ubuntu meld打不开

打开meld报错：

ImportError: /usr/lib/python3/dist-packages/cairo/_cairo.cpython-38-x86_64-linux-gnu.so:
undefined symbol: cairo_tee_surface_index

apt命令安装无效：sudo apt install python3-pip，换下面的python3就可以了：

sudo python3 -m pip install --upgrade --force-reinstall pip

pip3 install pycairo==1.16.1
Defaulting to user installation because normal site-packages is not writeable
Collecting pycairo==1.16.1
  Using cached pycairo-1.16.1.tar.gz (180 kB)
  Preparing metadata (setup.py) ... done
Building wheels for collected packages: pycairo
  Building wheel for pycairo (setup.py) ... done
  Created wheel for pycairo: filename=pycairo-1.16.1-cp38-cp38-linux_x86_64.whl size=261792 sha256=2ab224264126b6187ad3650e9569ae80167b1e9a55434099e1d8aa9396202d2a
  Stored in directory: /home/hui/.cache/pip/wheels/50/5d/8a/efa9d54397a56d11f8f4f690da6ee2b3015785074a5898d966
Successfully built pycairo
Installing collected packages: pycairo
Successfully installed pycairo-1.16.1