在centos7上安裝anaconda5.2.0的版本後，要啟動spyder，但是出現錯誤，啟動失敗：
(base) [dlou@ks0512anaconda01 ~]$ spyder
traceback (most recent call last):
file "/home/dlou/anaconda3/lib/python3.6/site-packages/qtpy/qtwebenginewidgets.py", line 22, in
from pyqt5.qtwebenginewidgets import qwebenginepage
importerror: libxss.so.1: cannot open shared object file: no such file or directory
during handling of the above exception, another exception occurred:
處理方法：
pyqt5-5.12.1-5.12.2-cp35.cp36.cp37.cp38-abi3-manylinux1_x86_64.whl
pyqtwebengine-5.12.1-5.12.9-cp35.cp36.cp37.cp38-abi3-manylinux1_x86_64.whl
pyqt5_sip-4.19.19-cp36-cp36m-manylinux1_x86_64.whl
依次安裝：
(base) [dlou@ks0512anaconda01 downloads]$ pip install pyqt5_sip-4.19.19-cp36-cp36m-manylinux1_x86_64.whl
processing ./pyqt5_sip-4.19.19-cp36-cp36m-manylinux1_x86_64.whl
distributed 1.21.8 requires msgpack, which is not installed.
installing collected packages: pyqt5-sip
successfully installed pyqt5-sip-4.19.19
(base) [dlou@ks0512anaconda01 downloads]$ pip install pyqt5-5.12.1-5.12.2-cp35.cp36.cp37.cp38-abi3-manylinux1_x86_64.whl
processing ./pyqt5-5.12.1-5.12.2-cp35.cp36.cp37.cp38-abi3-manylinux1_x86_64.whl
requirement already satisfied: pyqt5_sip<4.20,>=4.19.14 in /home/dlou/anaconda3/lib/python3.6/site-packages (from pyqt5==5.12.1) (4.19.19)
distributed 1.21.8 requires msgpack, which is not installed.
installing collected packages: pyqt5
successfully installed pyqt5-5.12.1
(base) [dlou@ks0512anaconda01 downloads]$ pip install pyqtwebengine-5.12.1-5.12.9-cp35.cp36.cp37.cp38-abi3-manylinux1_x86_64.whl
processing ./pyqtwebengine-5.12.1-5.12.9-cp35.cp36.cp37.cp38-abi3-manylinux1_x86_64.whl
requirement already satisfied: pyqt5>=5.12 in /home/dlou/anaconda3/lib/python3.6/site-packages (from pyqtwebengine==5.12.1) (5.12.1)
requirement already satisfied: pyqt5_sip<4.20,>=4.19.14 in /home/dlou/anaconda3/lib/python3.6/site-packages (from pyqt5>=5.12->pyqtwebengine==5.12.1) (4.19.19)
distributed 1.21.8 requires msgpack, which is not installed.
installing collected packages: pyqtwebengine
successfully installed pyqtwebengine-5.12.1
雖然有錯誤提示，執行spyder，可以正常啟動。
今天重新安裝了最新的anaconda，非常順利，安裝包也略有更換。
anaconda3-2020.07-linux-x86_64.sh
pyqt5_sip-4.19.19-cp38-cp38-manylinux1_x86_64.whl
pyqt5-5.12.1-5.12.2-cp35.cp36.cp37.cp38-abi3-manylinux1_x86_64.whl
pyqtwebengine-5.12.1-5.12.9-cp35.cp36.cp37.cp38-abi3-manylinux1_x86_64.whl
安裝log如下：
(base) [dlou@ks0512anaconda01 downloads]$
(base) [dlou@ks0512anaconda01 downloads]$ pip install pyqtwebengine-5.12.1-5.12.9-cp35.cp36.cp37.cp38-abi3-manylinux1_x86_64.whl
processing ./pyqtwebengine-5.12.1-5.12.9-cp35.cp36.cp37.cp38-abi3-manylinux1_x86_64.whl
requirement already satisfied: pyqt5>=5.12 in /home/dlou/anaconda3/lib/python3.8/site-packages (from pyqtwebengine==5.12.1) (5.12.1)
requirement already satisfied: pyqt5_sip<4.20,>=4.19.14 in /home/dlou/anaconda3/lib/python3.8/site-packages (from pyqt5>=5.12->pyqtwebengine==5.12.1) (4.19.19)
installing collected packages: pyqtwebengine
successfully installed pyqtwebengine-5.12.1
(base) [dlou@ks0512anaconda01 downloads]$ spyder
spyder啟動正常。
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