base64.b64decode()
EncodingDecodes a Base64-encoded bytes or string object back to original bytes.
Signature
base64.b64decode(s)
Returns
bytesExample
import base64
data = base64.b64decode('SGVsbG8sIFdvcmxkIQ==')
print(data) # b'Hello, World!'
print(data.decode('utf-8')) # 'Hello, World!'About base64.b64decode()
base64.b64decode is a Python encoding function with the signature base64.b64decode(s). Decodes a Base64-encoded bytes or string object back to original bytes. It returns a value of type bytes.
Python provides a rich set of built-in functions and standard library modules that cover common programming tasks. Understanding these functions helps you write more idiomatic, efficient Python code. The base64.b64decodefunction is commonly used in data processing, web development, scripting, and automation tasks.
When working with base64.b64decode(), consider edge cases like empty inputs, None values, and type mismatches. Python's duck typing means many built-in functions work with any object that implements the required protocol (e.g., __len__ for len(), __iter__ for iteration). This flexibility is a key strength of Python's design philosophy.