No module called "Cryptography" - Finxter (2023)

rate this message

Quick Solution:Python raises theImportError: No module named "encryption"if you can't find the libraryCryptography. The most common cause of this error is that you have not installed it.Cryptographyexpressly withpip install encryption. Alternatively, you can have otherPython versionson your computer andCryptographyis not installed for the version you are using.

(Video) How to Fix : “ImportError: Cannot import name X” in Python?

wording of the problem

You've just discovered the amazing features ofCryptographylibrary and want to try it out, then start your code with the following statement:

import encryption

This is to import the pandas library into your(virtual environment. However, it just throws the followingImportError: No module named Encryption:

>>> import cryptographyTraceback (last call): File "<pyshell#6>", line 1, in <module> import cryptographyModuleNotFoundError: No module named 'cryptography'

Solution idea 1: Install library encryption

The most likely reason is that Python doesn't provide thisCryptographyin your standard library. You must install it first!

Before you can import the pandas module, you need to install it using the Python package managerPip.Make sure pip is installed on your computer.

To fix this error, you can run the following command in Windows shell:

Install $pip encryption

This simple command installsCryptographyin your virtual environment on Windows, Linux and MacOS. It is assumed that yourPipupdated version. If not, use the following two commands in your terminal, command line, or shell (it doesn't hurt anyway):

$ python -m pip install --upgrade pip$ pip install pandas

💡observation: Do not copy and paste$Symbol. This is just to illustrate that you are running it in your shell/terminal/command line.

Solution idea 2: Fix the path

The error may persist even after installationCryptographyLibrary. This probably happens becausePipinstalled but not in the way you can use. AlthoughPipmay be installed on your system, the script cannot find it. So it is not possible to install the libraryPipon the right path.

To fix the path issue on Windows, follow the steps below.

Step 1: Open the folder where you installed Python by opening the command prompt and typingwo Python

No module called "Cryptography" - Finxter (1)

step 2: After opening thePythonfolder, browse and open thescriptsfolder and copy its location. Also make sure that the folder is thePipFile.

No module called "Cryptography" - Finxter (2)

stage 3: Now open thescriptsdirectory at the command prompt with theCDcommand and the location you copied earlier.

No module called "Cryptography" - Finxter (3)

Step 4: Now install the library withpip install encryptionCommand. Here is an analog example:

No module called "Cryptography" - Finxter (4)
(Video) Using python-binance API for Crypto Trading

After completing the above steps, run our script again. And you should get the output you want.

Other solution ideas

  • OModuleNotFoundErrormay seem duerelative imports. In it you will learn all about relative imports and how to create your own moduleThis article.
  • You may have confused the Python and Pip versions on your computer. In this case to installCryptographyfor Python 3, you might want to give it a trypython3 -m pip install encryptionorInstall Pip3 Encryptioninstead ofpip install encryption
  • If you encounter this problem on the server side, try the commandpip install --user encryption
  • If you are using Ubuntu try this command:sudo apt install encryption
  • You can check out our detailed guide.Install encryption here.
  • You can also checkThis articleto learn more about possible issues that can cause an error when importing a library.

Understand the "Import" statement

import encryption

Em Python, omatterThe statement serves two main purposes:

  • Find the module by its name, load and initialize it.
  • Define a name in the local namespace as part of thematterOpinion. This local name is used to refer to the called module throughout the code.

What is the difference between ImportError and ModuleNotFoundError?

What is the difference betweenImportErrorEModuleNotFoundError?

Python define umerror hierarchy, that is, some error classesyou inheritof other error classes. In our case theModuleNotFoundErroris a subclass ofImportErrorClassroom.

You can see it in this screenshot ofDocuments:

No module called "Cryptography" - Finxter (5)

You can also check this relationship withistUnterklasse()built-in function:

>>> issubclass(ModuleNotFoundError, ImportError)True

Em particular, o Python resolve oModuleNotFoundErrorif the module (for exampleCryptography) can not be found. If it can be found, there may be a problem loading the module or certain files within the module. In these cases, Python would throw aImportError.

If an import statement fails to import a module, it will trigger anImportError. This could be due to an incorrect installation or an invalid path. InPython 3.6 or newer, this will generally increase aModuleNotFoundError.

similar videos

The following video shows how to solve the problemImportError:

How to fix: "ImportError: Unable to import name X" in Python?

The video below shows how to do it.Import a role from another folder– Making mistakes often leads toModuleNotFoundError:

(Video) The Rich Have Their Own Ethics: Effective Altruism & the Crypto Crash (ft. F1nn5ter)

How to call a function from another file in Python?

How to fix "ModuleNotFoundError: No module named 'encryption'" in PyCharm

When you create a new Python project inPyCharmGenericNameand try to import itCryptographylibrary, the following error message is thrown:

Traceback (last call): File "C:/Users/.../", line 1, in <module> import cryptographyModuleNotFoundError: No module named 'cryptography'Process completed with exit code 1

The reason for this is that by default every PyCharm project has avirtual environmentwhere you can install custom Python modules. But the virtual environment is initially empty - even if you already have it installedCryptographyin your computer!

Here is a screenshot that illustrates this.pandasLibrary. will be similar toCryptography.

No module called "Cryptography" - Finxter (6)

The solution is simple: use thePyCharm-InstallationTool tips for installing pandas in your virtual environment - two clicks and done!

First, right-click on thepandasText in your editor:

No module called "Cryptography" - Finxter (7)

Second, click "Show context actions' in your context menu. In the new menu that appears, click "Install Pandas" and wait for PyCharm to complete the installation.

The code will run after the installation completes successfully.

Alternatively, you can also open theterminaltool below and type:

Install $pip encryption

If that doesn't work, you can set the Python interpreter to a different version using the following tutorial:

(Video) How I Built My Own ERC-20 Token (1/2)

You can also install a new library manually, for exampleCryptographyin PyCharm using the following procedure:

  • OpenFile > Settings > Projectno menu PyCharm.
  • Select your current project.
  • tightenPython-InterpreterTab within your project's tab.
  • Click on the small+Icon for adding a new library to the project.
  • Now enter the library to install, Pandas in your example, and clickinstallation package.
  • Wait for the installation to complete and close all pop-up windows.

Here is an analog example:

No module called "Cryptography" - Finxter (8)

Here is a complete guide on how to install a library in PyCharm.

  • How to install a library in PyCharm

show humor

To ask: Why do programmers always confuse Halloween and Christmas?
Responder: Because October 31 is the same as December 25.

(If you don't understand this, read our articles onOctober ()Eint()Python built-in functions!)

No module called "Cryptography" - Finxter (9)


During his work as a researcher in the field of distributed systems,Dr. Christian Mayerdiscovered his love of teaching computer science students.

To help students reach a higher level of success in Python, he founded the Programming Education He is the author of the popular programming bookPython dialogs(NoStarch 2020), co-author desPython coffee breakSelf-published book series, computer science enthusiast,freelancer, and owner of one of the 10 largestPython-Blogsworldwide.

His passions are writing, reading and programming. But his greatest passion is serving and helping aspiring programmers improve their skills through Finxter. You canJoin your free email academy here.

(Video) Python memoryview() -- Tame That Strange Beast!


1. [ERROR FIXED] “Attempted relative import in non-package” even with
(Finxter - Create Your Six-Figure Coding Business)
2. How I Created a High-Performance Extensible ChatGPT Chatbot (Easy)
(Finxter - Create Your Six-Figure Coding Business)
3. [Finxter Experience] How Shubham Got Hit By COVID, Regained Control, and Turned His Life Around
(Finxter - Create Your Six-Figure Coding Business)
4. Python setattr() - The Ultimate Guide
(Finxter - Create Your Six-Figure Coding Business)
5. A Guide to Python Namespaces -- With Harry Potter Examples 🤓
(Finxter - Create Your Six-Figure Coding Business)
6. Python Modulo - A Simple Illustrated Guide
(Finxter - Create Your Six-Figure Coding Business)


Top Articles
Latest Posts
Article information

Author: Edmund Hettinger DC

Last Updated: 07/30/2023

Views: 5304

Rating: 4.8 / 5 (78 voted)

Reviews: 93% of readers found this page helpful

Author information

Name: Edmund Hettinger DC

Birthday: 1994-08-17

Address: 2033 Gerhold Pine, Port Jocelyn, VA 12101-5654

Phone: +8524399971620

Job: Central Manufacturing Supervisor

Hobby: Jogging, Metalworking, Tai chi, Shopping, Puzzles, Rock climbing, Crocheting

Introduction: My name is Edmund Hettinger DC, I am a adventurous, colorful, gifted, determined, precious, open, colorful person who loves writing and wants to share my knowledge and understanding with you.