E0401:Unable to import 'flask'

Question

Am new in flask development and trying to import flask in my project but Pylint is giving this error in VSCode E0401:Unable to import 'flask', but I installed flask already in my project but I don't know how to solve this, how can I resolve it.

My virtual environment is installed , and the image which proves is below:

The error am getting code , the underlined from:

what am I missing?

Solution 1

Solution is to switch Interpreter

Simple solution :

Go to command palette Type-- Python:Select Interpreter

Select virtual environment that you created

answered specifically for vscode can work for other also .

Solution 2

Go to Command Palette using Ctrl + Shift + P. select python:select interpreter and then choose your appropriate virtualenv.

Solution 3

I guess VS Code doesn't use the correct virtualenv.

To select a virtualenv using the GUI, see Configuring Python environments.

If you use the terminal and have code in your path, launch VS code from your workspace and the virtualenv will be loaded automatically:

cd python-workspace
code -n python-workspace

(note: the -n is for new window)

If this does not work, ensure that pylint is installed in your virtualenv (i.e. your are not using the global pylint). If it still does not work, have a look at this troubleshooting guide.

Solution 4

Due to the fact that you are using a virtual environment, first of all it's required that Pylint is installed inside this virtual env.

Furthermore, you need to add the following entry to your workspace settings to avoid the [pylint] E0401 error:

"python.linting.pylintPath": "/path/to/your/virtualenv/bin/pylint"

This overrides the user settings (global settings) and instructs VSCode to use the Pylint version within your virtual env (instead of the global one). That was probably the point you was missing ;-)

Solution 5

I have the same problem when I code in VS code.

I open Command Palette by ⇧⌘P. And run the linter to solve this problem like this picture.

Here is the document from VS code.

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Comments

[Admin]

I edited my post , that's what I see as my virtual env

[suspicious_williams]

This worked for me. I was following the gcp Flask tutorial and received the same error. On my system (macOS) I had to type >Python: to display a list of python commands, then select Set Interpreter

[montrealist]

Also need to restart the VS Code terminal to pick that up!

[montrealist]

Also need to restart the VS Code terminal to pick that up!

[Noumenon]

To expand on "Select virtual environment that you created": I had to browse to venv/Scripts/python.exe (on Windows).