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edited May 22, 2018 at 19:52

PolyGeo ♦

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Create a Creating shapefile in a standalone script using PyQGIS?

Removed tag prefix from question title as per Jeff Atwood style preference

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edited May 20, 2018 at 19:36

underdark

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QGIS 3.0.2 : create Create a shapefile in a standalone script

I'm trying to write a standalone script that writes a shapefile (using QGIS 3.0.2). I've tried something like :

from qgis.core import *
from qgis.PyQt.QtCore import QVariant
from qgis.utils import QGis


QgsApplication.setPrefixPath("/usr/bin/qgis", True)
qgs = QgsApplication([], False)

qgs.initQgis()

fields = QgsFields()
fields.append(QgsField("ID_HYD", QVariant.Int))
fields.append(QgsField("SBD_KM2", QVariant.Double))


writer = QgsVectorFileWriter("/home/sylvain/test.shp",
                             "CP1250",
                             fields,
                             QGis.WKBPoint,
                             None,
                             "ESRI Shapefile")
      
qgs.exitQgis()

The issue is as follow :

/usr/bin/python3.5 /home/sylvain/test.py
Must construct a QGuiApplication first.

Process finished with exit code 1

Is there a way to write a shapefile on drive without constructing a GUIApplication ?

If not, how should I do do create such an item ?

QGIS 3.0.2 : create a shapefile in a standalone script

I'm trying to write a standalone script that writes a shapefile. I've tried something like :

from qgis.core import *
from qgis.PyQt.QtCore import QVariant
from qgis.utils import QGis


QgsApplication.setPrefixPath("/usr/bin/qgis", True)
qgs = QgsApplication([], False)

qgs.initQgis()

fields = QgsFields()
fields.append(QgsField("ID_HYD", QVariant.Int))
fields.append(QgsField("SBD_KM2", QVariant.Double))


writer = QgsVectorFileWriter("/home/sylvain/test.shp",
                             "CP1250",
                             fields,
                             QGis.WKBPoint,
                             None,
                             "ESRI Shapefile")
      
qgs.exitQgis()

The issue is as follow :

/usr/bin/python3.5 /home/sylvain/test.py
Must construct a QGuiApplication first.

Process finished with exit code 1

Is there a way to write a shapefile on drive without constructing a GUIApplication ?

If not, how should I do do create such an item ?

Create a shapefile in a standalone script

I'm trying to write a standalone script that writes a shapefile (using QGIS 3.0.2). I've tried something like :

from qgis.core import *
from qgis.PyQt.QtCore import QVariant
from qgis.utils import QGis


QgsApplication.setPrefixPath("/usr/bin/qgis", True)
qgs = QgsApplication([], False)

qgs.initQgis()

fields = QgsFields()
fields.append(QgsField("ID_HYD", QVariant.Int))
fields.append(QgsField("SBD_KM2", QVariant.Double))


writer = QgsVectorFileWriter("/home/sylvain/test.shp",
                             "CP1250",
                             fields,
                             QGis.WKBPoint,
                             None,
                             "ESRI Shapefile")
      
qgs.exitQgis()

The issue is as follow :

/usr/bin/python3.5 /home/sylvain/test.py
Must construct a QGuiApplication first.

Process finished with exit code 1

Is there a way to write a shapefile on drive without constructing a GUIApplication ?

If not, how should I do do create such an item ?

deleted 51 characters in body

Source Link

edited May 20, 2018 at 9:02

PolyGeo ♦

65.4k
29
114
345

I'm trying to write a standalone script that writes a shapefile. I've tried something like :

from qgis.core import *
from qgis.PyQt.QtCore import QVariant
from qgis.utils import QGis


QgsApplication.setPrefixPath("/usr/bin/qgis", True)
qgs = QgsApplication([], False)

qgs.initQgis()

fields = QgsFields()
fields.append(QgsField("ID_HYD", QVariant.Int))
fields.append(QgsField("SBD_KM2", QVariant.Double))


writer = QgsVectorFileWriter("/home/sylvain/test.shp",
                             "CP1250",
                             fields,
                             QGis.WKBPoint,
                             None,
                             "ESRI Shapefile")
      
qgs.exitQgis()

The issue is as follow :

/usr/bin/python3.5 /home/sylvain/test.py
Must construct a QGuiApplication first.

Process finished with exit code 1

Is there a way to write a shapefile on drive without constructing a GUIApplication ? If

If not, how should I do do create such an item ?

Thanks for any information.

All the best, S.

I'm trying to write a standalone script that writes a shapefile. I've tried something like :

from qgis.core import *
from qgis.PyQt.QtCore import QVariant
from qgis.utils import QGis


QgsApplication.setPrefixPath("/usr/bin/qgis", True)
qgs = QgsApplication([], False)

qgs.initQgis()

fields = QgsFields()
fields.append(QgsField("ID_HYD", QVariant.Int))
fields.append(QgsField("SBD_KM2", QVariant.Double))


writer = QgsVectorFileWriter("/home/sylvain/test.shp",
                             "CP1250",
                             fields,
                             QGis.WKBPoint,
                             None,
                             "ESRI Shapefile")
      
qgs.exitQgis()

The issue is as follow :

/usr/bin/python3.5 /home/sylvain/test.py
Must construct a QGuiApplication first.

Process finished with exit code 1

Is there a way to write a shapefile on drive without constructing a GUIApplication ? If not, how should I do do create such an item ?

Thanks for any information.

All the best, S.

I'm trying to write a standalone script that writes a shapefile. I've tried something like :

from qgis.core import *
from qgis.PyQt.QtCore import QVariant
from qgis.utils import QGis


QgsApplication.setPrefixPath("/usr/bin/qgis", True)
qgs = QgsApplication([], False)

qgs.initQgis()

fields = QgsFields()
fields.append(QgsField("ID_HYD", QVariant.Int))
fields.append(QgsField("SBD_KM2", QVariant.Double))


writer = QgsVectorFileWriter("/home/sylvain/test.shp",
                             "CP1250",
                             fields,
                             QGis.WKBPoint,
                             None,
                             "ESRI Shapefile")
      
qgs.exitQgis()

The issue is as follow :

/usr/bin/python3.5 /home/sylvain/test.py
Must construct a QGuiApplication first.

Process finished with exit code 1

Is there a way to write a shapefile on drive without constructing a GUIApplication ?

If not, how should I do do create such an item ?

added 51 characters in body

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edited May 18, 2018 at 14:18

sylther

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Tweeted twitter.com/StackGIS/status/997469735041273862

occurred May 18, 2018 at 13:31

removed thanks, added pyqgis tag, formatted code

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edited May 18, 2018 at 11:35

Kadir Şahbaz

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added 1 character in body

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edited May 18, 2018 at 11:20

sylther

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asked May 18, 2018 at 9:44

sylther

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Create a Creating shapefile in a standalone script using PyQGIS?

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Create a shapefile in a standalone script