Exception: pyqtgraph requires Qt version ＞= 5.12 (your version is 5.9.5)

function pyqt5 The program times this error

Traceback (most recent call last):
  File "main_das.py", line 23, in <module>
    import pyqtgraph as pg
  File "/usr/local/lib/python3.7/dist-packages/pyqtgraph/__init__.py", line 17, in <module>
    from .colors import palette
  File "/usr/local/lib/python3.7/dist-packages/pyqtgraph/colors/palette.py", line 1, in <module>
    from ..Qt import QtGui
  File "/usr/local/lib/python3.7/dist-packages/pyqtgraph/Qt/__init__.py", line 402, in <module>
    raise Exception('pyqtgraph requires Qt version >= %d.%d  (your version is %s)' % (versionReq[0], versionReq[1], QtVersion))
Exception: pyqtgraph requires Qt version >= 5.12  (your version is 5.9.5)

reason

The use of pyqt5 The version is 5.15.6, and pyqtgraph The version is 0.12.4, Version mismatch caused by

Solution

sudo pip3 install pyqtgraph==0.11.1