Error publishing app on hosting

Python Help
1

Hello,
Does anyone know what the following error means?

/usr/local/gems/gems/passenger-6.0.12/src/helper-scripts/wsgi-loader.py:26: DeprecationWarning: the imp module is deprecated in favour of importlib and slated for removal in Python 3.12; 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/local/gems/gems/passenger-6.0.12/src/helper-scripts/wsgi-loader.py", line 369, in <module>
    app_module = load_app()
                 ^^^^^^^^^^
  File "/usr/local/gems/gems/passenger-6.0.12/src/helper-scripts/wsgi-loader.py", line 76, in load_app
    return imp.load_source('passenger_wsgi', startup_file)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/qwertgolmar/.local/lib/python3.11/imp.py", line 172, in load_source
    module = _load(spec)
             ^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 721, in _load
  File "<frozen importlib._bootstrap>", line 690, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 940, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "/home/qwertgolmar/www/app_flask/app.py", line 6, in <module>
    from flask import Flask, render_template, request, redirect, url_for, flash
ModuleNotFoundError: No module named 'flask'

I’m trying to load my app on a hosting with python3.11 (it’s the one I have locally) and after launching
./python3 -m pip install -r ~/www/app_flask/requirements.txt
to install all modules.
Thank you.

2

Looks like flask didn’t install properly. Can you post the contents of your requirements.txt please?

3

If I do a pip list I get installed.

blinker==1.6.2
certifi==2023.5.7
cffi==1.15.1
charset-normalizer==3.1.0
click==8.1.3
colorama==0.4.6
cryptography==40.0.2
Flask==2.3.2
Flask-Login==0.6.2
Flask-MySQLdb==1.0.1
Flask-WTF==1.1.1
idna==3.4
itsdangerous==2.1.2
Jinja2==3.1.2
MarkupSafe==2.1.2
msal==1.22.0
mysqlclient==2.1.1
Pillow==9.5.0
pycparser==2.21
PyJWT==2.7.0
python-utils==3.6.0
requests==2.31.0
typing_extensions==4.6.2
urllib3==2.0.2
utils==1.0.1
Werkzeug==2.3.4
WTForms==3.0.1
4

What is in your requirements.txt though?

5

what is shown in the previous comment is the requirements.txt

6

Is it, or is it the output of pip list?

7

is the file requirements.txt

8

I solved more or less the above although I still have problems. Right now let’s say the application starts but when it goes to the login screen (it does it automatically if you’re not registered), I get all these errors in the server logs.

App 1833644 output:   File "/home/qwertgolmar/.local/lib/python3.9/site-packages/flask/app.py", line 2190, in wsgi_app
App 1833644 output:   File "/home/qwertgolmar/.local/lib/python3.9/site-packages/flask/app.py", line 1486, in full_dispatch_request
App 1833644 output:   File "/home/qwertgolmar/.local/lib/python3.9/site-packages/flask/app.py", line 1484, in full_dispatch_request
App 1833644 output:   File "/home/qwertgolmar/.local/lib/python3.9/site-packages/flask/app.py", line 1469, in dispatch_request
App 1833644 output:   File "/home/qwertgolmar/www/app.py", line 58, in login
App 1833644 output:   File "/home/qwertgolmar/.local/lib/python3.9/site-packages/flask/templating.py", line 151, in render_template
App 1833644 output:   File "/home/qwertgolmar/.local/lib/python3.9/site-packages/flask/templating.py", line 132, in _render
App 1833644 output:   File "/home/qwertgolmar/.local/lib/python3.9/site-packages/jinja2/environment.py", line 1301, in render
App 1833644 output:   File "/home/qwertgolmar/.local/lib/python3.9/site-packages/jinja2/environment.py", line 936, in handle_exception
App 1833644 output:   File "/home/qwertgolmar/www/templates/auth/login.html", line 1, in top-level template code
App 1833644 output:   File "/home/qwertgolmar/www/templates/base.html", line 16, in top-level template code
App 1833644 output:   File "/home/qwertgolmar/www/templates/auth/login.html", line 27, in block 'body'
App 1833644 output:   File "/home/qwertgolmar/.local/lib/python3.9/site-packages/jinja2/utils.py", line 83, in from_obj
App 1833644 output:   File "/home/qwertgolmar/.local/lib/python3.9/site-packages/flask/app.py", line 2190, in wsgi_app
App 1833644 output:   File "/home/qwertgolmar/.local/lib/python3.9/site-packages/flask/app.py", line 1486, in full_dispatch_request
App 1833644 output:   File "/home/qwertgolmar/.local/lib/python3.9/site-packages/flask/app.py", line 1484, in full_dispatch_request
App 1833644 output:   File "/home/qwertgolmar/.local/lib/python3.9/site-packages/flask/app.py", line 1469, in dispatch_request
App 1833644 output:   File "/home/qwertgolmar/www/app.py", line 58, in login
App 1833644 output:   File "/home/qwertgolmar/.local/lib/python3.9/site-packages/flask/templating.py", line 151, in render_template
App 1833644 output:   File "/home/qwertgolmar/.local/lib/python3.9/site-packages/flask/templating.py", line 132, in _render
App 1833644 output:   File "/home/qwertgolmar/.local/lib/python3.9/site-packages/jinja2/environment.py", line 1301, in render
App 1833644 output:   File "/home/qwertgolmar/.local/lib/python3.9/site-packages/jinja2/environment.py", line 936, in handle_exception
App 1833644 output:   File "/home/qwertgolmar/www/templates/auth/login.html", line 1, in top-level template code
App 1833644 output:   File "/home/qwertgolmar/www/templates/base.html", line 16, in top-level template code
App 1833644 output:   File "/home/qwertgolmar/www/templates/auth/login.html", line 27, in block 'body'
App 1833644 output:   File "/home/qwertgolmar/.local/lib/python3.9/site-packages/jinja2/utils.py", line 83, in from_obj

the local application does not show any errors… in the hosting it does not even reach the login part.
do you know what it means?

9

Does anyone know what these errors mean?

App 306039 output:   File "/home/qwertgolmar/www/templates/login.html", line 1, in top-level template code
App 306039 output:   File "/home/qwertgolmar/www/templates/base.html", line 16, in top-level template code
App 306039 output:   File "/home/qwertgolmar/www/templates/login.html", line 27, in block 'body'
10

After many tests, I see that the problem is in the code

{% extends 'base.html' %}
{% block title %}Login{% endblock %}
{% for message in messages %}
{% endfor %}

For some reason the hosting does not read it correctly and it gives an error but locally it works fine for me.

is there any reason?