On 3/20/2014 3:07 PM, John Gordon wrote:
There are two ways (at least!) to run a python script:
1. Execute the python interpreter manually, supplying the python script name
as an arugment, like so:
python myscript.py
python2 otherscript.py
python3 yetanotherscript.py
This lets you choose on-the-fly which version of python is being used to
interpret the script.
2. Execute the python script directly by just typing its name, like so:
myscript.py
./otherscript.py
/other/directory/yetanotherscript.py
Depending on your operating system, this may require:
a. Permissions on the script file be set to allow execution;
b. A 'shebang' entry as the first line in the file which specifies the
program that shall be executed;
c. An association between '.py' and some version of python.
3. Use the python launcher py.exe with version selection.
py -2 myscript.py
py -3 myscript.py
As far as I know, this is only for Windows at present.
--
Terry Jan Reedy
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