OSError: [Errno 18] Invalid cross-device link
os.rename only works if source and destination are on the same file system. You should use shutil.move instead.
backend
How to change backends in matplotlib / Python
Six years later and I came across a similar issue, when trying to decide which backend was available to use. Note see Caveats – below This code snippet works well for me: import matplotlib gui_env = [‘TKAgg’,’GTKAgg’,’Qt4Agg’,’WXAgg’] for gui in gui_env: try: print(“testing”, gui) matplotlib.use(gui,warn=False, force=True) from matplotlib import pyplot as plt break except: continue … Read more
.filter() vs .get() for single object? (Django)
get() is provided specifically for this case. Use it. Option 2 is almost precisely how the get() method is actually implemented in Django, so there should be no “performance” difference (and the fact that you’re thinking about it indicates you’re violating one of the cardinal rules of programming, namely trying to optimize code before it’s … Read more