Python Programming for Raspberry Pi, Sams Teach Yourself in 24 Hours

def perimeter(*args): sides = len(args) print('There are', sides, 'sides to the object') total = 0 for i in range(0, sides): tot ...

def func5(**kwargs): When you place the two asterisks in front of the kwargs variable, it becomes a dictionary variable. When yo ...

global variables in your Python scripts. Local Variables Local variables are variables that you create inside a function. Becaus ...

LISTING 12.8 Global Variables Causing Problems Click here to view code image #!/usr/bin/python3 width = 10 height = 60 total = 0 ...

area5() print('Outside the function the total is:', total) Adding the one global statement causes the code to run correctly now, ...

pi@raspberrypi ~$ python3 script1210.py The list before the function call: ['Rich', 'Christine'] The list after the function cal ...

The factorial() function first checks whether the parameter value is 0. If it is, it returns the default definition value of 1. ...

3. You must define a function before you can use it in your Python script. True or false? Answers 1. b. Parameters. The paramete ...

Hour 13. Working with Modules What You’ll Learn in This Hour: What a module is Standard Python modules What a module contains Ho ...

Click here to view code image >>> import sys >>> sys.builtin_module_names ('__main__', '_ast', '_bisect', '_co ...

up into small code chunks is easy to track and manage. Large scripts can be unwieldy and difficult to debug. Small scripts that ...

DLFCN base64 importlib shutil IN bdb inspect signal RPi binascii io site TYPES binhex itertools sitecustomize ... Enter any modu ...

... You can see that lots of information is provided by the help function, although it is a little cryptic for those new to Pyth ...

Print a year's calendar. (END) >>> Listing 13.6 shows a quick description of the prcal function and the arguments it ac ...

system. If you do not have the LXDE graphical interface started automatically at boot, start it now by typing startx and pressi ...

Press Ctrl+D to exit the Python interactive shell. If you want to power down your Raspberry Pi now, type sudo poweroff and pres ...

name must be ni.py. You could put the two functions, dbl() and addem() into a module called arith, which is short for arithmetic ...

2: >>> os.getcwd() 3: '/home/pi' 4: >>> import arith 5: Traceback (most recent call last): 6: File "<stdin& ...

where the standard Python library modules’ .py files, are located for this Python version. You looked at this directory back in ...

In Listing 13.11, once the directory is created, cd is used to change the present working directory to the location of the teste ...