Now that we've written the code (or alternatively, downloaded it), let's take a look at how this package works. In a terminal window, set the current directory to the folder containing your
quantities package directory, and type
python to start the Python interpreter. Then, type the following:
>>> import quantities
If you haven't made any mistakes in typing in the source code, the interpreter should come back without any errors. If you have made any typos, you'll need to fix them before you can proceed.
If you are in the United States, feel free to replace the value
us so that you get localized spelling and units for your country.
Let's create a simple quantity, and then ask the Python interpreter to display it:
>>> q = quantities.new(24, "km") >>>> print(q) 24 kilometre
As you can...