Python hexadecimal conversion, python hexadecimal conversion

Python hexadecimal conversion, python hexadecimal conversion

In Python, the binary value starts with 0 B:
For example, 0b11 indicates 3 in decimal format.
The octal format starts with 0:
For example, 011 indicates 9 in decimal format.
Hexadecimal is prefixed with 0x:
For example, 0x11 indicates 17 in decimal format.

Global Definition

base = [str(x) for x in range(10)] + [ chr(x) for x in range(ord('A'),ord('A')+6)]

 

Binary to decimal: int (str, n = 10)

def bin2dec(string_num):    return str(int(string_num, 2))

 

Hexadecimal to decimal

def hex2dec(string_num):    return str(int(string_num.upper(), 16))

 

Decimal to binary: bin ()

def dec2bin(string_num):    num = int(string_num)    mid = []    while True:        if num == 0: break        num,rem = divmod(num, 2)        mid.append(base[rem])    return ''.join([str(x) for x in mid[::-1]])

 

Decimal to octal: oct ()

 

Decimal to hexadecimal: hex ()

def dec2hex(string_num):    num = int(string_num)    mid = []    while True:        if num == 0: break        num,rem = divmod(num, 16)        mid.append(base[rem])    return ''.join([str(x) for x in mid[::-1]])

 

Hexadecimal to binary: bin (int (str, 16 ))

def hex2bin(string_num):    return dec2bin(hex2dec(string_num.upper()))

 

Binary to hexadecimal: hex (int (str, 2 ))

def bin2hex(string_num):    return dec2hex(bin2dec(string_num))