TypeError: in method 'SpatialReference_ImportFromEPSG', argument 2 of type 'int'

I’m trying to convert the TIFFs from the FAA’s VFR Raster Charts page and I’m getting this error:

Traceback (most recent call last):
  File "/usr/local/bin/gdal2mbtiles", line 11, in <module>
    load_entry_point('gdal2mbtiles==2.1.1', 'console_scripts', 'gdal2mbtiles')()
  File "/home/ryan/.local/lib/python2.7/site-packages/gdal2mbtiles/main.py", line 309, in main
    colors=colors, band=band)
  File "/home/ryan/.local/lib/python2.7/site-packages/gdal2mbtiles/helpers.py", line 194, in warp_mbtiles
    validate_resolutions(resolution=dataset.GetNativeResolution(),
  File "/home/ryan/.local/lib/python2.7/site-packages/gdal2mbtiles/gdal.py", line 497, in GetNativeResolution
    dst_ref = self.GetSpatialReference()
  File "/home/ryan/.local/lib/python2.7/site-packages/gdal2mbtiles/gdal.py", line 463, in GetSpatialReference
    sr = sr.FromEPSG(sr.GetEPSGCode())
  File "/home/ryan/.local/lib/python2.7/site-packages/gdal2mbtiles/gdal.py", line 799, in FromEPSG
    s.ImportFromEPSG(code)
  File "/home/ryan/.local/lib/python2.7/site-packages/osgeo/osr.py", line 1138, in ImportFromEPSG
    return _osr.SpatialReference_ImportFromEPSG(self, *args)
TypeError: in method 'SpatialReference_ImportFromEPSG', argument 2 of type 'int'

Here is the output from gdalinfo -noct test.tif:

Driver: GTiff/GeoTIFF
Files: test.tif
Size is 17921, 12358
Coordinate System is:
PROJCS["Lambert Conformal Conic",
    GEOGCS["NAD83",
        DATUM["North_American_Datum_1983",
            SPHEROID["GRS 1980",6378137,298.2572221010042,
                AUTHORITY["EPSG","7019"]],
            AUTHORITY["EPSG","6269"]],
        PRIMEM["Greenwich",0],
        UNIT["degree",0.0174532925199433],
        AUTHORITY["EPSG","4269"]],
    PROJECTION["Lambert_Conformal_Conic_2SP"],
    PARAMETER["standard_parallel_1",46.66666666666666],
    PARAMETER["standard_parallel_2",41.33333333333334],
    PARAMETER["latitude_of_origin",42.3],
    PARAMETER["central_meridian",-97],
    PARAMETER["false_easting",0],
    PARAMETER["false_northing",0],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]]]
Origin = (-411171.578339697443880,257040.430107307882281)
Pixel Size = (42.335440573740584,-42.334973725198978)
Metadata:
  AREA_OR_POINT=Area
  TIFFTAG_DATETIME=2019:06:21 12:39:53
  TIFFTAG_RESOLUTIONUNIT=2 (pixels/inch)
  TIFFTAG_SOFTWARE=Adobe Photoshop CS5.1 Windows
  TIFFTAG_XRESOLUTION=300
  TIFFTAG_YRESOLUTION=300
Image Structure Metadata:
  COMPRESSION=LZW
  INTERLEAVE=BAND
Corner Coordinates:
Upper Left  ( -411171.578,  257040.430) (102d10'43.70"W, 44d29'57.95"N)
Lower Left  ( -411171.578, -266135.175) (101d47'45.50"W, 39d47'47.93"N)
Upper Right (  347521.852,  257040.430) ( 92d37'16.44"W, 44d31'57.52"N)
Lower Right (  347521.852, -266135.175) ( 92d56'42.51"W, 39d49'38.48"N)
Center      (  -31824.863,   -4547.373) ( 97d23' 9.33"W, 42d15'30.11"N)
Band 1 Block=17921x1 Type=Byte, ColorInterp=Palette
  Color Table (RGB with 256 entries)

I’m using:

Ubuntu 18.04
Python 2.7.15+
pip 9.0.1
gdal2mbtiles 2.1.1
GDAL 2.4.2

[dazza-codes]

I suggest this issue is marked as a bug when using GDAL 3.x and the priority to fix bugs should be high enough for core project developers to attend to it.

[elfmanryan]

Been looking at this today aswell. going back bit earlier, when a Dataset is instantiated (helpers.py, line 193), attempts at calling the method GetSpatialReference() raises an error if the epsg is not recognised by method sr.AutoIdentifyEPSG() (gdal.py, line 458). This is true for the lambert canonical projection on the .tif above. However we catch that error (gdal.py, line 460), and then try to instantiate another SpatialReference obj from epsg 3857 (a.k.a pseudo webmercator) (line 463) - here in lies the final error : ‘argument type 2 is int’ created by the method FromEPSG() (gdal.py line 798) (see below) This method is inherited and same as calling osr.SpatialReference.FromEPSG(3857) which works. so the problem seems to be the way its inherited in our wrapper. apologies if that was convoluted. written at end of the day in a hurry.

class SpatialReference(osr.SpatialReference):
    def __init__(self, *args, **kwargs):
        super(SpatialReference, self).__init__(*args, **kwargs)
        self._angular_transform = None

    @classmethod
    def FromEPSG(cls, code):
        s = cls()
        s.ImportFromEPSG(code) #<--------int error here
        return s`