July 2015
Intermediate to advanced
256 pages
6h 28m
English
Content preview from Web Scraping with Python
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Appendix A. Python at a Glance
According to the Association for Computing Machinery, Python is the top teaching language in the United States, with it being more commonly taught in introductory programming classes than BASIC, Java, and even C. This section will cover the basics of installing, using, and running Python 3.x and Python programs.
Installation and “Hello, World!”
If you have OS X or almost any flavor of Linux, you likely already have Python installed. If in doubt, type the following into your command line:
$python--version
We will be using Python 3.x throughout this book. If you see that you have Python 2.x installed, you upgrade on Linux simply by calling apt-get:
$sudoapt-getinstallpython3
Note this might involve needing to execute your Python code by typing $python3 myScript.py into the command line, rather than $python myScript.py.
The OS X operating system, as of this writing, has Python 2.7 installed by default. To install Python 3.x, download an installer from the Python website. Again, if you are running both Python 2.x and Python 3.x simultaneously, you might need to explicitly call Python 3.x using $python3.
For Windows users without Python installed, there are precompiled installers available for download. Simply download, open, and install. You might also need to set the Windows system path to the directory in which you install Python in order to tell the operating system where it’s at, but the website and installers have fairly straightforward ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.