On 20/03/2014 15:21, Marko Rauhamaa wrote:
notbob <not...@nothome.com>:
I've installed python 3.3 on my Slack box, which by default comes with
python 2.7. I know how to fire up the different IDLE environments, but
how do I differentiate between the scripts? IOW, up till now, I've
used .py on all my 2.7 files. How do I know not to run a .py in
python3 or visa versa? Or do I? What's the excepted convention for
differentiating between the two?
That's a bit of a sore spot.
On a linux box, the initial line of the script indicates the
interpreter:
#!/usr/bin/env python2
for Python 2.x
#!/usr/bin/env python3
for Python 3.x.
All tutorials will tell you to start it with
#!/usr/bin/env python
which will start python2 on all (?) existing linux distros, but is
expected to start python3 within the next decade.
Marko
The above is also true on windows via the 'Python launcher for windows'
see http://legacy.python.org/dev/peps/pep-0397/
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what you can do for our language.
Mark Lawrence
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