Python module import problem

Question

I am with a proble, use Python 3.6.7 I am making a Flask application with the following structure:

   /app
    /arquivospy
        consultaMercados.py
        definirMercados.py
        interfaceBD.py
        main.py

        outros arquivos py

    /static
    /templates    
    app.py
    form.py

inside the /file folder has some py scripts that I use to read a TXT and register in the BD generate some media make an account and save in the BD have BD query scripts, have the main.py file that I use in the same shell, it has a little menuzinho that I inform the name of the TXT file and it automates everything, IE inside the folder /file ta everything working fine.

The problem is with app.py that makes the Flask routes, it matters:

import arquivospy.interfaceBD and this error:

File "app.py", line 7, in 
    import arquivospy.interfaceBD
  File "/home/karont/SiteHtml/app/arquivospy/interfaceBD.py", line 2, in 
    import definirMercados as mercados
ModuleNotFoundError: No module named 'definirMercados'

Answer 1

Hello, good morning! All right?

# O seu módulo interfaceBD está importando definirMercados
File "/home/karont/SiteHtml/app/arquivospy/interfaceBD.py", line 2, in
import definirMercados as mercados
# Aqui ele diz que não conseguiu encontrar o módulo definirMercados que foi importado
ModuleNotFoundError: No module named 'definirMercados'

Try to import the module definirMercados inside the archive interfaceBD.py the same way you did inside the app py., that is, try to change your import line to:

import arquivospy.definirMercados as mercados

[EDITED]
When you insert an import into the module, this import is relative to the root directory from which you are running your application.
If you enter the directory arquivospy with the shell and tries to run the main py. from it, then all imports present in the main py. try to search the modules from this directory, so the
import arquivospy.definirMercados
does not work inside the directory where the main py..

Two possible solutions are:

1. Move the file main py. to the same directory where the app py. in order to execute you from this location;
2. Execute the main py. in the terminal from the directory where the app py.;