anandtripathi5

from flask_socketio import Namespace, disconnect
from flask import current_app as app

from extensions import db


class BaseSocket(Namespace):
    
    def on_connect(self):
        pass

anandtripathi5

from flask import Flask

from extensions import socketio


def create_app():
    app = Flask(__name__)

    # other initializations and configurations
    ...

anandtripathi5

from flask_socketio import SocketIO

socketio = SocketIO(async_mode="gevent", cors_allowed_origins='some url')

anandtripathi5

# Using the % operator
proglang = "Python"
print('The Zen of %s' % proglang)

# Using the .format() method
my_str = 'The Zen of {}'
print(my_str.format(proglang))

# Using f-strings
print(f"The Zen of {proglang}")

anandtripathi5

# Bad

capitals = dict(india='delhi', netherlands='amsterdam')
try:
    captial = capitals['kenya']
except:
    print("What is this error")
    
# Good
try:

anandtripathi5

# Bad

try:
    mylist = get_items()
exception Exception as e:
    pass
return mylist

# Good
import logging

anandtripathi5

if i>0: return sqrt(i)
elif i==0: return 0
else: return 1j * sqrt(-i)


# Versus

if i > 0:
    return sqrt(i)
elif i == 0:

anandtripathi5

for i in xrange(5):
  print i

anandtripathi5

counter = 0
while counter < 5:
  print counter
  counter += 1

anandtripathi5

# c,a,b,d are some random variables
c = a and b or d
# or
if a:
  c = b
else:
  c = d