According to the Python wrapper documentation, I can pass Python string list to methods that take std::vector<std::string> (or as reference/const reference) as input. This works very nicely, except when we have multiple methods with the same name.
Example of correct python wrapping
C++ header:
bool Test(const std::vector<std::string>& values);
Usage in Python:
>>> slicer.modules.segmentations.logic().Test(["aaa", "bbb", "ttt"])
True
→ Works well.
Example of incorrect python wrapping
C++ header:
bool Test(const std::vector<std::string>& values);
bool Test(vtkStringArray* values);
Usage in Python:
>>> slicer.modules.segmentations.logic().Test(["aaa", "bbb", "ttt"])
Traceback (most recent call last):
File "<console>", line 1, in <module>
TypeError: arguments do not match any overloaded methods
>>> help(slicer.modules.segmentations.logic().Test)
Help on built-in function Test:
Test(...) method of vtkSlicerSegmentationsModuleLogic.vtkSlicerSegmentationsModuleLogic instance
V.Test(Stvector_ISt6stringE) -> bool
C++: static bool Test(const std::vector<std::string> values)
V.Test(vtkStringArray) -> bool
C++: static bool Test(vtkStringArray *values)
→ The same method is now not found.
Failure to use overloaded methods is an issue because for many methods we added alternative versions that use vtkStringArray instead of std::vector<std::string> for Python compatibility. Now these alternative versions seem to break the wrapping.
@dgobbi Is this error known and/or expected? Could you check if this could be fixed easily?