No module named 'flask'

[Acutapugione]

/usr/share/passenger/helper-scripts/wsgi-loader.py:26: DeprecationWarning: the imp module is deprecated in favour of importlib; see the module's documentation for alternative uses
import sys, os, re, imp, threading, signal, traceback, socket, select, struct, logging, errno
Traceback (most recent call last):
File "/usr/share/passenger/helper-scripts/wsgi-loader.py", line 369, in
app_module = load_app()
File "/usr/share/passenger/helper-scripts/wsgi-loader.py", line 76, in load_app
return imp.load_source('passenger_wsgi', startup_file)
File "/usr/lib/python3.9/imp.py", line 171, in load_source
module = _load(spec)
File "", line 711, in _load
File "", line 680, in _load_unlocked
File "", line 855, in exec_module
File "", line 228, in _call_with_frames_removed
File "/var/www/power_flask/powerhome_flask/passenger_wsgi.py", line 1, in
from app import app as application
File "/var/www/power_flask/powerhome_flask/app/init.py", line 3, in
from flask import Flask
ModuleNotFoundError: No module named 'flask'

[owenwu811]

pip install flask