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@goloroden
goloroden / app.js
Last active June 22, 2023 02:10
Async constructors for JavaScript
// In JavaScript, constructors can only be synchronous right now. This makes sense
// from the point of view that a constructor is a function that returns a newly
// initialized object.
//
// On the other hand, it would sometimes be very handy, if one could have async
// constructors, e.g. when a class represents a database connection, and it is
// desired to establish the connection when you create a new instance.
//
// I know that there have been discussions on this on StackOverflow & co., but
// the so-far mentioned counter arguments (such as: doesn't work as expected
@kndt84
kndt84 / authorize.js
Last active April 10, 2024 15:15
Sample code: how to refresh session of Cognito User Pools with Node.js and Express
const AWS = require('aws-sdk');
const CognitoUserPool = require('amazon-cognito-identity-js-node').CognitoUserPool;
const CognitoUserSession = require('amazon-cognito-identity-js-node').CognitoUserSession;
const CognitoUser = require('amazon-cognito-identity-js-node').CognitoUser;
const CognitoIdToken = require('amazon-cognito-identity-js-node').CognitoIdToken;
const CognitoAccessToken = require('amazon-cognito-identity-js-node').CognitoAccessToken;
const CognitoRefreshToken = require('amazon-cognito-identity-js-node').CognitoRefreshToken;
const cfg = require('config').config;
const COGNITO_IDENTITY_POOL_ID = cfg.COGNITO_IDENTITY_POOL_ID;
@fchollet
fchollet / classifier_from_little_data_script_3.py
Last active September 13, 2023 03:34
Fine-tuning a Keras model. Updated to the Keras 2.0 API.
'''This script goes along the blog post
"Building powerful image classification models using very little data"
from blog.keras.io.
It uses data that can be downloaded at:
https://www.kaggle.com/c/dogs-vs-cats/data
In our setup, we:
- created a data/ folder
- created train/ and validation/ subfolders inside data/
- created cats/ and dogs/ subfolders inside train/ and validation/
- put the cat pictures index 0-999 in data/train/cats
@pklaus
pklaus / embedding_in_qt5.py
Last active March 24, 2023 07:56
Embedding Matplotlib Plots in PyQt5
#!/usr/bin/env python
# embedding_in_qt5.py --- Simple Qt4 application embedding matplotlib canvases
#
# Copyright (C) 2005 Florent Rougon
# 2006 Darren Dale
# with Updates from @boxcontrol
# <http://www.boxcontrol.net/embedding-matplotlib-plot-on-pyqt5-gui.html>
# <https://github.com/boxcontrol/matplotlibPyQt5>
#
@initbrain
initbrain / threadqueue_example.py
Created October 17, 2013 11:21
Python thread-safe queue example
#!/usr/bin/env python
from Queue import Queue
from threading import Thread
from urllib2 import urlopen
from re import compile, MULTILINE
from time import time
class ThreadUrl(Thread):
@miguelgrinberg
miguelgrinberg / rest-server.py
Last active March 29, 2024 09:05
The code from my article on building RESTful web services with Python and the Flask microframework. See the article here: http://blog.miguelgrinberg.com/post/designing-a-restful-api-with-python-and-flask
#!flask/bin/python
from flask import Flask, jsonify, abort, request, make_response, url_for
from flask_httpauth import HTTPBasicAuth
app = Flask(__name__, static_url_path = "")
auth = HTTPBasicAuth()
@auth.get_password
def get_password(username):
if username == 'miguel':