The most common question I get from students in my Python classes is: How can we practice and improve our skills after the course is over? These students realize that no matter how good a course might be, they won’t retain very much if they don’t use and practice their ...
Python’s “subprocess” module makes it really easy to invoke an external program and grab its output. For example, you can say import subprocess print(subprocess.check_output('ls')) and the output is then $ ./blog.py b'blog.py\nblog.py~\ndictslice.py\ndictslice.py~\nhexnums.txt\nnums.txt\npeanut-butter.jpg\nregexp\nshowfile.py\nsieve.py\ntest.py\ntestintern.py\n' subprocess.check_output returns a bytestring with the filenames on my desktop. To deal with them in a more serious ...
One of Python’s mantras is “batteries included.” which means that even with a bare-bones installation, you can do quite a bit. You can (and should) install packages from PyPI, but many day-to-day tasks can be accomplished with just the built-in data structures, functions, and methods. What I’ve discovered over the ...
Today is my birthday! To celebrate, I’m offering a one-day 47% sale on many of my products: My upcoming live classes (on functional Python, advanced Python objects, and decorators) are all 47% off Practice Makes Python (developer package), with 50 exercises to help you improve your Python, is 47% off ...
If you’re like many of the Python developers I know, the basics are easy for you: Strings, lists, tuples, dictionaries, functions, and even objects roll off of your fingers and onto your keyboard. Your day-to-day tasks have become significantly easier as a result of Python, and you’re comfortable using it ...
Whenever I teach Python courses, most of my students are using Windows. And thus, when it comes time to do an exercise, I inevitably end up with someone who does the following: for one_line in open('c:\abc\def\ghi'): print(one_line) The above code looks like it should work. But it almost certainly doesn’t. ...