bin()

Math

Converts an integer to a binary string prefixed with '0b'.

Signature

bin(x)

Returns

str

Example

print(bin(10))   # 0b1010
print(bin(255))  # 0b11111111
print(bin(-7))   # -0b111

About bin()

bin is a Python math function with the signature bin(x). Converts an integer to a binary string prefixed with '0b'. It returns a value of type str.

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 binfunction is commonly used in data processing, web development, scripting, and automation tasks.

When working with bin(), 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.

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