Python.txt

pip list
pip list --local
pip freeze -> prints all installed library

Upgrade pip:  
python3 -m pip install --upgrade pip

python -m pip install findspark

pip3 install -r requirements.txt

jupyter notebook
Shift+Enter : run notebook​ cell
Shift+Tab : opens documentation
.Tab : code suggest

#comment
'''Multi line comment'''

Create Virtual Environment:
python3 -m venv venv

Create a virtual environment using the virtualenv:
virtualenv venv --python=python3.7

Activate the Virtual Environment:
source venv/bin/activate
(or)
venv\Scripts\activate (Windows)

pip3 install Flask-RESTful

Install Dependencies:
pip3 install -r requirements.txt

Verify Installation:
pip3 list

To stop:
deactivate

To remove:
rm -rf venv

pip3 uninstall -r requirements.txt -y

Instead of uninstalling all global packages, save the diff and only uninstall those package when running on global:
pip3 freeze > before.txt
pip3 freeze > after.txt
diff before.txt after.txt
pip3 uninstall -r newly_installed.txt -y

jupyter notebook titanic_survival_exploration.ipynb

for inline equation in MathJax:
pip install https://github.com/mitya57/python-markdown-math/archive/master.zip

#Image Classification
python retrain.py --image_dir=./flower_photos
tensorboard --logdir /tmp/retrain_logs
python try-retrain.py test-images/tulip2.jpg

# Jupyter to view groupby items
for key, item in group:
    print(group.get_group(key), "\n")
    
Anaconda:
conda create -n aggregation-framework python=3.6 anaconda
source activate aggregation-framework
jupyter notebook 
# now open http://localhost:8888/ 
# any notebooks (ipynb files) that you place in the aggregation-framework directory or any of its subdirectories will appear and be executable in this interface