TypeError: can only concatenate str (not “int”) to str
The error message: TypeError: can only concatenate str (not “int”) to str occurs when you try to combine a string (str) with an integer (int) using the + operator. 1…..
Tag: Error Handling
TypeError: unsupported operand type(s)
The error message: TypeError: unsupported operand type(s) for X: ‘type1’ and ‘type2’ occurs when you try to perform an operation between incompatible data types. 1. Causes and Solutions Cause 1:….
KeyError: accessing a non-existent dictionary key” in Python
The error message: KeyError: ‘some_key’ occurs when you try to access a key in a dictionary that does not exist. 1. Causes and Solutions Cause 1: Accessing a Missing Key….
ImportError: cannot import name ‘xyz’
The error message: ImportError: cannot import name ‘xyz’ from ‘module_name’ occurs when Python fails to import a specific function, class, or variable from a module. 1. Causes and Solutions Cause….
ModuleNotFoundError: No module named ‘xyz’
The error message: ModuleNotFoundError: No module named ‘xyz’ occurs when Python cannot find the module xyz because: 1. Causes and Solutions Cause 1: The Module is Not Installed If the….
AttributeError: module ‘math’ has no attribute ‘sine’
The error message: AttributeError: module ‘math’ has no attribute ‘sine’ occurs when you try to access an attribute (function, variable, or object) that does not exist in the math module…..
UnboundLocalError: local variable referenced before assignment
The error message: UnboundLocalError: local variable ‘variable_name’ referenced before assignment occurs when you try to use a local variable inside a function before it has been assigned a value. 1…..
NameError: function is not defined
The error message: NameError: name ‘function_name’ is not defined occurs when Python cannot recognize a function because it has not been defined or is used incorrectly. 1. Causes and Solutions….
Sending HTTP Requests with Requests Module
The requests module in Python is a popular library for sending HTTP requests. It simplifies interactions with web services by handling headers, cookies, authentication, and more. Installing the Requests Module….
Using Assertions in Python
Assertions in Python are a debugging tool used to test if a certain condition is True during runtime. If the condition evaluates to False, an AssertionError exception is raised, providing….