Call and Run PyQGIS script by plugin

Question

I wrote a code that work well in console python, an example:

from qgis.core import QgsProject, QgsLayerTreeGroup, QgsLayerTreeLayer, QgsLayerTree
from PyQt5.QtCore import Qt, QVariant, QSettings, QTranslator, qVersion,
QCoreApplication
from PyQt5 import QtGui
from PyQt5.QtGui import QAction, QIcon, QFileDialog, QProgressDialog, QProgressBar, QShortcut, QKeySequence
from osgeo import ogr
from shutil import copyfile
from urllib.request import urlopen
import re
import processing, glob, os, time
newLyrName1 = '1_PdR da controllare 4326'
newLyrName2 = '2_PdR attivi da controllare 4326'
#definisco il progressivo delle operazioni
m=0
n=0
#Definisco il nome dei campi da utilizzare come variabili
fieldX = 'X_COORD'
fieldY = 'Y_COORD'
m=m+1
n=0
#creo un popup che richiede una risposta
msgBOX = QtGui.QMessageBox.question(iface.mainWindow(), '',#titolo
    str(m) + " - Importare i PdR da file excel?", #messaggi
    QtGui.QMessageBox.Yes, QtGui.QMessageBox.No) #pulsanti

And I saved it in a file called "importXLS.py" stored in a folder "script". Then I built a plugin with a custom toolbar.

Now, what I want to do is that when I press a button it call and execute a pyqgis script inside a console python but, for now, I can only open a console python but I cannot execute nothing inside it.

score 2 · Answer 1 · answered Aug 29 '23 at 10:57

2

Add the following line to the imports of the plugin file.

from pathlib import Path # import section

Then use the next lines in the code that will run when the button is clicked.

python_file_path = "c:/test/importXLS.py"
exec(Path(python_file_path ).read_text())

answered Aug 29 '23 at 10:57

Kadir Şahbaz

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Excuse me because I'm newbie... What you mean to "import section"? Above the first class? o under def init(self, iface):? I tried above first class, but nothin happens... – freecma80 Aug 30 '23 at 12:41
Top lines of a Python file are known as import section containing the words of import and from – Kadir Şahbaz Aug 30 '23 at 17:12
As you suggested I added the in the first part of the code, before class declaration. then I wrote the code under run definition with right path. Restarting QGis it don't give me and error pressing on button, but it not start the <QtGui.QMessageBox.question> so I cannot understad if something gone wrong, what is, and where – freecma80 Aug 31 '23 at 09:55
Ok... now I know what's going wrong. Your code works well, but the code on the file path must have the syntax of qgis plugin. The problem is that the cose is writted for python console syntax and, because is very long and complex, I cannot translate it. So there's a way to use it as i do in python console? – freecma80 Aug 31 '23 at 10:15

score 0 · Accepted Answer · edited Oct 04 '23 at 23:21

Looking around, I found this post: How to call QgisInterface class in a plugin. It helps me having and idea: first I changed iface before call and run a script:

Then anytime, when the script is called and run by QGis, if on console python QGis advised me that it cannot run the script because a function is not defined:

I will add it at the start of the code that I call by plugin script:

In that way I can run python console scripts by QGis plugin.

Call and Run PyQGIS script by plugin

2 Answers2