Python for Finance: Analyze Big Financial Data

Supports panning of the plot (like panning with a movie camera); i.e., moving the plot (including x an ...

Figure 14-3. Screenshot of HTML-based Bokeh plot with interactive elements ...

Figure 14-4. Screenshot of pandas/matplotlib-based plot with interactive elements Real-Time Plots The previous ...

format. Apart from the visualization aspect, how to read out data from such APIs is also of intere ...

With the server running in the background, let us implement the real-time data update routine: In [ 58 ]: import bo ...

appended to the existing DataFrame object. The x and y coordinates of the rendering object are updated and then ...

Figure 14-5. Screenshot of real-time Bokeh plot via Bokeh Server (exchange rate) Real-time stock price q ...

Chapter 6 provides an example based on the data source and API that we use in what follows. It is the s ...

Figure 14-6. Screenshot of real-time Bokeh plot via Bokeh Server (stock quotes) ...

Rapid Web Applications If the Python world were to be divided into continents, there might be, among others, ...

We will now dive into the example application called Tradechat for a traders’ chat room, which basically ...

import datetime as dt from sqlite3 import dbapi2 as sqlite3 from flask import Flask, request, session, g, redirect, ...

whenever the application context tears down — that is, roughly speaking, when the execution of the applicatio ...

register: @app.route(‘/login’, methods=[‘GET’, ‘POST’]) def login(): ”’ Logs in a user. ”’ error = None if reque ...

import os import datetime as dt from sqlite3 import dbapi2 as sqlite3 from flask import Flask, request, session, g, re ...

session[‘logged_in’] = True directly log in new user flash(‘You were sucessfully registered.’) app.config.update(di ...

Out[78]: ‘1, 2, 3’ In [ 79 ]: ‘{}, {}, {}’.format(*‘123’) Out[79]: ‘1, 2, 3’ Templating to generate HTML page ...

the text field for writing and posting comments These files have to be stored in templates, the default (sub) ...

Figure 14-7. Screenshot of “empty” home page of Tradechat Example 14-4 provides the templating code f ...

Figure 14-8. Screenshot of Tradechat registration page The templating code for the login page, as shown ...