Valueerror: X And Y Must Be The Same Size In Matplotlib

If I want to make a scatter plot with matplotlib like this: import matplotlib as plt x = [float(1) for x in xrange(2)] y = [float(2) for x in xrange(2)] plt.scatter(x,y) plt.show()

Solution 1:

You are overwriting x when assigning y

x = [float(1) for x in xrange(2)] # x = [1, 1]
y = [float(2) for x in xrange(2)] # x = 1; y = [2, 2]
                  ^

Instead of using x use _ (the "don't care variable in python" as suggested by @kroolik)

x = [float(1) for _ in xrange(2)]
y = [float(2) for _ in xrange(2)]