statix83, what shell you are using to run the script?
Check your PATH and PYTHONPATH variables

sudo python setup.py install
Traceback (most recent call last):
File "setup.py", line 21, in
from setuptools import setup
ImportError: No module named setuptools

how to install this its shows error while installing

run sudo apt-get install -y python-setuptools and then try again

ModuleNotFoundError: No module named 'modules'

getting this error once I'm running this command
knockpy -h

Traceback (most recent call last):
File "C:\Python36\Scripts\knock-4.1\knockpy\knockpy.py", line 6, in
from modules import resolve
File "C:\Python36\Scripts\knock-4.1\knockpy\modules\resolve.py", line 2, in
import header
ModuleNotFoundError: No module named 'header'

But there is a header.py in the module folder...

Replacing "import header" with "from modules import header" will work. #71

Traceback (most recent call last):
File "/opt/knock/knockpy/knockpy.py", line 7, in
from knockpy.lib import output, request, wordlists, report, scan, extraargs, logo
File "/opt/knock/knockpy/knockpy.py", line 7, in
from knockpy.lib import output, request, wordlists, report, scan, extraargs, logo
ModuleNotFoundError: No module named 'knockpy.lib'; 'knockpy' is not a package

I'm getting this error

File "/home/callmerb/hack/tools/knock/knockpy.py", line 7, in
from knockpy import knockpy
ImportError: cannot import name 'knockpy' from partially initialized module 'knockpy' (most likely due to a circular import) (/home/callmerb/hack/tools/knock/knockpy.py)