Modulenotfounderror: no module named 'crypto' [SOLVED]

What is modulenotfounderror: no module named ‘crypto’ in Python?

The error “modulenotfounderror: no module named ‘crypto'” occurs in Python when you forget to install the “pycryptodome” module before importing it or installing it in the wrong environment.

Why does this error occur?

The no module named ‘crypto’ in Python error message occurs because of the following reasons:

The module is not installed.
The module is installed in a different Python environment.
Python interpreter cannot find the ‘crypto’ module in your environment.

Your Integrated Development Environment (IDE) is using an incorrect Python version
You’re installing the module in a different version of Python than the one you’re actually using.

What is a ‘crypto’ module in Python?

The “crypto” module in Python, is a component of the PyCrypto library.

This module encompasses a variety of secure hash functions, including SHA256 and RIPEMD160, along with several encryption algorithms such as AES, DES, RSA, ElGamal, and others.

Unfortunately, PyCrypto is not actively maintained anymore and it is being deprecated.

On the other hand, it is advised to use the “pycryptodome” module as an alternative.

How to fix the modulenotfounderror: no module named ‘crypto’ in Python?

To fix this error, you need to install the “pycryptodome” module.

If you have “crypto” or “pycrypto” modules installed, it’s suggested to uninstall them first to avoid collisions.

Solution 1: Install the pycryptodome

Here are the commands you can use:

Use the following command if you are using Python 2:

pip install pycryptodome

Use the following command if you are using Python 3:

pip3 install pycryptodome

Use the following command if you get a permissions error:

sudo pip3 install pycryptodome

pip install pycryptodome --user

Use the following command if you are using Anaconda:

conda install -c conda-forge pycryptodome

Use the following command if you are using Jupyter Notebook:

!pip install pycryptodome

If you don’t have pip in your PATH environment variable, you can use the following command:

python -m pip install pycryptodome

For python 3:

python3 -m pip install pycryptodome

Solution 2: Check if the module is installed

To check if the module is installed, use the following command:

pip show pycryptodome

Solution 3: Check the spelling

Please ensure the spelling of your module is correct, as there may be instances where it has been misspelled.

Solution 4: Check the version of Python

To check the version of Python you are currently using, use the following command:

Python -V

Solution 5: Reinstalling the module

If the error still exists, try to reinstall the module.

Use the following command to uninstall:

pip uninstall pycryptodome

Use the following command to install pycryptodome:

pip install pycryptodome

Conclusion

In conclusion, the error “ModuleNotFoundError: No module named ‘Crypto'” error message pops up when your Python environment lacks the “pycryptodome” module.

To fix this error, the command pip install pycryptodome needs to be executed.

By following the guide above, there’s no doubt that you’ll be able to resolve this error quickly.

We hope that you’ve resolved the error with the help of this guide. Thank you for reading, and have fun coding!

Modulenotfounderror: no module named ‘crypto’