[Python-Dev] Second draft: PEP397: Python launcher for Windows

[Michael Foord]

On 23/03/2011 14:52, Mike Driscoll wrote:
> On Tue, Mar 22, 2011 at 2:12 PM, Michael Foord
> <fuzzyman at voidspace.org.uk>  wrote:
>> On 22/03/2011 07:21, Mark Hammond wrote:
>>
>> Hi all,
>>    I've made some changes to the draft PEP and checked it into the PEP
>> repository as PEP397.  The reference implementation is currently being
>> tracked athttp://bugs.python.org/issue11629.
>>
>>
>> Hey Mark,
>>
>> One way of supporting alternative implementations (that may not even have a
>> standard install directory) is allowing configuration. e.g. config.ini
>>
>>      [paths]
>>      ironpython = c:\Program Files\IronPython 2.7\ipy.exe
>>      ironpython2.7 = c:\Program Files\IronPython 2.7\ipy.exe
>>      jython = c:\Users\foobar\jython2.5\jython.exe
>>
>> Pythons specified in this way should be recognised in the shebang line using
>> any of the formats:
>>
>>      #! ironpython
>>      #! /usr/bin/ironpython
>>      #! /usr/bin/env ironpython
>>
>> This would also permit alternative install locations. (And it would be nice
>> if the launcher could use the config file to *automatically* do the right
>> thing for the 'w' variants.)
>>
>> All the best,
>>
>> Michael
>>
> The main problem I can think of for the config file is that those hard
> coded paths probably won't work about 10% of the time. I install my
> Python stuff in a different location then the C drive, for example.

The whole point of a config file is that you put the paths in there 
yourself...

To be honest I would be happy with registry entries instead as the 
alternative implementations can then add to their installers (or provide 
a script) to add the right registry entry.

Michael

> - Mike


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