gnuradio-companion 中的分段错误（核心转储）
当在 gnuradio-companion 中添加 QTGUI-sink 模块时，gr 只是崩溃并出现以下错误：
segmentation fault (core dumped)
在这个错误之上，我注意到一些警告
Warning: restarting the docstring loader (crashed while loading 'qtgui_bercurve_sink')
Warning: restarting the docstring loader (crashed while loading 'qtgui_const_sink_x')
Warning: restarting the docstring loader (crashed while loading 'qtgui_edit_box_msg')
Warning: restarting the docstring loader (crashed while loading 'qtgui_freq_sink_x')
Warning: restarting the docstring loader (crashed while loading 'qtgui_histogram_sink_x')
Warning: docstring loader crashed too often
所以我导入了 Qtgui，但没问题。
>>> from PyQt5 import QtGui
环境： 操作系统：Ubuntu LTS 20.04
python：python3.8
GnuRadio：Gnuradio3.8.5
gcc：9.3.0
when add a QTGUI-sink module in gnuradio-companion , gr just crashed with the following error:
segmentation fault (core dumped)
above this error, I noticed some warnings
Warning: restarting the docstring loader (crashed while loading 'qtgui_bercurve_sink')
Warning: restarting the docstring loader (crashed while loading 'qtgui_const_sink_x')
Warning: restarting the docstring loader (crashed while loading 'qtgui_edit_box_msg')
Warning: restarting the docstring loader (crashed while loading 'qtgui_freq_sink_x')
Warning: restarting the docstring loader (crashed while loading 'qtgui_histogram_sink_x')
Warning: docstring loader crashed too often
So I import Qtgui, but it was ok.
>>> from PyQt5 import QtGui
env:
os: Ubuntu LTS 20.04
python: python3.8
GnuRadio: Gnuradio3.8.5
gcc:9.3.0
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