Virtual Environments

My man Corey Schafer has a video here on pipenv that combines virtualenv and pip

# packages only in dev environment
--dev

# remove a package
pipenv uninstall packageName

# update python version used to 3.6 from 3.7
# update value in pipfile
# recreate virtual environment
pipenv --python 3.6

# run python for current environment
pipenv run python

# check executable running from python
import sys
sys.executable

# You can also remove the environment completely and then recreate from scratch using the pip file
pipenv --rm

# and then create virtual environment that matches your pip file
pipenv install 

# To activate this project's virtualenv, run
pipenv shell

#Alternatively, run a command inside the virtualenv with 
pipenv run

# path to virtual environment
pipenv --venv

# easily check for known vulnerabilities
pipenv check

# display a dependency graph
pipenv graph

# push to exact versions of packages in production
# update pipfile.lock with current dependencies
pipenv lock

# install environment from pipfile.lock
# instead of from default pipfile
pipenv install --ignore-pipfile

# environment variables by creating .env file
pipenv run python
import os
os.environ['SECRET_KEY'] // returns value
! Do not commit the .env file

Pydantic

Docs here

Notes from Eric Roby MySQL Video

Silos the environment with the “python3 -m venv env” command

pip install fastapi uvicorn sqlalchemy pymysql

Make sure environment is activated

Note: ran into a bunch of issues with typing.Annotated. Saw on Stack overflow here that “FastAPI 0.9.5 (released yesteday) adds support for dependencies and parameters using Annotated.” So I tried upgrading from 0.70 to 0.100.1 which is the latest release.

This fixed the errors.

Sidenote: the fastapi docs said “Fast: Very high performance, on par with NodeJS and Go (thanks to Starlette and Pydantic).”

Random

Note: Revisited python in June 2022 after listening to some Wang and Oliphant on Lex Fridman podcast.

Upgraded interpreter from 3.7 to 3.10

Pycharm Community by Jetbrains: I have 2019.1.4 and to upgrade to 2022.1.1 is 3.4GB!? No Thank you I will stick with VSCode or current JetBrains.

Sources

Derek Banas 2 hour video here.

FastAPI Authentication with JWT by Bek Brace here

FastAPI with MySQL database by Eric Roby here

7 hour Django course on Traversy Channel