What is a function in Python? Answer: A function is a block of reusable code that performs a specific task. It takes inputs, performs operations, and returns an output.
How do you define a function in Python? Answer: You can define a function using the “def” keyword followed by the function name, parentheses for parameters, and a colon.
What is the syntax to call a function in Python? Answer: To call a function, you simply write the function name followed by parentheses, optionally passing any required arguments.
What are the benefits of using functions in Python? Answer: Functions help in code organization, reusability, and modularity. They promote code readability and reduce code duplication.
Can a function in Python return multiple values? Answer: Yes, a function can return multiple values using tuples, lists, or other data structures.
How do you pass arguments to a function in Python? Answer: You can pass arguments to a function by including them inside the parentheses when calling the function.
What are default arguments in Python functions? Answer: Default arguments are values assigned to parameters that are used when no argument is provided during function call.
How do you specify a variable number of arguments in a function? Answer: You can use the “*” (asterisk) before a parameter to indicate a variable number of arguments. It is commonly known as “args”.
What is the purpose of the “return” statement in Python? Answer: The “return” statement is used to exit a function and return a value or multiple values to the caller.
Can a Python function modify a variable declared outside its scope? Answer: Yes, a function can modify a variable declared outside its scope if the variable is defined as global using the “global” keyword.
What is a recursive function in Python? Answer: A recursive function is a function that calls itself during its execution. It allows solving complex problems by breaking them into smaller subproblems.
How do you document a Python function? Answer: You can document a Python function using docstrings, which are enclosed in triple quotes and provide information about the function's purpose, parameters, and return value.
What is a lambda function in Python? Answer: A lambda function is a small anonymous function defined using the “lambda” keyword. It can take any number of arguments but can only have one expression.
How do you access a function's documentation? Answer: You can access a function's documentation using the built-in “help()” function or by accessing the function's “doc” attribute.
What is function overloading in Python? Answer: Unlike some other programming languages, Python does not support function overloading, where multiple functions can have the same name but different parameters.
Can a Python function return multiple data types? Answer: Yes, a Python function can return multiple data types. The types can be specified using tuples, lists, or other data structures.
What is the purpose of the “pass” statement in a function? Answer: The “pass” statement is a placeholder that does nothing. It is used when a statement is syntactically required but you want to do nothing.
Can you define a function inside another function in Python? Answer: Yes, you can define a function inside another function. It is known as a nested function or an inner function.