add venv to flask project code example
Example 1: import flask
from flask import Flask
app = Flask(__name__)
@app.route('/')
def hello_world():
return 'Hello, World!'
Example 2: install flask in venv
$ pip install Flask
from flask import Flask
app = Flask(__name__)
@app.route('/')
def hello_world():
return 'Hello, World!'
$ pip install Flask