If someone is still having that problem and reinstalling backports.functools_lru_cache do not work in his case, as it was in my case, then probably installing older version of matplotlib would work. For example: pip install matplotlib==2.0.2 Problem occurred for version 2.2.0, I switched to 2.0.2 and it is working now. I did not check other … Read more
There is now Retrolambda for converting Java 8 bytecode, which uses lambda expressions and method references, to work on Java 7, 6 or 5. (Java 1.4 gave verify errors; did not investigate further.)
Basically you need to “merge backwards” – apply a diff between the current and previous version to the current version (so you end up with a working copy looking like the old version) and then commit again. So for example to go from revision 150 (current) back to revision 140: svn update svn merge -r … Read more