dkhmelenko

ratings = {"Namaste": 3.8, "At Luigi": 3.7, "Peruvian": 4.4, "Hannes": 3.9, "Creperie": 4.2}
top_rated = {name: rating for name, rating in ratings.items() if rating > 4.0}
print(top_rated)

dkhmelenko

input_string = "Lorem ipsum"

content = read_characters(input_string)
for item in content:
    print(f"Current char {item}")

dkhmelenko

def print_address(address):
    def decorator(original_function):
        print(f"Sending to {address}")
        original_function()

    return decorator

dkhmelenko

@print_address("Munich, Germany")
def ship_package():
    print("Package Shipped")

dkhmelenko

city_companies = {
    apple: ["Boston", "Seattle", "San Francisco"],
    uniliver: ["London", "Sussex"],
    microsoft: ["Seattle", "Austin", "Denver"],
    amazon: ["Portland", "Denver", "Washington"],
    starbucks: ["Beijing", "Seattle", "Munich"]
}

tech_giants = [:apple, :microsoft, :amazon]

dkhmelenko

class UpdatesController < ApplicationController
    include ActionController::Live

    def updates
        response.headers["Content-Type"] = "text/event-stream"
        sse = SSE.new(response.stream, retry: 1000, event: "time_update")
        sse.write(Time.now)
    ensure
        sse.close
    end

dkhmelenko

var source = new EventSource('/updates');
source.addEventListener('time_update', function(event) {
  console.log(event.data);
});

...

source.close();

dkhmelenko

from aws_cdk import (aws_s3, aws_s3_notifications, core, aws_sns)

# create S3 bucket
s3 = aws_s3.Bucket(self, "s3bucket_cdk")

# define SNS topic ans assign it
sns_topic = aws_sns.Topic(self, "CDK Notification")
sns_notification = aws_s3_notifications.SnsDestination(sns_topic)

# assign notification for the s3 event type when new object created

dkhmelenko

import boto3

review_text = 'The service was terrible! The food was cold and the staff was rude. Def not recommended'

client = boto3.client('comprehend')
response = client.detect_sentiment(Text=review_text, LanguageCode="en")

print(response['Sentiment'])

dkhmelenko

def authenticate(user):
    def decorator(request):
        add_auth_headers()
        request()
        
    def add_auth_headers():
        ...

    return decorator