Στις Πέμπτη, 8 Ιουλίου 2021 στις 7:16:27 μ.μ. UTC+3, ο χρήστης Stestagg έγραψε:
> [my reply on the list this time :)]
>
> That's fine. Sorry, I should have provided more information.
>
> This type of error that you're gettting /can/ happen if you have the
> library correctly installed, but within your project, you have a different
> file of the same name as the library.
> Then when python tries to import 'flask', it actually imports your local
> file, NOT the installed flask.
>
> You see the error message is *not* saying that python can't find flask, but
> that it can't find a name `run` within the flask module:
> from flask import run, route, request, redirect
> ImportError: cannot import name 'run'
> Therefore python has successfully found a module named flask somewhere,
> just that it's probably not the module you were expecting it to find.
>
> This is almost always because of the file name issue I mentioned above, OR
> because the wrong version of flask has been installed, or something similar.
>
> One thing to try would be at the *very* top of counters.py, add the
> following lines:
> import flask
> print(flask)
>
> then run your command again, and see what the stdout output is. You should
> see something like:
>
> <module 'flask' from 'XXXXXXXXX'>
>
> Does XXXXXX look like the right place for the flask installation? if not,
> then that's the problem.
>
> Steve
>
> On Thu, Jul 8, 2021 at 5:08 PM Νίκος Βέργος <vergos....@gmail.com>
> wrote:
> > No, the way i have installed flask was under root account with the command
> > pip3 install flask.
> > But even if i installed flask under my nikos user account its evene worse
> > as the file flask is not entered into PATH.
> >
> > So i guess as root i have to install flask, but then why cant it import
> > 'run" ?
> >
> > [root@superhost ~]# whereis flask
> > flask: /usr/local/bin/flask
> >
> > Στις Πέμ, 8 Ιουλ 2021 στις 7:02 μ.μ., ο/η Stestagg <stes...@gmail.com>
> > έγραψε:
> >
> >> Hi
> >>
> >> Do you have a file or folder named 'flask' in the same directory as
> >> www.py by any chance?
> >>
> >> Steve
> >>
> >> On Thu, Jul 8, 2021 at 4:50 PM vergos....@gmail.com <
> >> vergos....@gmail.com> wrote:
> >>
> >>> 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 here?
> >>>
> >>> [nikos@superhost wsgi]$ export FLASK_APP=www.py
> >>> [nikos@superhost wsgi]$ export FLASK_ENV=development
> >>> [nikos@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'
> >>>
> >>> and this is the error_log when tries to be displayed via browser:
> >>>
> >>> [Thu Jul 08 15:08:36.436195 2021] [wsgi:error] [pid 575443:tid
> >>> 139757752112896] [remote 89.210.199.119:6718] mod_wsgi (pid=575443):
> >>> Failed to exec Python script file '/home/nikos/wsgi/www.py'.
> >>>
> >>> [Thu Jul 08 15:08:36.436276 2021] [wsgi:error] [pid 575443:tid
> >>> 139757752112896] [remote 89.210.199.119:6718] mod_wsgi (pid=575443):
> >>> Exception occurred processing WSGI script '/home/nikos/wsgi/www.py'.
> >>>
> >>> [Thu Jul 08 15:08:36.436408 2021] [wsgi:error] [pid 575443:tid
> >>> 139757752112896] [remote 89.210.199.119:6718] Traceback (most recent
> >>> call last):
> >>>
> >>> [Thu Jul 08 15:08:36.436432 2021] [wsgi:error] [pid 575443:tid
> >>> 139757752112896] [remote 89.210.199.119:6718] File
> >>> "/home/nikos/wsgi/www.py", line 4, in <module>
> >>>
> >>> [Thu Jul 08 15:08:36.436436 2021] [wsgi:error] [pid 575443:tid
> >>> 139757752112896] [remote 89.210.199.119:6718] import counters
> >>>
> >>> [Thu Jul 08 15:08:36.436441 2021] [wsgi:error] [pid 575443:tid
> >>> 139757752112896] [remote 89.210.199.119:6718] File
> >>> "/home/nikos/wsgi/counters.py", line 6, in <module>
> >>>
> >>> [Thu Jul 08 15:08:36.436444 2021] [wsgi:error] [pid 575443:tid
> >>> 139757752112896] [remote 89.210.199.119:6718] from flask import run,
> >>> route, request, redirect
> >>>
> >>> [Thu Jul 08 15:08:36.436458 2021] [wsgi:error] [pid 575443:tid
> >>> 139757752112896] [remote 89.210.199.119:6718] ImportError: cannot
> >>> import name 'run'
> >>>
> >>> [Thu Jul 08 15:08:40.075655 2021] [wsgi:error] [pid 575443:tid
> >>> 139757777291008] [remote 89.210.199.119:13389] mod_wsgi (pid=575443):
> >>> Failed to exec Python script file '/home/nikos/wsgi/www.py'.
> >>>
> >>> [Thu Jul 08 15:08:40.075703 2021] [wsgi:error] [pid 575443:tid
> >>> 139757777291008] [remote 89.210.199.119:13389] mod_wsgi (pid=575443):
> >>> Exception occurred processing WSGI script '/home/nikos/wsgi/www.py'.
> >>>
> >>> [Thu Jul 08 15:08:40.075785 2021] [wsgi:error] [pid 575443:tid
> >>> 139757777291008] [remote 89.210.199.119:13389] Traceback (most recent
> >>> call last):
> >>>
> >>> [Thu Jul 08 15:08:40.075802 2021] [wsgi:error] [pid 575443:tid
> >>> 139757777291008] [remote 89.210.199.119:13389] File
> >>> "/home/nikos/wsgi/www.py", line 4, in <module>
> >>>
> >>> [Thu Jul 08 15:08:40.075805 2021] [wsgi:error] [pid 575443:tid
> >>> 139757777291008] [remote 89.210.199.119:13389] import counters
> >>>
> >>> [Thu Jul 08 15:08:40.075810 2021] [wsgi:error] [pid 575443:tid
> >>> 139757777291008] [remote 89.210.199.119:13389] File
> >>> "/home/nikos/wsgi/counters.py", line 6, in <module>
> >>>
> >>> [Thu Jul 08 15:08:40.075813 2021] [wsgi:error] [pid 575443:tid
> >>> 139757777291008] [remote 89.210.199.119:13389] from flask import run,
> >>> route, request, redirect
> >>>
> >>> [Thu Jul 08 15:08:40.075825 2021] [wsgi:error] [pid 575443:tid
> >>> 139757777291008] [remote 89.210.199.119:13389] ImportError: cannot
> >>> import name 'run'
> >>> --
> >>> https://mail.python.org/mailman/listinfo/python-list
> >>>
> >>
[nikos@superhost wsgi]$ flask run
* Serving Flask app 'www.py' (lazy loading)
* Environment: DEVELOPMENT
* 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 run, route, request, redirect
ImportError: cannot import name 'run'
What can you undestand out this that?
File "/usr/local/lib/python3.6/site-packages/flask/cli.py", line 256, in
locate_app
__import__(module_name)
--
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