ModuleNotFoundError: No module named 'OpenSSL' in Python

# ModuleNotFoundError: No module named 'OpenSSL' in Python

The Python "ModuleNotFoundError: No module named 'OpenSSL'" occurs when we forget to install the pyOpenSSL module before importing it or install it in an incorrect environment.

To solve the error, install the module by running the pip install pyOpenSSL command.

Open your terminal in your project's root directory and install the pyOpenSSL module.

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# 👇️ In a virtual environment or using Python 2
pip install pyOpenSSL

# 👇️ For Python 3 (could also be pip3.10 depending on your version)
pip3 install pyOpenSSL

# 👇️ If you get a permissions error
sudo pip3 install pyOpenSSL
pip install pyOpenSSL --user

# 👇️ If you don't have pip in your PATH environment variable
python -m pip install pyOpenSSL

# 👇️ For Python 3 (could also be pip3.10 depending on your version)
python3 -m pip install pyOpenSSL

# 👇️ Using py alias (Windows)
py -m pip install pyOpenSSL

# 👇️ For Anaconda
conda install -c anaconda pyopenssl

# 👇️ For Jupyter Notebook
!pip install pyOpenSSL

After you install the pyOpenSSL package, try importing it like:

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from OpenSSL import crypto

import OpenSSL

print(OpenSSL)

print(crypto)

Make sure you don't misspell OpenSSL because the import statement is case sensitive.

The error occurs for multiple reasons:

1. Not having the pyOpenSSL package installed by running pip install pyOpenSSL.
2. Installing the package in a different Python version than the one you're using.
3. Installing the package globally and not in your virtual environment.
4. Your IDE running an incorrect version of Python.
5. Naming your module OpenSSL.py which would shadow the official module.
6. Declaring a variable named OpenSSL which would shadow the imported variable.

If the error persists, get your Python version and make sure you are installing the package using the correct Python version.

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python --version

For example, my Python version is 3.10.4, so I would install the pyOpenSSL package with pip3.10 install pyOpenSSL.

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pip3.10 install pyOpenSSL

# 👇️ If you get a permissions error use pip3 (NOT pip3.X)
sudo pip3 install pyOpenSSL

Notice that the version number corresponds to the version of pip I'm using.

If the PATH for pip is not set up on your machine, replace pip with python3 -m pip:

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# 👇️ Make sure to use your version of Python, e.g. 3.10
python3 -m pip install pyOpenSSL

If the error persists, try restarting your IDE and development server/script.

# Check if the package is installed

You can check if you have the pyOpenSSL package installed by running the pip show pyOpenSSL command.

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# 👇️ Check if you have pyOpenSSL installed
pip show pyOpenSSL

# 👇️ If you don't have pip set up in PATH
python -m pip show pyOpenSSL

The pip show pyOpenSSL command will either state that the package is not installed or show a bunch of information about the package, including the location where the package is installed.

# Make sure your IDE is using the correct Python version

If the package is not installed, make sure your IDE is using the correct version of Python.

For example, In VSCode, you can press CTRL + Shift + P or (⌘ + Shift + P on Mac) to open the command palette.

Then type "Python select interpreter" in the field.

Then Select the correct Python version from the dropdown menu.

# Install the package in a Virtual Environment

If you are using a virtual environment, make sure you are installing pyOpenSSL in your virtual environment and not globally.

You can try creating a virtual environment if you don't already have one.

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# 👇️ Use the correct version of Python when creating VENV
python3 -m venv venv

# 👇️ Activate on Unix or MacOS
source venv/bin/activate

# 👇️ Activate on Windows (cmd.exe)
venv\Scripts\activate.bat

# 👇️ Activate on Windows (PowerShell)
venv\Scripts\Activate.ps1

# 👇️ Install pyOpenSSL in your virtual environment
pip install pyOpenSSL

If the python3 -m venv venv command doesn't work, try the following 2 commands:

• python -m venv venv
• py -m venv venv

Your virtual environment will use the version of Python that was used to create it.

You also shouldn't be declaring a variable named OpenSSL as that would also shadow the original module.

# Try reinstalling the package

If the error is not resolved, try to uninstall the pyOpenSSL package and then reinstall it.

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# 👇️ Check if you have pyOpenSSL installed
pip show pyOpenSSL

# 👇️ If you don't have pip set up in PATH
python -m pip show pyOpenSSL

# 👇️ Uninstall pyOpenSSL
pip uninstall pyOpenSSL

# 👇️ If you don't have pip set up in PATH
python -m pip uninstall pyOpenSSL

# 👇️ Install pyOpenSSL
pip install pyOpenSSL

# 👇️ If you don't have pip set up in PATH
python -m pip install pyOpenSSL

Try restarting your IDE and development server/script.

You can also try to upgrade the version of the pyOpenSSL package.

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pip install pyOpenSSL --upgrade

# 👇️ If you don't have pip set up in PATH
python -m pip install pyOpenSSL --upgrade

# Table of Contents

1. Install pyOpenSSL on Windows
2. Install pyOpenSSL on macOS or Linux
3. Install pyOpenSSL in Visual Studio Code
4. Install pyOpenSSL in PyCharm
5. Install pyOpenSSL in Anaconda
6. Install pyOpenSSL in Jupyter Notebook

# Install pyOpenSSL on Windows

To install the pyOpenSSL module on Windows:

1. Type CMD in the search bar and open the Command Prompt application.
2. Type pip install pyopenssl and press Enter.

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pip install pyopenssl

# 👇️ For Python 3
pip3 install pyopenssl

# 👇️ If you don't have pip in your PATH environment variable
python -m pip install pyopenssl

# 👇️ For Python 3
python3 -m pip install pyopenssl

# 👇️ Using py alias
py -m pip install pyopenssl

# 👇️ If you get a permissions error
pip install pyopenssl --user

# 👇️ For Anaconda
conda install -c anaconda pyopenssl

If the command doesn't succeed, try running CMD as an administrator.

If you get the error 'pip' is not recognized as an internal or external command, use the python -m command when installing pyopenssl.

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python -m pip install pyopenssl

python3 -m pip install pyopenssl

py -m pip install pyopenssl

Alternatively, you can install the pyOpenSSL module in a virtual environment:

1. Open the root directory of your project.
2. Press Shift and right-click in Explorer.

3. Click on "Open PowerShell window here".
4. Run the following commands.

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# 👇️ Might also be: "python3 -m venv venv"
python -m venv venv

# 👇️ Activate on Windows (PowerShell)
venv\Scripts\Activate.ps1

# 👇️ Activate on Windows (cmd.exe)
venv\Scripts\activate.bat

# 👇️ Install `pyopenssl` in your virtual environment
pip install pyopenssl

If the python -m venv venv command doesn't work, try the following 2 commands:

• python3 -m venv venv
• py -m venv venv.

If you see an error message that ps1 cannot be loaded because running scripts is disabled on this system, run the following command, type "yes" when prompted and rerun the activation command.

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Set-ExecutionPolicy RemoteSigned -Scope CurrentUser

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pip show pyopenssl
pip3 show pyopenssl

python -m pip show pyopenssl
python3 -m pip show pyopenssl

The pip show pyopenssl command will either state that the package is not installed or show a bunch of information about the package, including the location where the package is installed.

# Install pyOpenSSL on macOS or Linux

To install pyOpenSSL on macOS or Linux:

1. Search for "terminal" and start the application.
2. Type pip install pyOpenSSL and press Enter.

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pip install pyopenssl

# 👇️ For Python 3
pip3 install pyopenssl

# 👇️ If you get a permissions error
sudo pip3 install pyopenssl

# 👇️ If you don't have pip in your PATH environment variable
python -m pip install pyopenssl

# 👇️ For Python 3
python3 -m pip install pyopenssl

# 👇️ Alternative if you get a permissions error
pip install pyopenssl --user

# 👇️ For Anaconda
conda install -c anaconda pyopenssl

If you get an error that pip isn't found, use the python -m command.

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python -m pip install pyopenssl

python3 -m pip install pyopenssl

If you get a permissions error, prefix the command with sudo.

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sudo pip install pyopenssl

sudo pip3 install pyopenssl

If you are on Linux, make sure you have the prerequisites installed.

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# 👇️ For Debian (Ubuntu)
sudo apt-get install libssl-dev libffi-dev

# 👇️ For Redhat / CentOS
sudo yum install openssl-devel libffi-devel

The libssl-dev and libffi-dev packages are used for cryptography.

Alternatively, you can install the PyOpenSSL package in a virtual environment:

1. Open your terminal in the root directory of your project.
2. Run the following commands.

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# 👇️ Could also be "python -m venv venv"
python3 -m venv venv

# 👇️ Activate virtual env on macOS or Linux
source venv/bin/activate

# 👇️ Install `pyopenssl` in your virtual environment
pip install pyopenssl

Your virtual environment will use the version of Python that was used to create it.

You can use the pip show command to verify PyOpenSSL has been installed successfully.

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pip show pyopenssl
pip3 show pyopenssl

python -m pip show pyopenssl
python3 -m pip show pyopenssl

The pip show pyopenssl command will either state that the package is not installed or show a bunch of information about the package.

# Install pyOpenSSL in Visual Studio Code

To install pyOpenSSL in Visual Studio Code:

1. Press CTRL + ` (Backtick) on your keyboard to open the terminal.
2. Run the pip install pyopenssl command to install the pyopenssl module.

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pip install pyopenssl

# 👇️ For Python 3
pip3 install pyopenssl

# 👇️ If you get a permissions error
sudo pip3 install pyopenssl

# 👇️ If you don't have pip in your PATH environment variable
python -m pip install pyopenssl

# 👇️ For Python 3
python3 -m pip install pyopenssl

# 👇️ Using py alias
py -m pip install pyopenssl

# 👇️ Alternative if you get a permissions error
pip install pyopenssl --user

When installing Python modules in Visual Studio code, make sure that your IDE is configured to use the correct Python version.

Press CTRL+Shift+P or (⌘ + Shift + P on Mac) to open the command palette.

Then type "Python select interpreter" in the field.

Then Select the correct Python version from the dropdown menu.

You can use the python --version command if you need to get your version of Python.

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python --version
python3 --version

You can also try creating a virtual environment if you don't already have one.

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# 👇️ Could also be "python -m venv venv" or "py -m venv venv"
python3 -m venv venv

# 👇️ Activate on Unix or MacOS
source venv/bin/activate

# 👇️ Activate on Windows (cmd.exe)
venv\Scripts\activate.bat

# 👇️ Activate on Windows (PowerShell)
venv\Scripts\Activate.ps1

# 👇️ Install `pyopenssl` in your virtual environment
pip install pyopenssl

Your virtual environment will use the version of Python that was used to create it.

# Install pyOpenSSL in PyCharm

To install pyOpenSSL in PyCharm:

1. Press Alt+F12 on your keyboard to open the terminal.
2. Run the pip install pyopenssl command to install the pyOpenSSL module.

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pip install pyopenssl

# 👇️ For Python 3
pip3 install pyopenssl

# 👇️ If you get a permissions error
sudo pip3 install pyopenssl

# 👇️ If you don't have pip in your PATH environment variable
python -m pip install pyopenssl

# 👇️ For Python 3
python3 -m pip install pyopenssl

# 👇️ Using py alias
py -m pip install pyopenssl

# 👇️ Alternative if you get a permissions error
pip install pyopenssl --user

Alternatively, you can use the IDE itself to install the module.

1. Click on "File" > "Settings" > "Project" > "Python Interpreter".
2. Click on the + icon and type PyOpenSSL.
3. Click on "Install Package".

Click on "File" > "Settings" > "Project" > "Python Interpreter".

Then Select the correct Python version from the dropdown menu.

You can use the python --version command if you need to get your version of Python.

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python --version
python3 --version

# Install pyOpenSSL in Anaconda

To install pyOpenSSL in Anaconda:

1. Open your Anaconda Navigator.
2. Click on "Environments" and select your project.
3. Type pyopenssl in the search bar to the right.
4. Tick the pyopenssl package and click on "Apply".

Alternatively, you can install the pyOpenSSL package with a command.

If you are on Windows, search for "Anaconda Prompt" and open the application.

If you are on macOS or Linux, open your terminal.

Run the following command to install the pyOpenSSL package.

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# 👇️ Using conda
conda install -c anaconda pyopenssl

# 👇️ Alternatively use `pip`
pip install pyopenssl

# 👇️ For Python 3
pip3 install pyopenssl

# 👇️ If you get a permissions error
sudo pip3 install pyopenssl

# 👇️ If you don't have pip in your PATH environment variable
python -m pip install pyopenssl

# 👇️ For Python 3
python3 -m pip install pyopenssl

# 👇️ Using py alias
py -m pip install pyopenssl

# 👇️ Alternative if you get a permissions error
pip install pyopenssl --user

Click on the following article if you need to install a specific version of the package using Anaconda.

# Install pyOpenSSL in Jupyter Notebook

To install pyOpenSSL in Jupyter Notebook:

1. Open your terminal and type "jupyter notebook".

2. Click on "New" and then "Terminal" in the browser tab.

3. Type pip install pyopenssl and press Enter.

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# 👇️ Using pip
pip install pyopenssl

# 👇️ For Python 3
pip3 install pyopenssl

# 👇️ If you get a permissions error
sudo pip3 install pyopenssl

# 👇️ If you don't have pip in your PATH environment variable
python -m pip install pyopenssl

# 👇️ For Python 3
python3 -m pip install pyopenssl

# 👇️ Using py alias
py -m pip install pyopenssl

# 👇️ Using conda
conda install -c anaconda pyopenssl

# 👇️ Alternative if you get a permissions error
pip install pyopenssl --user

Alternatively, you can use the Python ipykernel.

1. Open your terminal and type "jupyter notebook".

2. Click on "New" and then click on "Python 3 (ipykernel)".

3. Type !pip install pyopenssl and click on "Run".

Note that the pip install command must be prefixed with an exclamation mark if you use this approach.

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!pip install pyopenssl

Once you type the command, click "Run" to install the pyopenssl module.

If you get a permissions error, e.g. "[WinError: 5] Access is denied", add the --user option to the installation command.

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!pip install pyopenssl --user

If the error persists, try to restart the Jupyter Kernel and rerun the command.