i just moved from bottleframework to flask. I changes what needed to be altered to convert the code and when i run it i just get "Internal server error" Running tail -f ../logs/error_log i get no errors. How can i find out what is the culprit her

[vergos....@gmail.com]

Στις Παρασκευή, 9 Ιουλίου 2021 στις 12:03:00 π.μ. UTC+3, ο χρήστης Menno Holscher έγραψε:
> Op 08-07-2021 om 15:42 schreef vergos.... at gmail.com:
> > i just moved from bottleframework to flask. I changes what needed to be altered to convert the code and when i run it i just get "Internal server error"
> This error is the error any web site shows when the code of your 
> application has an error.
> > How can i find out what is the culprit here? 
> > 
> > [nikos at superhost wsgi]$ export FLASK_APP=www.py 
> > [nikos at superhost wsgi]$ export FLASK_ENV=development 
> > [nikos at superhost wsgi]$ flask run 
> > * Serving Flask app 'www.py' (lazy loading) 
> > * Environment: development 
> > * Debug mode: on 
> > Usage: flask run [OPTIONS] 
> > Try 'flask run --help' for help. 
> > 
> > Error: While importing 'www', an ImportError was raised: 
> > 
> > Traceback (most recent call last): 
> > File "/usr/local/lib/python3.6/site-packages/flask/cli.py", line 256, in locate_app 
> > __import__(module_name) 
> > File "/home/nikos/wsgi/www.py", line 4, in <module> 
> > import counters 
> > File "/home/nikos/wsgi/counters.py", line 6, in <module> 
> > from flask import run, route, request, redirect 
> > ImportError: cannot import name 'run' 
> >
> When I import flask in the REPL (the Python command processor) and look 
> at what it exports: 
> 
> >>> import flask 
> >>> dir(flask) 
> ['Blueprint', 'Config', 'Flask', 'Markup', 'Request', 'Response', 
> 'Session', '__builtins__', '__cached__', '__doc__', '__file__', 
> '__loader__', '__name__', '__package__', '__path__', '__spec__', 
> '__version__', '_app_ctx_stack', '_compat', '_request_ctx_stack', 
> 'abort', 'after_this_request', 'app', 'appcontext_popped', 
> 'appcontext_pushed', 'appcontext_tearing_down', 
> 'before_render_template', 'blueprints', 'cli', 'config', 
> 'copy_current_request_context', 'ctx', 'current_app', 'escape', 'flash', 
> 'g', 'get_flashed_messages', 'get_template_attribute', 'globals', 
> 'got_request_exception', 'has_app_context', 'has_request_context', 
> 'helpers', 'json', 'json_available', 'jsonify', 'make_response', 
> 'message_flashed', 'redirect', 'render_template', 
> 'render_template_string', 'request', 'request_finished', 
> 'request_started', 'request_tearing_down', 'safe_join', 'send_file', 
> 'send_from_directory', 'session', 'sessions', 'signals', 
> 'signals_available', 'stream_with_context', 'template_rendered', 
> 'templating', 'url_for', 'wrappers'] 
> ... there is no "run" there. What were you trying to achieve? 
> 
> If you are thinking about the "flask run" mentioned in startup, that is 
> a bash/cmd command, an easy way to start the server from the command line: 
> 
> (venv):~/python/debtors> export FLASK_APP=debtors ; flask run 
> * Serving Flask app "debtors" 
> * Environment: production 
> WARNING: This is a development server. Do not use it in a production 
> deployment. 
> Use a production WSGI server instead. 
> * Debug mode: off 
> * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit) 
> 
> 
> -- 
> Met vriendelijke groet / Kind regards 
> 
> Menno Hölscher

Now it complains it cannot find the module route.
How is that even possible?

Do i have  something wrong in the www.py?

from flask import Flask, route, request, redirect, render_template, url_for, send_from_directory, debug

app = Flask(__name__)
app.run(debug=True)

[nikos at superhost wsgi]$ flask run
 * Serving Flask app 'www.py' (lazy loading)
 * Environment: production
   WARNING: This is a development server. Do not use it in a production deployment.
   Use a production WSGI server instead.
 * Debug mode: off
<module 'flask' from '/usr/local/lib/python3.6/site-packages/flask/__init__.py'>
Usage: flask run [OPTIONS]
Try 'flask run --help' for help.

Error: While importing 'www', an ImportError was raised:

Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/flask/cli.py", line 256, in locate_app
    __import__(module_name)
  File "/home/nikos/wsgi/www.py", line 4, in <module>
    import counters
  File "/home/nikos/wsgi/counters.py", line 9, in <module>
    from flask import route, request, redirect
ImportError: cannot import name 'route'

Also i use run for this

app.run( host='superhost.gr', port=5000, debug=True )