Alan McKinnon <alan.mckinnon <at> gmail.com> writes:
> > # eselect python list > > [2] python3.4 * > You are being especially obtuse this time. Ate too many chocolate easter > eggs this weekend? That's the nicest way somebody has ever call me a moron, pig-headed or just dense. sorry... > LOOK at the emerge output please (eselect python is a red herring), this > is what it says: > The following REQUIRED_USE flag constraints are unsatisfied: > exactly-one-of ( python_single_target_python3_4 > python_single_target_python3_5 ) > Clear as daylight. It says right there it needs PYTHON_SINGLE_TARGET to > be 1, and only 1, between 3.4 and 3.5. > You have it set as 2.7 per your emerge info. Not intentionally. > Do what Q says 1 reply higher up in this sub-thread and your problem > will go away. I got all of that. > Here's what's happening: > When the ebuild installs a python package, it needs to determine what > python you will use and what goes in the python script shebang. This is > what PYTHON*TARGET does - it's really just a USE flag and emerge uses > that USE flag to figure out which python version to install against. > The flag is defined like any other flag - globally in make.conf or > per-package in package.use. The ebuild can and should assist by setting > it's own variables about what it can work with, but all of that is > undone when you override the ebuild with your own USE. > There is no bug here, your USE is set wrong by default. > eselect python: This handy gadget is a different thing from the above. > It determines what gets run when you type the command "python", > "python2" or "python3", because you can have lots of them. eselect > python tells Gentoo what is the global default. It has NOTHING to do > with installs. Actually, I did not know this, seriously. I thought that setting eselect python, was the master way of setting *everything* to the version of python selected, including the relevant USE flags. I got it now. No worries. And yes I'm severely distracted with several other things. I'm only interested in a variety of video codes, to run on gentoo clusters as custom frameworks, benchmarking and testing. I'm just now bothering to learn python. Sorry for being so dense:: piss-poor assumption on my part. James
