Python2/3 字符串转16进制 16进制转字符串

字符串转十六进制

hex = "hello".encode('hex')
print hex

在python3中，hex编解码器被废弃。改用binascii

import binascii
hex = binascii.hexlify(b'hello')
print(hex)

hex = "68656c6c6f"
print hex.decode('hex')

import binascii
hex = b'68656c6c6f'
s = binascii.unhexlify(hex)
print(s)

如果需要去除字节前缀b，（参考python去掉空格和 b - effortsing - 博客园
）只需

print(str(binascii.unhexlify(hex)).strip('b'))

hex = "68656c6c6f"
for i in range(0, len(hex), 2):
    print(chr(int(hex[i:i+2], 16)),end="")