1. Interakcja. ****************************************************************

% python
informacje na temat praw autorskich...
>>> "Hello World!"
'Hello World!'
>>>            # <Ctrl-D lub Ctrl-Z aby wyj>


2. Programy. ******************************************************************

% cat module1.py
print 'Hello module world!'

% python module1.py
Hello module world!


3. Moduy. ********************************************************************

% python
>>> import module1
Hello module world!
>>>


4. Skrypty. *******************************************************************

% cat module1.py
#!/usr/local/bin/python      (albo #!/usr/bin/env python)
print 'Hello module world!'

% chmod +x module1.py

% module1.py
Hello module world!


5. Bdy. *********************************************************************

% python
>>> 1 / 0
Traceback (innermost last):
  File "<stdin>", line 1, in ?
ZeroDivisionError: integer division or modulo
>>>
>>> x
Traceback (innermost last):
  File "<stdin>", line 1, in ?
NameError: x


6. Przerwanie dziaania. ******************************************************

% python
>>> L = [1, 2]
>>> L.append(L)

