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Convert int to binary string in Python

python
format-specifiers
f-strings
binary-conversion
Alex KataevbyAlex Kataev·Dec 22, 2024
TLDR

Quickly turn an integer into a binary string in Python:

binary_string = bin(your_integer)[2:]

Need a fixed number of bits? The format() function can help:

binary_string = format(your_integer, '08b')

For instance, when converting the integer 42:

binary_string = bin(42)[2:] # '101010' => more folks than there were on Noah's Ark padded_binary = format(42, '08b') # '00101010' => just like Noah's Ark, but wearing a coat

Savour the simplicity and power Python brings to handling numeric conversions. Now let's dive a bit deeper. Grab your oxygen tanks!

Format() function & f-strings – Your Swiss Army Knife

Using format() specifiers – elaborate fashion

In Python's wardrobe, the format() function belts out numerous costume changes. With binary numbers, you can tailor to fit:

  • Include the 0b prefix to recognise a binary number:
binary_string_with_prefix = format(your_integer, '#b')
  • Lead with zeros for padded elegance:
binary_string_padded = format(your_integer, '08b')

f-strings – the new black

Python 3.6 gave us f-strings - blowing a fresh wind through string formatting with simplicity and elegance:

binary_string = f'{your_integer:b}'

Additionally, f-strings let you style your binary with the 0b prefix and a neat padding:

formatted_binary_string = f'{your_integer:#010b}'

Making code work harder, smarter – Python's Secret Sauce

Lambda for inline conversion – the pocket knife

Why carry a toolbox when a pocket knife will do? Here's how to get a binary string using a concise lambda:

binary = lambda x: format(x, 'b')

This is as compact as it gets. Just call binary(your_integer) when you need your binary string.

Problem subdivision – serving in manageable bites

Complex problems seem simpler when broken down. Turning an integer into a length-fixed binary string is as simple as a two-step recipe: convert then pad:

binary_string = bin(your_integer)[2:] fixed_length_binary = binary_string.zfill(required_length) # Binary buns with patty, anyone?

Official Documentation – The Oracle speaks

The Python official documentation is your mentor, your guide. Refer to it when you need deeper understanding on formatting options and efficient coding techniques.

Using existing tools – On the shoulders of giants

Standard over third-party libraries – keep it homegrown

Native is neat. Where you can, use Python's built-in libraries. Reach out to third-party libraries only when the built-in can't meet your specific requirements.

Code snippet collection – DIY toolkit

Buy once, use many times. Your DIY toolkit. Save your binary conversion and other code snippets for future use.

Journey to efficiency – Shed the flab

Writing efficient code is an art - especially in loops or recursion. Whether you're dealing with a massive dataset or real-time processing, make sure your binary conversion methods sizzle with speed and slim on memory usage.