Bug report #17446
QgsVectorFileWriter.writeAsVectorFormat() throws errors
| Status: | Closed | ||
|---|---|---|---|
| Priority: | Normal | ||
| Assignee: | - | ||
| Category: | PyQGIS Console | ||
| Affected QGIS version: | master | Regression?: | No |
| Operating System: | Easy fix?: | No | |
| Pull Request or Patch supplied: | No | Resolution: | invalid |
| Crashes QGIS or corrupts data: | No | Copied to github as #: | 25343 |
Description
I may have missed something, but I checked this https://qgis.org/api/api_break.html and the other tickets and could not find anything about the issue:
Saving a layer as a ShapeFile throws an error:
QgsVectorFileWriter.writeAsVectorFormat(my_layer, output_path, "utf-8", None, "ESRI Shapefile")@
@Traceback (most recent call last):
File "C:\PROGRA~1\QGIS2~1.99\apps\Python36\lib\code.py", line 91, in runcode
exec(code, self.locals)
File "<input>", line 1, in <module>
File "<string>", line 7, in <module>
TypeError: QgsVectorFileWriter.writeAsVectorFormat(): arguments did not match any overloaded call:
overload 1: argument 4 has unexpected type 'NoneType'
overload 2: argument 4 has unexpected type 'NoneType'
overload 3: argument 3 has unexpected type 'str'
This error (just some other "unexcpected" types) happens with GeoJSON, Spatialite, etc... as well. With the latest 2.18 LTR everything works fine.
History
#1
Updated by Even Rouault over 6 years ago
- Resolution set to invalid
- Status changed from Open to Closed
You probably missed:
"""writeAsVectorFormat() now takes a QgsCoordinateTransform reference, not a pointer. An invalid QgsCoordinateTransform should be used instead of a null pointer if no transformation is required.*"""