En Fri, 23 Mar 2007 04:25:52 -0300, sandeep patil <[EMAIL PROTECTED]>
escribió:
> i have install python on window xp os.
> C:/program files/python
>
> i have done print program it working but .py can't working
> help me to how i will execute this file this file where i will save
> it.
> path execution how .
> tell me about any envorment veriable in python to set before python
> editor run,it path. etc
You don't need to set any environment variable to run Python. (Perhaps
PYTHONPATH, but *only* if you put modules into non standard places)
>>>> import posix
>
> Traceback (most recent call last):
> File "<pyshell#4>", line 1, in <module>
> import posix
> ImportError: No module named posix
That's ok: there is no module named "posix" on Windows, it is only
available on Unix systems.
I've rearranged a bit your example. Write the following into a file named
test.py - use whatever editor you like (even notepad):
---begin file test.py---
def invert(table):
index = {}
for key in table:
value = table[key]
if not index.has_key(value):
index[value] = []
index[value].append(key)
return index
phonebook = {'sandeep':9325, 'amit':9822, 'anand':9890, 'titu': 9325}
print "Phonebook", phonebook
inverted_phonebook = invert(phonebook)
print "Inverted phonebook", inverted_phonebook
---end file test.py---
Then open a console window, change to the same directory where you saved
test.py, and execute:
python test.py
You should get:
Phonebook {'titu': 9325, 'amit': 9822, 'anand': 9890, 'sandeep': 9325}
Inverted phonebook {9890: ['anand'], 9325: ['titu', 'sandeep'], 9822:
['amit']}
There are plenty of tutorials about Python. A good book -among others- is
"Dive into Python"; you can buy the book, read it online, or even download
it from http://www.diveintopython.org/
--
Gabriel Genellina
--
http://mail.python.org/mailman/listinfo/python-list
