IndexError: too many indices for array

IndexError: too many indices for array

$ python -c "import numpy as np, matplotlib.pyplot as plt; a=np.array([1,2,3]); a[0,0]"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
IndexError: too many indices for array

Why this happens

The array has fewer dimensions than your index implies.

Fix

Match indexing to the array’s shape.

Wrong code

import numpy as np
import matplotlib.pyplot as plt
a = np.array([1,2,3])
a[0,0]

Fixed code

import numpy as np
a = np.array([1,2,3])
a[0]