Install LabelImg Annotation tool in Windows

Any reason you want to build the project rather than just download prebuilt binaries? If not, don't follow the instructions under 'Build from source' but follow the link under 'Download prebuilt binaries'

You have to open the environmental variable on your computer and check if pyrcc5 or pyrcc4 file is present in the scripts folder. If not then to install the dev tools for PyQt5 use "pip install pyqt5-dev-tools" in case of PyQt5. Then open the python path and see if pyrcc5 files must be in the scripts folder now.

Now use following commands

pyrcc5 -o resources.py resources.qrc

python labelImg.py

labelImg should be working by now.