I'm learning Python and part of the course setting up a webserver using Flask. I followed the steps as per the Flask installation documentation and for some reason the flask module is underlined as shown below. When I hover my mouse, I get additional information as below.
import flask could not be resolved from source pylance
The server is running fine though. Should i be ignoring the notification? If not what dependency have i missed?
Below is the code to setup the server
from flask import Flask
app = Flask(__name__)
@app.route('/')
def hello_world():
return 'Hello, World!'
When I did not install the module " flask
", I ran into the problem you described:
The reason is that the module " flask
" is not installed in the Python environment we currently use in VSCode.
Please use the shortcut key Ctrl+Shift+` to open a new VSCode terminal, it will automatically enter the currently selected environment, and then use the command " pip show flask " to check the installation location of the module "flask":
If it still shows that the module could not be resolved, it is recommended that you reinstall the module " flask ".
In VS Code, Go to "Python: Select interpreter" by Ctrl + Shift + P. Choose python interpreter ('base': conda)
I experienced the same situation until I changed the virtual environment of my VS Code to indicate the correct value that I should use:
Problem Will bi fixed. I have also faced same problem. but I have fixed it following this procedure
In case you are using a virtual environment;
Create a virtual environment.
python3.9 -m venv --without-pip virtual
Activate the virtual environment.
source virtual/bin/activate
Install the pip for the created virtual environment.
curl https://bootstrap.pypa.io/get-pip.py | python
Install flask into the virtual env.
pip install flask
Create the python file. For your case,
touch server.py
Open file and import the module
If it underlines again, install pip again while the.py file is still open.
pip install flask
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.