Error: NeededInitPrefix is not defined

[ryan-salo]

I tried running:

from localtileserver import get_leaflet_tile_layer, TileClient
from ipyleaflet import Map

client = TileClient("/tmp/local.tif")

And got this error:

File ~/miniconda3/envs/localtileserver/lib/python3.11/site-packages/large_image/tilesource/geo.py:230, in GDALBaseFileTileSource.getPixelSizeInMeters(self)
    223 def getPixelSizeInMeters(self):
    224     """
    225     Get the approximate base pixel size in meters.  This is calculated as
    226     the average scale of the four edges in the WGS84 ellipsoid.
    227 
    228     :returns: the pixel size in meters or None.
    229     """
--> 230     bounds = self.getBounds(NeededInitPrefix + 'epsg:4326')
    231     if not bounds:
    232         return

NameError: name 'NeededInitPrefix' is not defined

Env setup:

# conda only used to install env, python, and pip:
mamba create -n localtileserver -c conda-forge python pip
conda activate localtileserver
pip install localtileserver jupyterlab ipyleaflet
#ipyleaflet                0.17.3
#jupyterlab                4.0.1
#localtileserver           0.7.0
#pip                       23.1.2
#python                    3.11.3

Here is the full stack trace

File ~/miniconda3/envs/localtileserver/lib/python3.11/site-packages/localtileserver/client.py:908, in BaseTileClient.__init__(self, filename, default_projection, port, debug, host, client_port, client_host, client_prefix, cors_all)
    906 elif isinstance(filename, RasterioFileTileSource):
    907     filename = filename._getLargeImagePath()
--> 908 super().__init__(filename=filename, default_projection=default_projection)
    909 app = AppManager.get_or_create_app(cors_all=cors_all)
    910 self._key = launch_server(app, port=port, debug=debug, host=host)

File ~/miniconda3/envs/localtileserver/lib/python3.11/site-packages/localtileserver/client.py:482, in LocalTileClient.__init__(self, filename, default_projection)
    476 def __init__(
    477     self,
    478     filename: Union[pathlib.Path, str],
    479     default_projection: Optional[str] = "EPSG:3857",
    480 ):
    481     super().__init__(filename, default_projection)
--> 482     self._tile_source = get_tile_source(self.filename, self.default_projection)

File ~/miniconda3/envs/localtileserver/lib/python3.11/site-packages/localtileserver/client.py:82, in BaseTileClientInterface.default_projection(self)
     79 @property
     80 def default_projection(self):
     81     if self._default_projection == "":
---> 82         self._default_projection = "EPSG:3857" if self.is_geospatial else None
     83     return self._default_projection

File ~/miniconda3/envs/localtileserver/lib/python3.11/site-packages/localtileserver/client.py:433, in BaseTileClientInterface.is_geospatial(self)
    430 @property
    431 def is_geospatial(self):
    432     if self._is_geospatial is None:
--> 433         self._is_geospatial = self.metadata(projection=None).get("geospatial", False)
    434     return self._is_geospatial

File ~/miniconda3/envs/localtileserver/lib/python3.11/site-packages/localtileserver/client.py:603, in LocalTileClient.metadata(self, projection)
    601     if projection == "":
    602         projection = self.default_projection
--> 603     tile_source = get_tile_source(self.filename, projection)
    604     self._metadata[projection] = get_meta_data(tile_source)
    605 return self._metadata[projection]

File ~/miniconda3/envs/localtileserver/lib/python3.11/site-packages/localtileserver/tiler/utilities.py:72, in get_tile_source(path, projection, style, encoding)
     68 def get_tile_source(
     69     path: Union[pathlib.Path, str], projection: str = None, style: str = None, encoding: str = "PNG"
     70 ) -> RasterioFileTileSource:
     71     path = get_clean_filename(path)
---> 72     return RasterioFileTileSource(str(path), projection=projection, style=style, encoding=encoding)

File ~/miniconda3/envs/localtileserver/lib/python3.11/site-packages/large_image/cache_util/cache.py:227, in LruCacheMetaclass.__call__(cls, *args, **kwargs)
    225         except Exception:
    226             pass
--> 227     raise exc
    228 instance._classkey = key
    229 with cacheLock:

File ~/miniconda3/envs/localtileserver/lib/python3.11/site-packages/large_image/cache_util/cache.py:218, in LruCacheMetaclass.__call__(cls, *args, **kwargs)
    216         return result
    217 try:
--> 218     instance = super().__call__(*args, **kwargs)
    219     # for pickling
    220     instance._initValues = (args, kwargs.copy())

File ~/miniconda3/envs/localtileserver/lib/python3.11/site-packages/large_image_source_rasterio/__init__.py:136, in RasterioFileTileSource.__init__(self, path, projection, unitsPerPixel, **kwargs)
    129     self.sourceSizeY = self.sizeY = self.dataset.height
    131 # netCDF is blacklisted from rasterio so it won't be used.
    132 # use the mapnik source if needed. This variable is always ignored
    133 # is_netcdf = False
    134 
    135 # get the different scales and projections from the image
--> 136 scale = self.getPixelSizeInMeters()
    138 # raise an error if we are missing some information about the projection
    139 # i.e. we don't know where to place it on a map
    140 isProjected = self.projection or self.dataset.driver.lower() in {'png'}

File ~/miniconda3/envs/localtileserver/lib/python3.11/site-packages/large_image/tilesource/geo.py:230, in GDALBaseFileTileSource.getPixelSizeInMeters(self)
    223 def getPixelSizeInMeters(self):
    224     """
    225     Get the approximate base pixel size in meters.  This is calculated as
    226     the average scale of the four edges in the WGS84 ellipsoid.
    227 
    228     :returns: the pixel size in meters or None.
    229     """
--> 230     bounds = self.getBounds(NeededInitPrefix + 'epsg:4326')
    231     if not bounds:
    232         return

NameError: name 'NeededInitPrefix' is not defined

[banesullivan]

This was bound to happen with the massive refactor in girder/large_image#1115

Seems I introduced this bug following the refactor in girder/large_image#1182

@ryan-salo, the quick fix on your end is to install pyproj. I'll patch this upstream in large-image though

[banesullivan]

See girder/large_image#1190

[banesullivan]

Fix upstream will be in next large image release. I'm going to leave this open to remember to bump the minimum version here

[banesullivan]

localtileserver>=0.7.1 resolves this issue