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pip explanation
Pip is the installation package program of python, and pip can be understood as one of many packages in the python standard library.
However, pip is special in that it can manage other packages in the standard library .
In my opinion, pip can be used as a command program to install various packages in the python standard library.
Use of pip
If you want to install a certain package of python, just open cmd and enter it pip install +包名(
the rookie said it is really easy to use!)
Download of PyQt5
Open cmd, enter pip install PyQt5
and wait for the download to complete
Install PyQt5 tools
PyQt5.9 does not provide common Qt tools, such as graphical interface development tool Qt Designer, international translation tool Liguist, so common Qt tools need to be installed.
Open cmd and enter: pip install PyQt5-tools -i https://pypi.douban.com/simple
(Note, if pip has not been updated for a long time, it may cause the download to fail, such as me...)
pip-update
Open cmd and enter the following command
python -m pip install --upgrade pip
Configuration of environment variables
From the system, find this folder
and copy its directory path, then open the advanced system settings
and add the folder path just copied as a new path.
Check if the download was successful
Open cmd, enter: path, the system will pop up all your environment variables, you can find the PyQt5 tools you just added in it,
or directly open the python compiler, enter import PyQt5, and observe whether the compiler reports an error. If no error is reported, it means that the installation is successful
