By John Goerzen, Brandon Rhodes
Foundations of Python community Programming, 3rd variation, covers the entire vintage issues present in the second one version of this publication, together with community protocols, community info and blunders, e-mail, server structure, and HTTP and internet functions, plus updates for Python 3.
Some of the hot subject matters during this version include:
• wide assurance of the up to date SSL aid in Python 3
• the right way to write your personal asynchronous I/O loop.
• an summary of the "asyncio" framework that incorporates Python 3.4.
• How the Flask internet framework connects URLs in your Python code.
• How cross-site scripting and cross-site request forgery can be utilized to assault your website, and the way to guard opposed to them.
• How a full-stack net framework like Django can automate the around journey out of your database to the reveal and back.
If you're a Python programmer who wishes a deep realizing of ways to take advantage of Python for network-related projects and purposes, this is often the e-book for you. From internet software builders, to structures integrators, to process administrators—this ebook has every thing it's essential to understand.
Read Online or Download Foundations of Python Network Programming (3rd Edition) PDF
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Extra info for Foundations of Python Network Programming (3rd Edition)
Next, we need to consider whether, by allowing zero values for dates, we are also making our x axis substantially longer (my count query yielded 1211 rows, but there are a total of 1822 days in the range specified, which is 1998-2002). Maybe showing zero count days might not work; if the graph is so crowded, we cannot see the gaps anyway. To compare, we can quickly run the same data into Google Spreadsheets (you can do this in Excel or D3 too), but this time, we will only select our count column to build the graph, thereby forcing Google Spreadsheets to not show dates on the x axis.
Yet, there are still some options that can differentiate one delimited format from another. The first differentiator is how each instance of the data (each row) is separated. Usually at the end of a line, a new line, or a carriage return, or both are used depending on the operating environment in use during the creation of the file. Seeing invisible characters In the preceding example, the new line or carriage return is invisible. How do you see the invisible characters? We will read the same file in Text Wrangler on a Mac (similar full-featured editors such as Notepad++ are available for Windows), where we can use the Show invisibles option (located by navigating to View | Text Display).
Type conversion at the SQL level Here, we will walk through a few common cases when SQL can be used to manipulate data types. Example one – parsing MySQL date into a formatted string For this example, we will return to the Enron e-mail dataset we used in Chapter 1, Why Do You Need Clean Data?. As with the previous example, we are going to look in the message table, where we have been using the date column, which is stored as a datetime MySQL data type. Suppose we want to print a full date with spelled-out months (as opposed to numbers) and even the day of the week and time of day.
Foundations of Python Network Programming (3rd Edition) by John Goerzen, Brandon Rhodes