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Cryptography keeps information safe when sent between computers or stored on a computer. It involves changing readable text (plaintext) into unreadable text (ciphertext) and then back to readable text. Python has a cryptography library that helps us do this. With almost 50 million downloads, it’s one of the top 100 Python libraries. This library offers easy-to-use tools for common cryptographic tasks like encryption, hashing, and key generation.
In this tutorial, we’ll walk you through the steps of installing cryptography in Python on Windows and Linux.
You can install Cryptography in Python on a Linux machine. To do this, you must meet the prerequisites, and then you can proceed with the cryptography installation in Python, as described in the following steps:
To install cryptography in Python, first, make sure Python and pip are set up on your Linux system. You can check if they’re installed by running the following commands:
python3 --version && pip --version
You can read our dedicated guides on installing Python on Ubuntu and pip on Windows and Linux if they are not already installed on your system.
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Similarly, you can run the following command to install Cryptography on Linux:
pip install cryptography
However, while running this command, you may face the “externally-managed-environment” error:
In this case, you can create a virtual environment to avoid conflicts with system packages:
python3 -m venv myenv
Next, execute the source command to activate the newly created virtual environment:
source myenv/bin/activate
Finally, use the pip package manager to install cryptography in Python on Linux:
Read also How to Install Python on Windows
After the successful installation of Cryptography in Python, simply run the following command on your Linux system to confirm its installation:
pip show cryptography
You can also import and print the Python cryptography library version to verify its installation:
python -c "import cryptography; print(cryptography.__version__)"
The method for installing Cryptography in Python on a Windows machine is similar to that on Linux. Make sure you meet the prerequisites, and then you are ready to proceed with the installation process:
Before installing the Cryptography library in Python, make sure that both Python and Pip are installed on your Windows system. You can verify their installation by using the following commands:
Once prerequisites are set up and the system is updated, run the following command to install cryptography in Python:
After the successful installation of Cryptography in Python, simply run the following command on your Windows or Linux system to confirm its installation:
Alternatively, you can import the Python cryptography library to print its version:
If the version number is displayed in your terminal without any errors, it means that cryptography is successfully installed:
If you encounter any errors while installing cryptography in Python, install the essential libraries first and then try the installation again with the following command:
sudo apt install build-essential libssl-dev libffi-dev python3-dev
That’s all about how to install cryptography in Python on Windows or Linux.
Python supports a cryptography library that provides essential tools for securing data. Cryptography makes it easy to perform tasks like encryption, hashing, and key management. In this article, we described the steps to install cryptography in Python on both Windows and Linux. Moreover, we explained how to set up prerequisites for cryptography, create virtual environments (if needed), verify the installation, and troubleshoot common errors.
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Cryptography keeps information safe by converting readable text into unreadable text and back again when needed. It ensures that only authorized people can read or access it.
The cryptography library in Python provides tools for securing data by performing tasks like encryption, hashing, and key management, allowing us to keep information safe when sent over networks or stored.
You can verify your Python and pip installations by running python –version and pip –version commands in the terminal. These commands return the version numbers if they are correctly installed.
To resolve this error, create a virtual environment with python3 -m venv myenv command, activate it using source myenv/bin/activate, and then install cryptography inside the virtual environment.
Run pip show cryptography to view its details or execute python -c “import cryptography; print(cryptography.__version__)” to display the library’s version.
Ensure necessary libraries are installed by running the sudo apt install build-essential libssl-dev libffi-dev python3-dev command before attempting the installation again.
Yes, cryptography is compatible with macOS. You can install it the same way using pip, but additional dependencies may be required depending on the system configuration.
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