With a command-line switch, you can see at a glance all the Python interpreters you’ve installed and then invoke a specific version, whether it’s 32-bit or 64-bit. Install the py launcher ...

plt.plot (x,y) plt.grid () The plt.plot () command calls Matplotlib to plot the x and y values, and the plt.grid () command creates a grid behind the plot so we can see the axes more clearly.