UserWarning: FigureCanvasagg ist nicht interaktiv und kann daher nicht angezeigt werden ⇐ Python

[Anonymous]

Ich versuche, eine Matplotlib zu zeigen. Ich bin mir dieser Frage bewusst und habe ihre Antworten ausprobiert, ist aber immer noch erfolglos. Die Standard -Betriebssystemverteilung ist Ubuntu 24.04 mit Python 3.12 als Standard.

Code: Select all

$ uv init test_py310 --python 3.10
Initialized project `test-py310` at `/home/user/test_py310`
$ cd test_py310/
$ uv add numpy matplotlib
Using CPython 3.10.16
Creating virtual [url=viewtopic.php?t=25360]environment[/url] at: .venv
Resolved 12 packages in 136ms
Prepared 1 package in 1.96s
Installed 11 packages in 43ms
+ contourpy==1.3.2
+ cycler==0.12.1
+ fonttools==4.57.0
+ kiwisolver==1.4.8
+ matplotlib==3.10.1
+ numpy==2.2.5
+ packaging==25.0
+ pillow==11.2.1
+ pyparsing==3.2.3
+ python-dateutil==2.9.0.post0
+ six==1.17.0
< /code>
Test_matplotlib.py:
import numpy as np
import matplotlib.pyplot as plt

x = np.linspace(0, 10, 100)
y = np.sin(x)
plt.plot(x, y, label='sin(x)', color='blue', linestyle='--')
plt.show()
< /code>
Fehler: < /p>
/home/user/Coding/test_py310/.venv/bin/python /home/user/test_py310/test_matplotlib,py
/home/user/test_py310/test_matplotlib,py:7: UserWarning: FigureCanvasAgg is non-interactive, and thus cannot be shown
plt.show()

Als nächstes habe ich versucht, PYQT5 wie diese Antwort zu installieren, aber immer noch Fehler aufgetreten.

Code: Select all

$ uv add pyqt5
Resolved 15 packages in 89ms
Installed 3 packages in 45ms
+ pyqt5==5.15.11
+ pyqt5-qt5==5.15.16
+ pyqt5-sip==12.17.0
< /code>
Ausführen des gleichen Python -Skripts < /p>
$ /home/user/test_py310/.venv/bin/python /home/user/test_py310/test_matplotlib,py
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl, xcb.

Aborted (core dumped)

Ändern importieren matplotlib.pyplot als PLT bis:

Code: Select all

import matplotlib
matplotlib.use('TkAgg')
import matplotlib.pyplot as plt
< /code>
gab diesen Fehler: < /p>
$ /home/user/test_py310/.venv/bin/python /home/user/test_py310/test_matplotlib,py
AttributeError: module '_tkinter' has no attribute '__file__'.  Did you mean: '__name__'?

The above exception was the direct cause of the following exception:

ImportError: failed to load tkinter functions

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "/home/user/test_py310/test_matplotlib,py", line 9, in 
plt.plot(x, y, label='sin(x)', color='blue', linestyle='--')
File "/home/user/test_py310/.venv/lib/python3.10/site-packages/matplotlib/pyplot.py", line 3827, in plot
return gca().plot(
File "/home/user/test_py310/.venv/lib/python3.10/site-packages/matplotlib/pyplot.py", line 2774, in gca
return gcf().gca()
File "/home/user/test_py310/.venv/lib/python3.10/site-packages/matplotlib/pyplot.py", line 1108, in gcf
return figure()
File "/home/user/test_py310/.venv/lib/python3.10/site-packages/matplotlib/pyplot.py", line 1042, in figure
manager = new_figure_manager(
File "/home/user/test_py310/.venv/lib/python3.10/site-packages/matplotlib/pyplot.py", line 551, in new_figure_manager
_warn_if_gui_out_of_main_thread()
File "/home/user/test_py310/.venv/lib/python3.10/site-packages/matplotlib/pyplot.py", line 528, in _warn_if_gui_out_of_main_thread
canvas_class = cast(type[FigureCanvasBase], _get_backend_mod().FigureCanvas)
File "/home/user/test_py310/.venv/lib/python3.10/site-packages/matplotlib/pyplot.py", line 369, in _get_backend_mod
switch_backend(rcParams._get("backend"))
File "/home/user/test_py310/.venv/lib/python3.10/site-packages/matplotlib/pyplot.py", line 425, in switch_backend
module = backend_registry.load_backend_module(newbackend)
File "/home/user/test_py310/.venv/lib/python3.10/site-packages/matplotlib/backends/registry.py", line 317, in load_backend_module
return importlib.import_module(module_name)
File "/home/user/.local/share/uv/python/cpython-3.10.16-linux-x86_64-gnu/lib/python3.10/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "", line 1050, in _gcd_import
File "", line 1027, in _find_and_load
File "", line 1006, in _find_and_load_unlocked
File "", line 688, in _load_unlocked
File "", line 883, in exec_module
File "", line 241, in _call_with_frames_removed
File "/home/user/test_py310/.venv/lib/python3.10/site-packages/matplotlib/backends/backend_tkagg.py", line 1, in 
from . import _backend_tk
File "/home/user/test_py310/.venv/lib/python3.10/site-packages/matplotlib/backends/_backend_tk.py", line 25, in 
from . import _tkagg
ImportError: initialization failed
< /code>
Verwendung < /p>
import matplotlib
matplotlib.use('Qt5Agg')
import matplotlib.pyplot as plt
< /code>
Angegeben < /p>
$ /home/user/test_py310/.venv/bin/python /home/user/test_py310/test_matplotlib,py
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized.  Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl, xcb.

Aborted (core dumped)

Ich habe auch PYQT5 entfernt und PYQT6 hinzugefügt und Matplotlib verwendet.

Code: Select all

$ /home/user/test_py310/.venv/bin/python /home/user/test_py310/test_matplotlib,py
Traceback (most recent call last):
File "/home/user/test_py310/test_matplotlib,py", line 4, in 
matplotlib.use('Qt6Agg')
File "/home/user/test_py310/.venv/lib/python3.10/site-packages/matplotlib/__init__.py", line 1265, in use
name = rcsetup.validate_backend(backend)
File "/home/user/test_py310/.venv/lib/python3.10/site-packages/matplotlib/rcsetup.py", line 278, in validate_backend
raise ValueError(msg)
ValueError: 'Qt6Agg' is not a valid value for backend; supported values are ['gtk3agg', 'gtk3cairo', 'gtk4agg', 'gtk4cairo', 'macosx', 'nbagg', 'notebook', 'qtagg', 'qtcairo', 'qt5agg', 'qt5cairo', 'tkagg', 'tkcairo', 'webagg', 'wx', 'wxagg', 'wxcairo', 'agg', 'cairo', 'pdf', 'pgf', 'ps', 'svg', 'template']

Was muss ich tun, um eine Matplotlib.Pyplot -Figur in einer virtuellen Umgebung zu zeichnen, die mit Python 3.10 installiert ist.>