Convert int to 32 bit binary python

I am trying to make a program that converts a given integer[limited by the value 32 bit int can hold] into 32 bit binary number. For example 1 should return [000..31times]1. I have been searching the documents and everything but haven't been able to find some concrete way. I got it working where number of bits are according to the number size but in String. Can anybody tell a more efficient way to go about this?

asked Mar 26, 2017 at 2:37

4

'{:032b}'.format[n] where n is an integer. If the binary representation is greater than 32 digits it will expand as necessary:

>>> '{:032b}'.format[100]
'00000000000000000000000001100100'
>>> '{:032b}'.format[8589934591]
'111111111111111111111111111111111'
>>> '{:032b}'.format[8589934591 + 1]
'1000000000000000000000000000000000'    # N.B. this is 33 digits long

answered Mar 26, 2017 at 2:56

mhawkemhawke

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3

You can just left or right shift integer and convert it to string for display if you need.

>>> 1> "{:032b}".format[2]
'00000000000000000000000000000010'
>>>

or if you just need a binary you can consider bin

>>> bin[4]
'0b100'

answered Oct 14, 2018 at 15:28

Andy WongAndy Wong

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Say for example the number you want to convert into 32 bit binary is 4. So, num=4. Here is the code that does this: "s" is the empty string initially.

for i in range[31,-1,-1]:
    cur=[num>>i] & 1 #[right shift operation on num and i and bitwise AND with 1]
    s+=str[cur]
print[s]#s contains 32 bit binary representation of 4[00000000000000000000000000000100]

00000000000000000000000000000100

Dharman♦

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answered Jan 8, 2021 at 17:19

x = 12
print[format[x, '08b']]
print[format[x, '010b']]

00001100

Python: Tips of the Day

Cumulative summing a sequence of numbers [calculating the cumulative sum of zero to ten with skips]:

>>> import numpy as np
>>> res = list[np.cumsum[range[0,10,2]]]
>>> res
[ 0,  2,  6, 12, 20]

Are there any Python methods to convert an Integer [or Long] into a binary string? Yes, there are basically three methods you can use to convert int to binary string in Python.

There are 8 bits in a byte. Bits either consist of a 0 or 1. A byte can be interpreted in different ways, like binary octal or hexadecimal. This certainly shows a string of bits can be interpreted differently in different ways.

To convert Python int to a binary string,

1. Use bin[] function.
2. Using the format[] method.
3. Use the str.format[] function.

Converting int to binary using bin[]

To convert int to binary in Python, use the bin[] method. The bin[] is a built-in Python method that converts a decimal to a binary data type. The bin[] function accepts a number as an argument and returns its equivalent binary string prefixed with “0b”.

binary = bin[19]

print[binary]

Output

0b10011

And we get the binary string in the output. The bin[] is the faster method than the rest of the approaches since it takes less time to convert into binary.

Python Int to Binary using format[] method

By using the bin[] method, it returns an output with “0b” as a prefix. To remove the “0b” prefix from its output, use the format function and format the output.

The format[value, format_spec] is a built-in Python function that accepts two parameters – value and format_spec and returns the formatted output according to the format_spec.

bindata = format[19, "b"]

print[bindata]

Output

10011

And we get the output without “0b” in the prefix.

If you want an n-bit representation of binary, you can use the lambda function.

getbinary = lambda x, n: format[x, 'b'].zfill[n]

print[getbinary[11, 21]]

Output

000000000000000001011

And we get the binary string of length 21.

Convert Int to Binary using str.format[] function

The string.format[] is a built-in Python method that formats the specified value[s] and inserts them inside the string’s placeholder. The placeholder is defined using curly brackets: { }.

The string.format[] method allows multiple substitutions and value formatting. The format[] method accepts value and format as arguments and returns the formatted value.

dart = "{0:b}".format[19]

print[dart]

Output

10011

Let me explain this example.

1. {} places a variable into a string.
2. 0 takes the variable at argument position 0.
3. : adds formatting options for this variable [otherwise, it would represent decimal 6].
4. b converts the number to its binary representation.

Conclusion

Converting an integer to binary results in a string representing the integer in base 2. For example, integer 5 has the binary representation “0b101”.

We saw all three methods to convert from integer value to a binary string, and based on your requirement, and you can use one of these approaches.

That is it for this tutorial.

How do you get a 32

How do you represent a 32

How do you convert int to binary in Python?

How do you convert a decimal to 32