On 10/5/2012 5:32 PM, Dennis Lee Bieber wrote:
On Fri, 05 Oct 2012 08:15:30 -0400, Edward Diener
<eldiener@tropicsoft.invalid> declaimed the following in
gmane.comp.python.general:
Windows installs of Python do not distinguish releases by Pythonx(.x)
but just install different versions of Python in different directories.
Really?
E:\Python27>dir
Volume in drive E is Data
Volume Serial Number is 2626-D991
Directory of E:\Python27
08/28/2012 05:32 PM <DIR> .
08/28/2012 05:32 PM <DIR> ..
08/28/2012 02:11 PM <DIR> DLLs
08/28/2012 05:43 PM <DIR> Doc
08/28/2012 02:11 PM <DIR> include
08/31/2012 04:58 PM <DIR> Lib
08/28/2012 02:11 PM <DIR> libs
08/28/2012 02:15 PM 108,255 matplotlib-wininst.log
08/28/2012 02:18 PM 4,169 MySQL-python-wininst.log
08/28/2012 02:15 PM 98,498 numpy-wininst.log
08/28/2012 02:20 PM 17,816 PIL-wininst.log
08/28/2012 03:29 PM 1,572 PyOpenGL-accelerate-wininst.log
08/28/2012 03:38 PM 3,009 pyserial-wininst.log
06/24/2011 12:38 PM 27,136 python.exe ****
06/24/2011 12:38 PM 27,136 python2.7.exe ****
06/24/2011 12:38 PM 27,136 python2.exe ****
08/28/2012 05:32 PM 90,943 PythonCard-wininst.log
06/24/2011 12:38 PM 27,136 pythonw.exe ****
06/24/2011 12:38 PM 27,136 pythonw2.7.exe ****
06/24/2011 12:38 PM 27,136 pythonw2.exe ****
That's, as you say, ActievState. The normal Python installer does not
create a python2.7.exe etc.
But of course I can create any links I want, so that's not really the
problem. The major difficulty is that prior to invoking either "python"
directly or a script with a normal Python file association, I want to be
able to specify which version of Python should be invoked as the default
without having to specifically invoke a partiocular version by typing
'python2.7 ...' or 'python3.3 ...' etc.
08/28/2012 02:15 PM 196,096 Removematplotlib.exe
08/28/2012 02:18 PM 196,096 RemoveMySQL-python.exe
08/28/2012 02:15 PM 196,096 Removenumpy.exe
08/28/2012 02:20 PM 196,096 RemovePIL.exe
08/28/2012 03:29 PM 196,096 RemovePyOpenGL-accelerate.exe
08/28/2012 03:38 PM 196,096 Removepyserial.exe
08/28/2012 05:32 PM 61,440 RemovePythonCard.exe
08/28/2012 02:20 PM 196,096 Removereportlab.exe
08/28/2012 02:19 PM 196,096 Removescipy.exe
08/28/2012 05:29 PM 196,096 RemoveWConio.exe
08/28/2012 02:20 PM 40,362 reportlab-wininst.log
08/28/2012 02:19 PM 159,420 scipy-wininst.log
08/28/2012 05:32 PM <DIR> Scripts
08/28/2012 02:11 PM <DIR> tcl
08/28/2012 02:11 PM <DIR> Tools
11/28/2007 04:32 PM 258,352 unicows.dll
06/24/2011 12:38 PM 49,664 w9xpopen.exe
08/28/2012 05:29 PM 891 WConio-wininst.log
28 File(s) 2,822,071 bytes
10 Dir(s) 148,557,684,736 bytes free
E:\Python27>
That's what was set up by a recent ActiveState installer (well,
recent for me -- I'd still been using 2.5 three months ago)
Yes, it IS in a version numbered directory, but there are copies of
the executable named as plain python, pythonX, and pythonX.Y
E:\Python27>cd %homepath%
E:\UserData\Wulfraed\My Documents>python
ActivePython 2.7.2.5 (ActiveState Software Inc.) based on
Python 2.7.2 (default, Jun 24 2011, 12:21:10) [MSC v.1500 32 bit
(Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
^Z
E:\UserData\Wulfraed\My Documents>python2.7
ActivePython 2.7.2.5 (ActiveState Software Inc.) based on
Python 2.7.2 (default, Jun 24 2011, 12:21:10) [MSC v.1500 32 bit
(Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
Granted, one would need to have each installation directory in the
PATH, ordered such that the preferred version would be found first when
using just "python".
There is much more than just the PATH needed to change to have a
different Python be the default. File associations also. I thnk there
are more things too, but I know it has always been difficult on Windows
to easily change which distribution is called when "python" is executed
or some Python file association is executed.
I welcome the new Python launcher for Windows mentioned but have not had
a chance to use it and see how it works yet. I will try it this weekend
and hopefully it will work well to solve the problem of having multiple
Python installations installed on Windows at the same time, and being
able to easily specify the one I want invoked.
--
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