Matplotlib-Bar-Code #python Matplotlib library #pip install matplotlib #as alias key import matplotlib.pyplot as plt #pip install numpy import numpy as np #x value x = np.array ( ['Bike', 'Car', 'Bus' ...

Bug summary Once I type " import matplotlib.pyplot as plt" and run it, jupyter always returns： ＂Matplotlib is building the font cache; this may take a moment.＂ ＃Then the return messages will end up as ...