Question

我尝试运行使用matplotlib的python脚本。我遇到以下错误：

Traceback (most recent call last):
  File "q3.py", line 6, in <module>
    matplotlib.use('TkAgg')
  File "/home/raj/raj/venvs/notes-bash-venv/lib/python3.8/site-packages/matplotlib/__init__.py", line 1162, in use
    plt.switch_backend(name)
  File "/home/raj/raj/venvs/notes-bash-venv/lib/python3.8/site-packages/matplotlib/pyplot.py", line 276, in switch_backend
    class backend_mod(matplotlib.backend_bases._Backend):
  File "/home/raj/raj/venvs/notes-bash-venv/lib/python3.8/site-packages/matplotlib/pyplot.py", line 277, in backend_mod
    locals().update(vars(importlib.import_module(backend_name)))
  File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 783, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/raj/raj/venvs/notes-bash-venv/lib/python3.8/site-packages/matplotlib/backends/backend_tkagg.py", line 1, in <module>
    from . import _backend_tk
  File "/home/raj/raj/venvs/notes-bash-venv/lib/python3.8/site-packages/matplotlib/backends/_backend_tk.py", line 6, in <module>
    import tkinter as tk
ModuleNotFoundError: No module named 'tkinter'

所以我尝试安装tkinter：

$ pip3 install tkinter
ERROR: Could not find a version that satisfies the requirement tkinter (from versions: none)
ERROR: No matching distribution found for tkinter

错在哪？对于同一脚本，我使用pip3 install numpy之类的命令安装了numpy，pandas和matplotlib。我在python 3.8.2和pip-20.2.3上。我也在WSL2上的Ubuntu 20.04上。

Answer 1

您是否尝试在系统范围内为Tkinter安装依赖项？

sudo apt-get install python3-tk

Answer 2

您可以通过在整个操作系统范围内使用以下命令来解决该问题：

sudo apt install python3-tk

检查一下，让我知道它是否有效。

如何解析python依赖版本

2 个答案: