Python 3.9 - 'array.array' object has no attribute 'tostring'

[h3x2b]

Hello,
there is some issue with python 3.9.1 compatibility.

Configuration

impacket version:
impacket-0.9.22

Python version:
Python 3.9.1

Target OS:
Linux (Fedora 33)

Debug Output With Command String

$ python3 -c 'import impacket.ImpactPacket ; impacket.ImpactPacket.IP().get_packet()'
Traceback (most recent call last):
File "", line 1, in
File "/usr/lib/python3.9/site-packages/impacket/ImpactPacket.py", line 784, in get_packet
if self.get_ip_len() == 0:
File "/usr/lib/python3.9/site-packages/impacket/ImpactPacket.py", line 882, in get_ip_len
return self.get_word(2)
File "/usr/lib/python3.9/site-packages/impacket/ImpactPacket.py", line 100, in get_word
(value,) = struct.unpack(order + 'H', bytes.tostring())
AttributeError: 'array.array' object has no attribute 'tostring'