hex « integer « Python Data Type Q&A

1. Convert hex string to int in Python    stackoverflow.com

How do I convert a hex string to an int in Python? I may have it as "0xffff" or just "ffff".

2. How to get hex string from signed integer    stackoverflow.com

Say I have the classic 4-byte signed integer, and I want something like print hex(-1) to give me something like >> 0xffffffff In reality, the above gives me -0x1. I'm dawdling about ...

3. Is there a better way than int( byte_buffer.encode('hex'), 16 )    stackoverflow.com

In Python, I'm constantly using the following sequence to get an integer value from a byte buffer (in python this is a str). I'm getting the buffer from the struct.unpack() routine. ...

4. subclassing int to attain a Hex representation    stackoverflow.com

Basically I want to have access to all standard python int operators, eg __and__ and __xor__ etc, specifically whenever the result is finally printed I want it represented in Hex format. ...

5. How to convert string to hexadecimal integer in Python?    stackoverflow.com

hi I get user argv from command line as follows: '0x000aff00' and I want python to treat it as hex directly...

str = sys.argv[1]

6. Python: How to change hex string int integer?    stackoverflow.com

Possible Duplicate:
Convert hex string to int in Python

7. Python, int to hex string    stackoverflow.com

I want to take an integer (that will be <= 255), to a hex string representation eg: I want to pass in 65 and get out '\ x41', or 255 and get ...

8. What's the easiest way to convert a list of hex byte strings to a list of hex integers?    stackoverflow.com

I have a list of hex bytes strings like this ['BB', 'A7', 'F6', '9E'] (as read from a text file) How do I convert that list to this format? [0xBB, 0xA7, 0xF6, 0x9E]

9. How to convert hex string to integer in Python?    stackoverflow.com

How to convert

x = "0x000000001" # hex number string

y = "1"

10. How to print a signed integer as hexadecimal number in two's complement with python?    stackoverflow.com

I have a negative integer (4 bytes) of which I would like to have the hexadecimal form of its two's complement representation.

>>> i = int("-312367")
>>> "{0}".format(i)
'-312367'
>>> "{0:x}".format(i)
'-4c42f'

11. Python: Integer to Base 32 hex (aka. Triacontakaidecimal)    stackoverflow.com

Ok so going from Base 32 hex (aka. Triacontakaidecimal) to integer is pretty easy for example:

>>>int("v", 32)
31

12. Hex string to signed int in Python 3.2?    stackoverflow.com

How do I convert a hex string to a signed int in Python 3.2? The best I can come up with is

h = '9DA92DAB'
b = bytes(h, 'utf-8')
ba = binascii.a2b_hex(b)
print(int.from_bytes(ba, byteorder='big', signed=True))

13. Python - how to convert int to string represent a 32bit Hex number    stackoverflow.com

I want to get a python solution for this problem: e.g.

integer 1 -> string "0x00000001"
integer 64 -> string "0x00000040"
integer 3652458 -> string "0x0037BB6A"

14. how to convert negative integer value to hex in python    stackoverflow.com

I use python 2.6

>>> hex(-199703103)
'-0xbe73a3f'

>>> hex(199703103)
'0xbe73a3f'

15. Equivalent of python's int('hex-string', 16) in Javascript?    stackoverflow.com

Possible Duplicate:
How to convert decimal to hex in JavaScript?