As stated in the title, I have a class called TestLandCover which won’t instantiate using the from_geotiff @classmethod because it supposedly only takes 1 positional argument. However, the init method takes 6 arguments.

Here is the class:
`
import rasterio
from rasterio.mask import mask

class TestLandCover():
def init(self, raster, transform, crs, name, nodata):
self.raster = raster
self.transform = transform
self.crs = crs
self.name = name
self.nodata = nodata

@classmethod
def from_geotiff(cls, geotiff_path, name=None, nodata=np.nan, mask_gdf=None):
    
    with rasterio.open(geotiff_path) as src:
        crs = src.crs
        print(f'CRS line 418: {crs}')
        transform = src.transform

        if mask_gdf is not None:
            if 'geometry' in mask_gdf:
                geometries = mask_gdf.geometry.tolist()
            else:
                raise ValueError("The provided GeoDataFrame does not have a 'geometry' column.")
            
            # Mask the raster data using the provided geometries
            data, out_trans = mask(src, geometries, crop=True, nodata=nodata)
            
            # Ensure data is in a 2D array format (first band)
            data = data[0]
        else:
            data = src.read(1)
            out_trans = transform

    return cls(data, out_trans, crs, name, nodata)`

However when I instantiate the class like this:

landcover_test = TestLandCover.from_geotiff(geotiff_path='input_data/NELandcover/ukregion-northeastengland.tif', mask_gdf=area_of_interst.gdf, nodata=0, name='landcover_test')

I am receiving this error:

Traceback (most recent call last):
File “c:projecosys-oppo-modelmodel.py”, line 432, in
landcover_test = TestLandCover.from_geotiff(geotiff_path=’input_data/NELandcover/ukregion-northeastengland.tif’, mask_gdf=area_of_interst.gdf, nodata=0, name=’landcover_test’)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “c:projecosys-oppo-modelclasses.py”, line 670, in from_geotiff
return cls(data, out_trans, crs, name, nodata)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: TestLandCover.init() takes 1 positional argument but 6 were given

This problem arose after I refactored some code and interestingly, the old parent class which TestLandCover used to inherit from which has the same from_geotiff @classmethod does instatntiate correctly:

`class RasterData(DataLayer):
def init(self, raster=None, transform=None, crs=None, nodata=None, name=None):
print(f’Initializing RasterData with raster={raster}, transform={transform}, crs={crs}, nodata={nodata}, name={name}’)
#super().init()
self.raster = raster
self.transform = transform
self.crs = crs
self.nodata = nodata
self.name = name

@classmethod
def from_geotiff(cls, geotiff_path, name=None, nodata=np.nan, mask_gdf=None):
    
    with rasterio.open(geotiff_path) as src:
        crs = src.crs
        print(f'CRS line 418: {crs}')
        transform = src.transform
        print(f'Transform line 420: {transform}')

        if mask_gdf is not None:
            if 'geometry' in mask_gdf:
                geometries = mask_gdf.geometry.tolist()
            else:
                raise ValueError("The provided GeoDataFrame does not have a 'geometry' column.")
            
            # Mask the raster data using the provided geometries
            data, out_trans = mask(src, geometries, crop=True, nodata=nodata)
            print(f'out_trans: {out_trans}')
            
            # Ensure data is in a 2D array format (first band)
            data = data[0]
        else:
            data = src.read(1)
            out_trans = transform

    return cls(raster=data, transform=out_trans, crs=crs, name=name, nodata=nodata)

`

I can’t see any reason why that would work and yet the TestLandCover wouldn’t. To instantiate it I am just swapping out the TestLandCover for RasterData. RasterData works, TestLandCover doesn’t.

I’m beginning to think this is a bug but would appreciate anyone else’s input.

Also I have discovered that if I just define the lass in the Python 2 style like

class TestLandCover: def __init__(self, raster, transform, crs, name, nodata): self.raster = raster self.transform = transform self.crs = crs self.name = name self.nodata = nodata

It works but I don’t see why and I do want the class to inherit from RasterData which If I set up it doesn’t work again.