I install matplotlib but python 3.8.10 show me this error.
AttributeError: module 'matplotlib' has no attribute 'font_manager'
import sys
sys.path.append(r'C:\Python38\Lib\site-packages')
sys.path.append(r'C:\Python38\Lib\site-packages\matplotlib')
import matplotlib
system_fonts = matplotlib.font_manager.findSystemFonts(fontpaths=None, fontext='ttf')
print(dir(system_fonts))