Building python extension: Pass binary string (bytes) from python to codon

[vsevolod-fedorov]

Hello.

I am trying to write python extension in codon. The idea is to decode binary data in codon.

As I understand, codon does not support unicode. So, when I try to write a function receiving string type (str), it wants 'str' parameter from python, but handles it as if it was 'bytes'.
And 'bytes' type seems to be unavailable in codon.

So question is: Is there is a way to pass binary string (bytes) to/from codon python extension?

Examples:
Codon:

def str_len(s: str) -> int:
    return len(s)

Python:

my_ext.str_len('ф')  # A unicode symbol.
-> 2
my_ext.str_len(b'\x30')
-> TypeError: could not find callable method 'str_len' for given arguments

[arshajii]

Hi @vsevolod-fedorov, we should be able to support this by just converting the bytes object to a Codon string. I've created a PR for this here: #646 -- should be able to get this into the next release.

[vsevolod-fedorov]

Thank you.