp-json\/wp\/v2\/categories?post=265127"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/imarticus.org\/blog\/wp-json\/wp\/v2\/tags?post=265127"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}