I'm having the exact same problem, with Python 3.7. I found this comment on stackoverflow by me, describing the earlier problem: I don't remember if it was the same _tkagg error.

I recall that, in April, I initially installed python 3.8, but uninstalled it because I couldn't get seaborn to work. So some Cygwin update released in May or June is causing this error again.

I definitely also ran Cygwin's auto-update sometime in May, before running my program successfully. I did, however, run Cygwin's auto-update several times since then. I didn't use Python for anything else since the last time I ran my program. Return _bootstrap._gcd_import(name, package, level)įile '/usr/lib/python3.7/site-packages/matplotlib/backends/backend_tkagg.py', line 1, in įile '/usr/lib/python3.7/site-packages/matplotlib/backends/_backend_tk.py', line 22, in Plt.switch_backend(rcsetup._auto_backend_sentinel)įile '/usr/lib/python3.7/site-packages/matplotlib/pyplot.py', line 204, in switch_backendįile '/usr/lib/python3.7/site-packages/matplotlib/pyplot.py', line 221, in switch_backendīackend_mod = importlib.import_module(backend_name)įile '/usr/lib/python3.7/importlib/_init_.py', line 127, in import_module Type 'help', 'copyright', 'credits' or 'license' for more information.įile '/usr/lib/python3.7/site-packages/matplotlib/_init_.py', line 1302, in get_backendįile '/usr/lib/python3.7/site-packages/matplotlib/_init_.py', line 831, in _getitem_įile '/usr/lib/python3.7/site-packages/matplotlib/pyplot.py', line 2282, in įile '/usr/lib/python3.7/site-packages/matplotlib/_init_.py', line 832, in _getitem_ Reply to this email directly, view it on GitHub You are receiving this because you commented. > 9 from matplotlib.backends import _tkaggġ1 def blit(photoimage, aggimage, bbox=None, colormode=1): home/lharcke/.local/lib/python3.6/site-packages/matplotlib/backends/tkagg.py in () import tkagg # Paint image to Tk photo blitter extension.ĥ from. home/lharcke/.local/lib/python3.6/site-packages/matplotlib/backends/backend_tkagg.py in () 0 means only perform absolute imports.Ħ1 backend_mod = _import_(backend_name, globals(), locals(), home/lharcke/.local/lib/python3.6/site-packages/matplotlib/backends/_init_.py in pylab_setup(name)Ħ0 # imports. > 115 _backend_mod, new_figure_manager, draw_if_interactive, _show = pylab_setup() home/lharcke/.local/lib/python3.6/site-packages/matplotlib/pyplot.py in () RuntimeError Traceback (most recent call last)

Cygwin python 3 command