lxml和pyqt5安装方法

在使用labelimage时需要安装lxml和pyqt5
在Anaconda环境中用conda install命令安装lxml和pyqt5中出现如下问题

安装lxml和pyqt5都出现同样问题

Collecting package metadata (current_repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Collecting package metadata (repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.

PackagesNotFoundError: The following packages are not available from current channels:

安装lxml

pip install lxml

安装pyqt5

pip install pyqt5