What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Use bin(value) to convert an integer to a binary string: bin(10) returns '0b1010'. The 0b prefix marks the result as binary; use binary formatting when you want to omit it. Negative values get a minus sign, not a fixed-width two’s-complement representation.
Convert an integer with bin()
The built-in bin() function converts an integer to a binary string prefixed with 0b. The result is a valid Python expression. For example, bin(3) returns '0b11', and bin(10) returns '0b1010'. Python 3.14 Built-in Functions documentation
bin(3) # '0b11'
bin(10) # '0b1010'The argument can be an int or another object that implements __index__() and returns an integer. It is positional-only, so call it as bin(value), not bin(number=value). A float such as 3.5 is not accepted.
Omit or keep the 0b prefix
Use the binary format code b to get just the digits. Add # before b to include the prefix. Both format() and f-strings support these options. Python 3.14 Built-in Functions documentation
#1 Best Overall
format(14, 'b') # '1110'
format(14, '#b') # '0b1110'
f'{14:b}' # '1110'
f'{14:#b}' # '0b1110'What happens with negative integers?
bin(-10) returns '-0b1010': the minus sign is followed by the binary digits for the magnitude. This is not a fixed-width two’s-complement representation. bin() does not select a width or signedness for you. If you need a fixed-width value for a byte or protocol, define the required width and signedness and encode the value accordingly. Python’s documentation points to enum.bin() for representing negative values as two’s complement. Python 3.14 Built-in Functions documentation
Check an integer’s binary length or number of set bits
Python integers have unlimited precision. Use bit_length() to find how many binary digits are needed for the magnitude, excluding the sign and leading zeros. Use bit_count() to count the ones in the binary representation of the absolute value. Python 3.14 Built-in Types documentation
Quick Recap
(-37).bit_length() # 6
19 .bit_count() # 3Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
