float()
TypeConverts a string or number to a floating-point number.
Signature
float(x)
Returns
floatExample
print(float('3.14')) # 3.14
print(float(42)) # 42.0
print(float('inf')) # infAbout float()
float is a Python type function with the signature float(x). Converts a string or number to a floating-point number. It returns a value of type float.
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 floatfunction is commonly used in data processing, web development, scripting, and automation tasks.
When working with float(), 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.