replace shapely with geojson-pydantic

[vincentsarago]

localtileserver/localtileserver/client.py

Lines 108 to 131 in d34356e

	def bounds(
	self, projection: str = "EPSG:4326", return_polygon: bool = False, return_wkt: bool = False
	):
	bounds = get_source_bounds(self.reader, projection=projection)
	extent = (bounds["bottom"], bounds["top"], bounds["left"], bounds["right"])
	if not return_polygon and not return_wkt:
	return extent
	# Safely import shapely
	try:
	from shapely.geometry import Polygon
	except ImportError as e: # pragma: no cover
	raise ImportError(f"Please install `shapely`: {e}")
	coords = (
	(bounds["left"], bounds["top"]),
	(bounds["left"], bounds["top"]),
	(bounds["right"], bounds["top"]),
	(bounds["right"], bounds["bottom"]),
	(bounds["left"], bounds["bottom"]),
	(bounds["left"], bounds["top"]), # Close the loop
	)
	poly = Polygon(coords)
	if return_wkt:
	return poly.wkt
	return poly

with geojson-pydantic (which only depends on pydantic, which you already depends on with rio-tiler) you could do

from geojson_pydantic import Polygon

def bounds(
    self, projection: str = "EPSG:4326", return_polygon: bool = False, return_wkt: bool = False
):
    bounds = get_source_bounds(self.reader, projection=projection)
    extent = (bounds["bottom"], bounds["top"], bounds["left"], bounds["right"])
    if not return_polygon and not return_wkt:
        return extent
    
    poly = Polygon.from_bounds(*extent)
    if return_wkt:
        return poly.wkt
    
    return poly

the only thing geojson-pydantic won't cover is the from_wkt in

localtileserver/localtileserver/helpers.py

Lines 106 to 129 in d34356e

	def parse_shapely(context):
	"""Convert GeoJSON-like or WKT to shapely object.
	Parameters
	----------
	context : str, dict
	a GeoJSON-like dict, which provides a "type" member describing the type
	of the geometry and "coordinates" member providing a list of coordinates,
	or an object which implements __geo_interface__.
	If a string, falls back to inferring as Well Known Text (WKT).
	"""
	try:
	from shapely.geometry import shape
	import shapely.wkb
	import shapely.wkt
	except ImportError as e: # pragma: no cover
	raise ImportError(f"Please install `shapely`: {e}")
	if isinstance(context, str):
	# Infer as WKT
	return shapely.wkt.loads(context)
	elif isinstance(context, bytes):
	# Infer as WKB
	return shapely.wkb.loads(context)
	return shape(context)

[banesullivan]

Awesome!! Thanks for posting this! I'll definitely make this change to simplify the dependency tree