QGIS Python API issue test Gist

ne_110m_land.geojson

run_tests.sh

#!/bin/bash

SCRIPT=./test_qgis.py

echo "Turning off error checking ('set +e')"
set +e
echo "Trying to run '$SCRIPT'"
python $SCRIPT
echo "Hey we made it despite segfault..."

echo "------------------------------"

echo "Turning on error checking ('set -e')"
set -e
echo "Trying to run '$SCRIPT' -- see you on other side?"
python $SCRIPT
echo "You won't see this..."

test_qgis.py

#!/usr/bin/env python
import os, sys

HERE = os.path.dirname(os.path.abspath(__file__))
f = os.path.join(HERE, 'ne_110m_land.geojson')

def test():
    from qgis.core import QgsApplication, QgsProcessingFeedback, QgsVectorLayer

    app = QgsApplication([], False)
    app.initQgis()

    vl = QgsVectorLayer(f)
    valid = vl.isValid()
    print('Valid?', valid)
    if not valid:
        print('Could not even validate the vector file... '
              'you have bigger problems')
        sys.exit(1)
    else:
        print('Feature count?', vl.featureCount())

    app.exitQgis()
    print('Ran `app.exitQgis()`')
    app.exit()
    print('Ran `app.exit()`')


if __name__ == '__main__':
    test()
    print('Will be done if it does not segfault')