Am 24.03.2014 um 10:09 schrieb Vincent van Ravesteijn <v...@lyx.org>:
> I never liked that behavior but the consensus was to act this way. The > problem is also here the time. E.g. a users worked the last time with > LyX 2.0.2 then he did not use it for a year and uninstalled it. Now he > installs LyX 2.0.7 but will get the preferences from hos old 2.0.3. -> > error prone because e.g. Python might once have been on a network drive > which does no longer exists. > > If python moves without notification you have a problem even if LyX has not > been uninstalled... > > But again: why on earth would the python path be stored in the preferences > file? This file should contain only the changes done explicitly by the user. > If it contains something else, we have a bug. > > What exactly do you propose then ? Do you propose to have LyX determine the > Python location on run-time ? Would this mean to search the whole harddrive > for a python.exe ? Would you want to store the python path in the Windows > registry instead ? Would you want to hardcode this into configure.py to look > for "../Python/python.exe" explicitly ? These questions are best answered by a Windows developer. Obviously, the python executable has to be found at run-time. Unix-like systems have a PATH variable for that. There is no alternate lookup mechanism, IMO. Windows have a PATH variable too. But I don't know what happens on installation of the python package. Perhaps it's common practice to extend the PATH variable or it's written to the registry. I don't know. In case of the bundled python it should be easy. The LyX binary directory is added to PATH by LyX at run-time. The python executable can be placed there too. > From what you say, I suspect that you installer modifies the preferences > file. Is this the case? It would be terribly wrong. > > Isn't that where we have lyxrc.dist for ? So, it might not be as terribly > wrong in general (I'm not talking about the path specifically). No, lyxrc.dist contains the defaults for the given platform. It's not meant to be modified by the installer, IMHO. BTW, the value of path_prefix on Mac contains many hard-coded directories. This is not really necessary. This has to be fixed, too. Stephan > > > JMarc > > Vincent > > >
