# install needed packages
$ sudo apt install python3-pip python3-venv
# or
$ sudo pip3 install virtualenv

# create and change into Project directory
$ mkdir -p ~/Projects/TCPPortScanner && cd ~/Projects/TCPPortScanner

# create virtualenv
$ virtualenv -p python3 venv
# or
$ python3 -m venv venv

# activate virtualenv
$ . venv/bin/activate

# install requirements
(venv) $ pip install -r requirements.txt
# or
(venv) $ pip install scapy

# list packages (optional)
(venv) $ pip freeze

# make file executable
(venv) $ chmod u+x TCPPortScan.py

# show help (optional)
(venv) $ sudo venv/bin/python ./TCPPortScan.py --help

# start single port scan
(venv) $ sudo venv/bin/python ./TCPPortScan.py mydomain.tld -p 80

# start single port scan and show closed
(venv) $ sudo venv/bin/python ./TCPPortScan.py mydomain.tld -p 443 --all

# start port scan of range and show closed
(venv) $ sudo venv/bin/python ./TCPPortScan.py mydomain.tld -r 22-443 --all

Start scanning port 80 on target example.com
Port 80 is open