CGI Group Python Developer Interview Questions and Answers

List is mutable, tuple is immutable in Python.

• List uses square brackets [], tuple uses parentheses ().

• List elements can be changed, added, or removed, tuple elements cannot be changed.

• Lists are used for collections of items that may need to be modified, tuples are used for fixed collections of items.

• Example: list_example = [1, 2, 3], tuple_example = (4, 5, 6)

Namespace is a way to organize variables and functions in a program to avoid naming conflicts.

• Namespace helps in avoiding naming conflicts by providing a unique space for each identifier.

• Types of namespaces include global namespace, local namespace, built-in namespace, and module namespace.

• Example: In Python, each module has its own namespace where all the variables and functions defined in that module reside.

Multiple inheritance in Python allows a class to inherit attributes and methods from more than one parent class.

• Python supports multiple inheritance by allowing a class to inherit from multiple parent classes.

• The order of parent classes in the inheritance list matters, as methods are searched for in the order they appear.

• Diamond problem can occur in multiple inheritance when two parent classes have a common ancestor cl...read more

Lambda function is an anonymous function defined using the lambda keyword in Python.

• Lambda functions are used for creating small, one-time use functions without a name.

• Syntax: lambda arguments: expression

• Example: double = lambda x: x * 2