>>> “hello”.encode(“hex”) ‘68656c6c6f’
相应的还可以
>>> ‘68656c6c6f’.decode(“hex”) ‘hello’
查了一下手册，还有这些codec可用
codec
aliases
operand type
purpose
base64_codec
base64, base-64
byte string
convert operand to mime base64
bz2_codec
bz2
byte string
compress the operand using bz2
hex_codec
hex
byte string
convert operand to hexadecimal representation, with two digits per byte
idna
unicode string
implements rfc 3490. new in version 2.3. see also encodings.idna
mbcs
dbcs
unicode string
windows only: encode operand according to the ansi codepage (cp_acp)
palmos
unicode string
encoding of palmos 3.5
punycode
unicode string
implements rfc 3492. new in version 2.3.
quopri_codec
quopri, quoted-printable, quotedprintable
byte string
convert operand to mime quoted printable
raw_unicode_escape
unicode string
produce a string that is suitable as raw unicode literal in python source code
rot_13
rot13
unicode string
returns the caesar-cypher encryption of the operand
string_escape
byte string
produce a string that is suitable as string literal in python source code
undefined
any
raise an exception for all conversions. can be used as the system encoding if no automatic coercion between byte and unicode strings is desired.
unicode_escape
unicode string
produce a string that is suitable as unicode literal in python source code
unicode_internal
unicode string
return the internal representation of the operand
uu_codec
uu
byte string
convert the operand using uuencode
zlib_codec
zip, zlib
byte string
compress the operand using gzip