Import numpy as np python ошибка

Python ругается, что не может найти нужный модуль

Ситуация: мы решили заняться бигдатой и обработать большой массив данных на Python. Чтобы было проще, мы используем уже готовые решения и находим нужный нам код в интернете, например такой:

import numpy as np
x = [2, 3, 4, 5, 6]
nums = np.array([2, 3, 4, 5, 6])
type(nums)
zeros = np.zeros((5, 4))
lin = np.linspace(1, 10, 20)

Копируем, вставляем в редактор кода и запускаем, чтобы разобраться, как что работает. Но вместо обработки данных Python выдаёт ошибку:

❌ModuleNotFoundError: No module named numpy

Странно, но этот код точно правильный: мы его взяли из блога разработчика и, по комментариям, у всех всё работает. Откуда тогда ошибка?

Что это значит: Python пытается подключить библиотеку, которую мы указали, но не может её найти у себя.

Когда встречается: когда библиотеки нет или мы неправильно написали её название.

Что делать с ошибкой ModuleNotFoundError: No module named

Самый простой способ исправить эту ошибку — установить библиотеку, которую мы хотим подключить в проект. Для установки Python-библиотек используют штатную команду pip или pip3, которая работает так: pip install <имя_библиотеки>. В нашем случае Python говорит, что он не может подключить библиотеку Numpy, поэтому пишем в командной строке такое:

pip install numpy

Это нужно написать не в командной строке Python, а в командной строке операционной системы. Тогда компьютер скачает эту библиотеку, установит, привяжет к Python и будет ругаться на строчку в коде import numpy.

Ещё бывает такое, что библиотека называется иначе, чем указано в команде pip install. Например, для работы с телеграм-ботами нужна библиотека telebot, а для её установки надо написать pip install pytelegrambotapi. Если попробовать подключить библиотеку с этим же названием, то тоже получим ошибку:

А иногда такая ошибка — это просто невнимательность: пропущенная буква в названии библиотеки или опечатка. Исправляем и работаем дальше.

A common error you may encounter when using Python is modulenotfounderror: no module named ‘numpy’. This error occurs when Python cannot detect the NumPy library in your current environment. This tutorial goes through the exact steps to troubleshoot this error for the Windows, Mac and Linux operating systems.

ModuleNotFoundError: no module named ‘numpy’

What is ModuleNotFoundError?

The ModuleNotFoundError occurs when the module you want to use is not present in your Python environment. There are several causes of the modulenotfounderror:

The module’s name is incorrect, in which case you have to check the name of the module you tried to import. Let’s try to import the re module with a double e to see what happens:

import ree

---------------------------------------------------------------------------
ModuleNotFoundError                       Traceback (most recent call last)
1 import ree

ModuleNotFoundError: No module named 'ree'

To solve this error, ensure the module name is correct. Let’s look at the revised code:

import re

print(re.__version__)

2.2.1

You may want to import a local module file, but the module is not in the same directory. Let’s look at an example package with a script and a local module to import. Let’s look at the following steps to perform from your terminal:

mkdir example_package

cd example_package

mkdir folder_1

cd folder_1

vi module.py

Note that we are using Vim to create the module.py file in this example. You can use your preferred file editor, such as Emacs or Atom. In module.py, we will import the re module and define a simple function that prints the re version:

import re

def print_re_version():

    print(re.__version__)

Close the module.py, then complete the following commands from your terminal:

cd ../

vi script.py

Inside script.py, we will try to import the module we created.

import module

if __name__ == '__main__':

    mod.print_re_version()

Let’s run python script.py from the terminal to see what happens:

Traceback (most recent call last):
  File "script.py", line 1, in <module>
    import module
ModuleNotFoundError: No module named 'module'

To solve this error, we need to point to the correct path to module.py, which is inside folder_1. Let’s look at the revised code:

import folder_1.module as mod

if __name__ == '__main__':

    mod.print_re_version()

When we run python script.py, we will get the following result:

2.2.1

Lastly, you can encounter the modulenotfounderror when you import a module that is not installed in your Python environment.

What is Numpy?

NumPy is the fundamental Python library for scientific computing. The library provides a multidimensional array object, the ndarray and routines and operations for manipulating multidimensional arrays. NumPy does not come installed automatically with Python. The easiest way to install NumPy is to use the package manager for Python called pip. The following installation instructions are for the major Python version 3.

How to Install Numpy on Windows Operating System

To install NumPy using pip on Windows, you need to download and install Python on your PC. Ensure you select the install launcher for all users and Add Python to PATH checkboxes. The latter ensures the interpreter is in the execution path. Pip is automatically installed on Windows for Python versions 2.7.9+ and 3.4+.

You can install pip on Windows by downloading the installation package, opening the command line and launching the installer. You can install pip via the CMD prompt by running the following command.

python get-pip.py

You may need to run the command prompt as administrator. Check whether the installation has been successful by typing.

pip --version

To install numpy with pip, run the following command from the command prompt.

pip3 install numpy

How to Install Numpy on Mac Operating System

Open a terminal by pressing command (⌘) + Space Bar to open the Spotlight search. Type in terminal and press enter.

To get pip, first ensure you have installed Python3:

python3 --version

Python 3.8.8

Download pip by running the following curl command:

curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py

The curl command allows you to specify a direct download link, and using the -o option sets the name of the downloaded file.

Install pip by running:

python3 get-pip.py

From the terminal, use the pip3 command to install numpy:

pip3 install numpy

How to Install Numpy on Linux Operating Systems

All major Linux distributions have Python installed by default. However, you will need to install pip. You can install pip from the terminal, but the installation instructions depend on the Linux distribution you are using. You will need root privileges to install pip and numpy. Open a terminal and use the commands relevant to your Linux distribution to install pip.

Installing pip for Ubuntu, Debian, and Linux Mint

sudo apt install python-pip3

Installing pip for CentOS 8 (and newer), Fedora, and Red Hat

sudo dnf install python-pip3

Installing pip for CentOS 6 and 7, and older versions of Red Hat

sudo yum install epel-release

sudo yum install python-pip3

Installing pip for Arch Linux and Manjaro

sudo pacman -S python-pip

Installing pip for OpenSUSE

sudo zypper python3-pip

Once you have installed pip, you can install numpy using:

pip3 install numpy

Check NumPy Version

Once you have successfully installed NumPy, you can use two methods to check the version of NumPy. First, you can use pip from your terminal:

pip show numpy

Name: numpy
Version: 1.18.5
Summary: NumPy is the fundamental package for array computing with Python.
Home-page: https://www.numpy.org
Author: Travis E. Oliphant et al.
Author-email: None
License: BSD
Location: /Users/Yusufu.Shehu/opt/anaconda3/lib/python3.8/site-packages
Requires: 
Required-by: tifffile, tensorflow, tensorboard, tables, statsmodels, seaborn, scipy, scikit-learn, scikit-image, PyWavelets, pyerfa, patsy, pandas, opt-einsum, numexpr, numba, mlxtend, mkl-random, mkl-fft, matplotlib, Keras, Keras-Preprocessing, Keras-Applications, imbalanced-learn, imageio, h5py, gym, gensim, Bottleneck, bokeh, bkcharts, astropy

Second, within your python program, you can import numpy and then reference the __version__ attribute:

import numpy as np

print(np.__version__)

1.18.5

Installing Numpy Using Anaconda

Anaconda is a distribution of Python and R for scientific computing and data science. Anaconda comes with numpy and other relevant Python libraries for data science and machine learning. You can install Anaconda by going to the installation instructions.

You can install numpy in your conda environment using the following command from your terminal or command prompt:

conda install -c anaconda numpy

Summary

Congratulations on reading to the end of this tutorial. The modulenotfounderror occurs if you misspell the module name, incorrectly point to the module path or do not have the module installed in your Python environment. If you do not have the module installed in your Python environment, you can use pip to install the package. However, you must ensure you have pip installed on your system. You can also install Anaconda on your system, which comes with numpy.

For further reading on installing data science and machine learning libraries, you can go to the articles:

• OpenCV: How to Solve Python ModuleNotFoundError: no module named ‘cv2’
• Requests: How to Solve Python ModuleNotFoundError: no module named ‘requests’
• Pandas: How to Solve Python ModuleNotFoundError: no module named ‘pandas’
• Matplotlib: How to Solve Python ModuleNotFoundError: no module named ‘matplotlib’
• Flask: How to Solve Python ModuleNotFoundError: no module named ‘flask’

For further reading on using numpy arrays go to the article: How-to Guide for Python NumPy Where Function.

Go to the online courses page on Python to learn more about Python for data science and machine learning.

Have fun and happy researching!

In this Python NumPy tutorial, we will learn how to fix the python NumPy not found error. Also, we will cover these topics.

• Python Numpy Not Found
• Ubuntu Python Numpy Not Found
• Anaconda Python Numpy Not Found
• Vscode Python Numpy Not found
• Python Numpy dll Not Found
• Python Numpy Include Path-Not Found
• Python Import Numpy Not Working
• Python Numpy Transpose Not Working

Sometimes, the error looks like below:

In this section, we will learn to fix the error Python NumPy not found or no module named ‘numpy’.

• Python numpy not found or no module named ‘numpy’ error appears when the module is not installed in the current working environment.
• Install the module using pip or conda to fix this issue. but make sure that you have installed it in current working environment.

# installation using pip
pip install numpy

# installation using conda
conda install numpy

• You can install the numpy module even while working on jupyter notebook. Use the below syntax on the jupyter notebook and run it before importing numpy module.

!pip install numpy

# or

!conda install numpy

In the below implementation, when we tried to access the numpy module import numpy it threw an error No module named ‘numpy’. Then we have installed the module using pip now it didn’t thew any error.

Read Check if NumPy Array is Empty in Python

Ubuntu Python Numpy Not Found

In this section, we will learn how to fix the error python numpy not found in the Ubuntu operating system.

• Ubuntu is a linux based operating system that has different filesystem then windows operating system.
• But using pip or conda we can bridge this difference and can use numpy independently on any operating system ( Linux, Windows, macOS).
• Using apt package manager in Ubuntu machine we can install numpy. Here is the command to do so.

sudo apt install python3-numpy

• Please note that this command will install numpy on the system that can be accessed bydefault. but it won’t work if you have created a new envirnoment. Either deactivate the environment or install numpy on that environment to access numpy.
• In the below demonstration, we have installed numpy on the system. Then we have created a virtual environment to check if it is working over there as well. It do not work on the new virtual environment.

Read Python NumPy zeros

Anaconda Python Numpy Not Found

In this section, we will learn how to fix the python NumPy not found error in anaconda.

• Anaconda is a package management and deployement software dedicated specially for data science modules.
• The data science packages offered by anaconda are compatible on Linux, Macintosh (macOS) and windows operating system.
• Basic packages like jupyter notebbok, pandas, numpy, matplotlib, etc are already available when anaconda installed on the system.
• If you don’t want these pre-installed packages then either you can remove them or go for miniconda3 which is lighter version of anaconda and it has no packages pre-installed.
• In our example, we have demonstrated how to fix anaconda python numpy not found error or No module named ‘numpy’. Incase you already have numpy installed and is not working then reinstall it.
• Here is the code to uninstall the numpy module from anaconda package manager.

conda remove numpy

• Here is the code to install numpy module in anaconda package manager.

conda install numpy

Here is the demonstration of uninstallation and installation of numpy on anaconda in python.

Read Python NumPy arange

Vscode Python Numpy Not found

In this section, we will learn how to fix the Python NumPy not found error in vscode.

• Python Numpy not found or no module found ‘numpy’ error in vscode can be fixed by install the numpy module extension in vscode.
• We can also use pip or conda package managers to fix this issue. In case you have installed the module still same error is appearing that means have to activate the dedicated environment.
• Use the below code to install python numpy on vscode. In case you have already installed it but unable to access it then skip to next point.

pip install numpy

• In vscode, most of the time we forget to keep check on the environment we are working on. There are multiple environments present on the vscode like virtual environment (self created), conda base environment, conda other environments (if any), global environment, etc.
• You may have installed the numpy module on the global module but now you are working on vritual environment created by you.
• Apart from this, keep a check of python interpreter installed in your system. Make sure you have selected the same interpreter that you have used while installing numpy.
• There were the major reasons for Vscode Python Numpy Not found.

Read Python Numpy Factorial

Python Numpy dll Not Found

In this section, we will learn how to fix the python numpy dll not found error.

ImportError: DLL load failed while importing path: The specified module could not be found.

or

ImportError: DLL load failed: The specified module could not be found.

• DLL is dynamic link library which is used by more than one program on the windows computer.
• Python numpy dll not found error can be resolved by reinstalling the numpy on the computer/environment.
• In case issue is still not resolved then download Visual C++ Redistributable for Visual Studio 2015.
• Once you have installed it restart your computer and try to run the program again.
• In case issue still persist, please leave the exact error message in the comment section of this blog.

Read Python NumPy Delete

Python Numpy Include Path-Not Found

In this section, we will learn how to fix python numpy include path-not-found error. This section will also cover Python Checking for Numpy – Not Found.

• All the modules installed must go inside the site-packages folder in all the operating systems for the smooth running of that module.
• In case while installing numpy manually you have not placed the module inside the site-package folder in windows machine and dist-packages folder in linux and macOS then python numpy include path not found error may occur.
• Also, you may have multiple versions of python installed in your system and there are chances that wrong interpreter is selected while executing the program. This way also you won’t be able to access the numpy module.
• Below we have shown the ways to see the current path where numpy module is installed.

# using pip
python -m pip show numpy

# using anaconda
conda list numpy

Read Python NumPy Sum

Python Import Numpy Not Working

In this section, we will learn how to fix python import numpy not working error.

• Python import numpy is not working that means eithers the module is not installed or the module is corrupted.
• To fix the corrupted module, uninstall it first then reinstall it.

# pip users follow these steps

pip uninstall numpy
pip install numpy

# conda users follow these steps
conda remove numpy
conda install numpy

• If you are getting an error ” No module found ‘numpy’ then install the module using pip or conda package manager.

pip install numpy

or 

conda install numpy

• In case you are not using package mangers and want to install numpy on bare metal than windows users can download numpy from this website and linux or macOS users can follow the below command.

# Linux Debian (ubuntu)
sudo apt install numpy

# Linux RHEL
yum install numpy

# macOS 
brew install numpy

Read Python NumPy square with examples

Python Numpy Transpose Not Working

In this section, we will learn how to fix the python numpy transpose not working error.

• Transpose refers to changing position of values in the array in python numpy.
• Using numpy.transpose() method in python numpy we can perform transpose an array.
• Python numpy transpose method reverses the shape of an array. Suppose the shape of an array is (5, 2,3) so after applyting transpose function it will become (3, 2, 5).
• Incase the array is of 1D then no effect of transpose method will be displayed.
• In our example, we have displayed both 1D and multiple dimensional array.

Source Code:

In this source code, we have performed python numpy transpose using single and multiple dimensional arrays.

import numpy as np

# one dimensional array
arry = np.arange(10).reshape(10)
arry.transpose()

# multiple dimensional array
arr = np.arange(30).reshape(5, 3, 2)
arr.transpose()

Output:

In this output, we have demonstrated transpose on single-dimensional array. No change is observed as the transpose method reverses the shape of the numpy array. Since this has a single shape so it can’t be reversed.

In this output, a multiple dimensional array got created, and when we have applied the transpose method on this array the shape is reversed from (5, 3, 2) to (2, 3, 5).

Related Python NumPy tutorials:

• Python Absolute Value
• Python NumPy Divide
• Python NumPy Add Tutorial
• Python NumPy Count – Useful Guide
• Python NumPy to list with examples
• Python NumPy read CSV
• Python NumPy log
• Python NumPy where with examples

In this Python tutorial, we have learned how to fix the python numpy not found error. Also, we have covered these topics.

• Python Numpy Not Found
• Ubuntu Python Numpy Not Found
• Anaconda Python Numpy Not Found
• Vscode Python Numpy Not found
• Python Numpy dll Not Found
• Python Numpy Include Path-Not Found
• Python Import Numpy Not Working
• Python Numpy Transpose Not Working