pip install virtualenv
virtualenv -p python3 --no-site-packages /path/to/new/virtual/environment 

python3 -m venv /path/to/new/virtual/environment

pip install -r requirements.txt

# activate venv first
source venv/bin/activate
# create config file on project_base_dir/local_settings.py
FLASK_APP=manage.py flask create
# modify local_settings.py for your own.
vim local_settings.py
# after you finish this, run next command
FLASK_APP=manage.py flask init

FLASK_ENV=development FLASK_DEBUG=1 flask run

FLASK_ENV=development flask run

flask run

# activate venv first
source venv/bin/activate

# common background task
celery -A application.util.background_task worker --loglevel=info
# scholar payment
celery -A application.module.payment.scholar.app worker --loglevel=info
# network usage monitor
python application/module/network_usage_monitor/app.py