Python console editor warning: "ResourceWarning: unclosed file"

[agiudiceandrea]

What is the bug or the crash?

Using QGIS 3.34.5 or QGIS 3.36.1 on Windows, when an unsaved Python script in the Python console editor is executed, the following warning is displayed in the Log Messages panel:

WARNING    warning:C:\OS4406~1/apps/qgis-ltr/./python\console\console_editor.py:303: ResourceWarning: unclosed file 
              name = tempfile.NamedTemporaryFile(delete=False).name
             
             traceback: File "C:\OS4406~1/apps/qgis-ltr/./python\console\console.py", line 660, in runScriptEditor
              self.tabEditorWidget.currentWidget().runScriptCode()
              File "C:\OS4406~1/apps/qgis-ltr/./python\console\console_editor.py", line 326, in runScriptCode
              filename = self.createTempFile()
              File "C:\OS4406~1/apps/qgis-ltr/./python\console\console_editor.py", line 303, in createTempFile
              name = tempfile.NamedTemporaryFile(delete=False).name

Steps to reproduce the issue

1. Open the Python console editor
2. type: print('test')
3. click the "Run Script" button

Versions

QGIS version
3.34.5-Prizren
QGIS code revision
4b30849
Qt version
5.15.3
Python version
3.9.18
GDAL/OGR version
3.8.4
PROJ version
9.3.1
EPSG Registry database version
v10.098 (2023-11-24)
GEOS version
3.12.1-CAPI-1.18.1
SQLite version
3.41.1
PDAL version
2.6.0
PostgreSQL client version
16.2
SpatiaLite version
5.1.0
QWT version
6.1.6
QScintilla2 version
2.13.4
OS version
Windows 10 Version 1903

Active Python plugins
qgis2web
3.19.0
db_manager
0.1.20
grassprovider
2.12.99
MetaSearch
0.3.6
processing
2.12.99

Supported QGIS version

• I'm running a supported QGIS version according to the roadmap.

New profile

• I tried with a new QGIS profile

Additional context

The warning was not displayed using QGIS 3.28.15.
It seems the warning is displayed since QGIS 3.30.

[nyalldawson]

Not an issue in 3.38