attributeerror: module numpy has no attribute arrange

In this tutorial, we will explain the step-by-step solution to solve the attributeerror: module ‘numpy’ has no attribute ‘arrange’.

Before we proceed to the solutions to solve the error, we will know first: what is NumPy?

What is NumPy?

The NumPy (Numerical Python) is a Python library used for numerical computing.

NumPy provides a multidimensional array object along with functions to manipulate and perform mathematical operations on these arrays efficiently.

It also provides tools for working with arrays of data and integrates well with other libraries for data analysis and scientific computing in Python.

NumPy is widely used in the fields of scientific computing, data analysis, and machine learning.

What is an AttributeError?

In a Python program, an AttributeError is an exception that occurs if an object doesn’t have the exact attribute that is being called.

It occurs if an attribute reference or assignment fails.

It means that the attribute or method you’re trying to access or call doesn’t exist in the object you are working with.

For example, if you are trying to access an attribute of an object that doesn’t have a defined, or if you misspell the attribute name, you may get an AttributeError.

This can also occur when you are trying to call a method which is not defined for a specific object.

Furthermore, you can visit or read the other fixed python errors:

Why the module ‘numpy’ has no attribute ‘arrange’ error occur?

The module numpy has no attribute arrange error occurs when you are trying to use the NumPy function numpy.arrange(), yet the NumPy module cannot find the arrange() function.

In addition, the error occurs because of the typo error.

For example:

import numpy as np

# Create an array using the arange function
my_array = np.arrange(10)

# Print the array

In the example code, this is to assume to create a NumPy array with the numbers 0 through 9 using the numpy.arange() function.

However, there is a typo in the function name: numpy.arrange() instead of numpy.arange().

If you run the code above, the output will show the following error message:

C:\Users\Dell\PycharmProjects\pythonProject\venv\Scripts\python.exe C:\Users\Dell\PycharmProjects\pythonProject\
Traceback (most recent call last):
File “C:\Users\Dell\PycharmProjects\pythonProject\”, line 4, in
my_array = numpy.arrange(10)
File “C:\Users\Dell\PycharmProjects\pythonProject\venv\lib\site-packages\”, line 320, in getattr
raise AttributeError(“module {!r} has no attribute “
AttributeError: module ‘numpy’ has no attribute ‘arrange’

Error may occur due to multiple reasons

  • typo error in the function name
  • missing import statement
  • corrupted installation of the NumPy library

After we analyze the problem, the error will occur, and then in the section below, we will explain the solution to solve the error.

How to solve the attributeerror: module ‘numpy’ has no attribute ‘arrange’?

Here are the following solutions to solve the attributeerror: module ‘numpy’ has no attribute ‘arrange’.

Solution 1: Check the spelling of the function name

The solution for this error is very simple. Make sure that you have spelled the function name correctly.

Therefore to resolve this error you have to use the correct spelling which is np.arange() and not the np.arrange().

We will use the same example code in the previous example and then the error will be removed.

import numpy as np

# Create an array using the arange function
my_array = np.arange(10)

# Print the array

If you run the code it will create a NumPy array with the start numbers 0 through 9 using the numpy.arange() function.


C:\Users\Dell\PycharmProjects\pythonProject\venv\Scripts\python.exe C:\Users\Dell\PycharmProjects\pythonProject\
[0 1 2 3 4 5 6 7 8 9]

Solution 2: Import the NumPy library

Before you will used any function from the NumPy library, the first you need to do is import it. You can use this code to import the NumPy library:

import numpy as np

The code above will import the NumPy library and it will create an alias np for it, which is commonly used in Python code.

Solution 3: Check the version of NumPy

You will ensure that you have installed the NumPy library and its version is compatible with the arrange function. You can check the version of NumPy using the following code:

import numpy as np

If you run the code it will show you the version of your NumPy installed on your system

C:\Users\Dell\PycharmProjects\pythonProject\venv\Scripts\python.exe C:\Users\Dell\PycharmProjects\pythonProject\

If the version of the NumPy is incompatible, you can upgrade it using the following command:

pip install --upgrade numpy

Solution 4: Check the installation of NumPy

If the above solutions don’t solve the error issue, then there should be a problem with the installation of NumPy. You can uninstall and reinstall the NumPy library using the following commands:

pip uninstall numpy

pip install numpy


To conclude, most of the time the Python developer encountered an error, it was due to simple mistakes. You can see in this example that you are getting this attributeerror: module numpy has no attribute arrange due to the typo and incorrect import. 

For that, it is better that you double-check the method or function you are using before searching for it on the internet.

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