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'''
●Finally, uncomment the code that imports Camera from camera_pi,
# from camera_pi import Camera
delete in front of #, note that there is a space after the # here, and also delete, the changed code is as
follows:
from camera_pi import Camera
●The following is the complete code of the modified app.py:
#!/usr/bin/env python
from importlib import import_module
import os
from flask import Flask, render_template, Response
# import camera driver
'''
if os.environ.get('CAMERA'):
Camera = import_module('camera_' + os.environ['CAMERA']).Camera
else:
from camera import Camera
'''
# Raspberry Pi camera module (requires picamera package)
from camera_pi import Camera
app = Flask(__name__)
@app.route('/')
def index():
"""Video streaming home page."""
return render_template('index.html')
def gen(camera):
"""Video streaming generator function."""
while True:
frame = camera.get_frame()
yield (b'--frame\r\n'
b'Content-Type: image/jpeg\r\n\r\n' + frame + b'\r\n')
@app.route('/video_feed')
def video_feed():
"""Video streaming route. Put this in the src attribute of an img tag."""
return Response(gen(Camera()),