Only Size-1 Arrays Can Be Converted To Python Scalars

The error called only length-1 arrays can be converted to Python scalars is araised while the function requires a single value instead if you give an array. You can jump the definition of f(x) also simply pass np.int into the vectorize the function: f2 = np.

 

Hey Anthony,

TypeError occurs when you pass an array instead of passing a single value in the function or when you are working on NumPy and matplotlib.pyplot.
For example:

import numpy

import matplotlib.pyplot

def function(x):

  return numpy.int(x)

x = numpy.arange(1, 15.1, 0.1)

matplotlib.pyplot.plot(x, myfunction(x))

matplotlib.pyplot.show()

Output:

Traceback (most recent call last):

  File "error-1.py", line 13, in <module>

    matplotlib.pyplot.plot(x, myfunction(x))

  File "error-1.py", line 7, in myfunction

    return numpy.int(x)

TypeError: only size-1 arrays can be converted to Python scalars

To fix this, add the code and it returns vector results.

myfunction2= numpy.vectorize(myfunction)