How do I print a bytes string without the b' prefix in Python 3?
>>> print(b'hello')
b'hello'
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related: How to write bytes to a file in Python 3 without knowing the encoding?– jfsCommented Sep 8, 2017 at 15:17
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9 Answers
Use decode:
>>> print(b'hello'.decode())
hello
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@ShubhamA. The default value of the
encodingparameter when not set is indeed'utf-8': docs.python.org/3/library/stdtypes.html#bytes.decode Commented Mar 21 at 21:26
If the bytes use an appropriate character encoding already; you could print them directly:
sys.stdout.buffer.write(data)
or
nwritten = os.write(sys.stdout.fileno(), data) # NOTE: it may write less than len(data) bytes
According to the source for bytes.__repr__, the b'' is baked into the method.
One workaround is to manually slice off the b'' from the resulting repr():
>>> x = b'\x01\x02\x03\x04'
>>> print(repr(x))
b'\x01\x02\x03\x04'
>>> print(repr(x)[2:-1])
\x01\x02\x03\x04
answered Jul 29, 2019 at 6:41
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9Side note: I don't think any of the other answers truly answer the question. Commented Jul 29, 2019 at 6:42
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I think I would agree: your solution, namely
repr(x)[2:-1], produces astrobject that will print as wish. In particular,repr(b'\x01')[2:-1]returns the string\\x01, whiledecode()will return\x01which does not work as one would wish withprint(). To be even more explicit,print(repr(b'\x01')[2:-1])will print\x01whileprint(b'\x01'.decode())will not print anything.– AntoineCommented Sep 18, 2019 at 13:54 -
Alternatively,
print(repr(b"\x01".decode()))will print'\x01'(a string including the single quotes ), so thatprint(repr(b"\x01".decode())[1:-1])prints\x01(a string without the single quotes ).– AntoineCommented Sep 18, 2019 at 14:04 -
I was hoping to rid of endless x.encode x.decode nonsense forever in py3 but still need this repr(x)[2:-1] stuff when dealing with encrypted data from py2 in py3... Sad...– SYKCommented Dec 6, 2023 at 10:26
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The note that this is because of
bytes.__repr__is great, but the recommendation ofprint(repr(x)[2:-1])is pretty darn ugly! Not a fan of the proposed solution, although this answer is very educational. Commented Mar 21 at 21:18
If the data is in an UTF-8 compatible format, you can convert the bytes to a string.
>>> print(str(b"hello", "utf-8"))
hello
Optionally, convert to hex first if the data is not UTF-8 compatible (e.g. data is raw bytes).
>>> from binascii import hexlify
>>> print(hexlify(b"\x13\x37"))
b'1337'
>>> print(str(hexlify(b"\x13\x37"), "utf-8"))
1337
>>> from codecs import encode # alternative
>>> print(str(encode(b"\x13\x37", "hex"), "utf-8"))
1337
To show or print:
<byte_object>.decode("utf-8")
To encode or save:
<str_object>.encode('utf-8')
answered Oct 5, 2020 at 20:22
I am a little late but for Python 3.9.1 this worked for me and removed the -b prefix:
print(outputCode.decode())
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1this seems like a duplicate of a previous answer: stackoverflow.com/a/16748087/2103990 Commented Apr 5 at 16:53
It's so simple... (With that, you can encode the dictionary and list bytes, then you can stringify it using json.dump / json.dumps)
You just need use base64
import base64
data = b"Hello world!" # Bytes
data = base64.b64encode(data).decode() # Returns a base64 string, which can be decoded without error.
print(data)
There are bytes that cannot be decoded by default(pictures are an example), so base64 will encode those bytes into bytes that can be decoded to string, to retrieve the bytes just use
data = base64.b64decode(data.encode())
Use decode() instead of encode() for converting bytes to a string.
>>> import curses
>>> print(curses.version.decode())
2.2
i know this has been answered but
encoded = str(encoded).replace('b', '', 1)
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Also need to replace quotes.I ended up using this.
str(encoded)[2:-1]Commented Apr 11 at 18:22