Problem Installation

[mzbahdesign12]

Hi,
Glad to be one of the part form you project.
I wanna tell you that I have some problem when I install that plugin in Zabbix Server version 5.4 and Ubuntu 20.04.
The problem already exist when i use command "sudo pip3 install ruamel.yaml==0.14.12" like the log below :

@zabbix:~$ sudo pip3 install ruamel.yaml==0.14.12
sudo: unable to resolve host zabbix: Name or service not known
Collecting ruamel.yaml==0.14.12
Downloading ruamel.yaml-0.14.12.tar.gz (242 kB)
|████████████████████████████████| 242 kB 3.7 MB/s
ERROR: Command errored out with exit status 1:
command: /usr/bin/python3 -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-htwmlr_j/ruamel.yaml/setup.py'"'"'; file='"'"'/tmp/pip-install-htwmlr_j/ruamel.yaml/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-install-htwmlr_j/ruamel.yaml/pip-egg-info
cwd: /tmp/pip-install-htwmlr_j/ruamel.yaml/
Complete output (11 lines):
Traceback (most recent call last):
File "", line 1, in
File "/tmp/pip-install-htwmlr_j/ruamel.yaml/setup.py", line 171, in
pkg_data = _package_data(file.replace('setup.py', 'init.py'))
File "/tmp/pip-install-htwmlr_j/ruamel.yaml/setup.py", line 150, in _package_data
data = literal_eval(u''.join(lines))
File "/tmp/pip-install-htwmlr_j/ruamel.yaml/setup.py", line 122, in literal_eval
return _convert(node_or_string)
File "/tmp/pip-install-htwmlr_j/ruamel.yaml/setup.py", line 69, in _convert
if isinstance(node, (Str, Bytes)):
NameError: name 'Str' is not defined
----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

Could you please help me to solved the problem?

Thank you.