Make async earthranger client optional (#237)

Co-authored-by: Charles Stern <[email protected]>

ecoscope/io/__init__.py

@@ -1,15 +1,20 @@
 from ecoscope.io import earthranger, eetools, raster, utils
 from ecoscope.io.earthranger import EarthRangerIO
-from ecoscope.io.async_earthranger import AsyncEarthRangerIO
 from ecoscope.io.utils import download_file
 
 __all__ = [
     "earthranger",
     "EarthRangerIO",
-    "AsyncEarthRangerIO",
     "download_file",
     "earthranger_utils",
     "eetools",
     "raster",
     "utils",
 ]
+
+try:
+    from ecoscope.io.async_earthranger import AsyncEarthRangerIO
+
+    __all__ += ["AsyncEarthRangerIO"]
+except ImportError:
+    pass

ecoscope/io/async_earthranger.py

@@ -3,11 +3,18 @@
 import pandas as pd
 import asyncio
 from dateutil import parser
-from erclient.client import AsyncERClient
+
+import ecoscope
 from ecoscope.io.utils import to_hex
 from ecoscope.io.earthranger_utils import clean_kwargs, to_gdf
 
-import ecoscope
+try:
+    from erclient.client import AsyncERClient
+except ModuleNotFoundError:
+    raise ModuleNotFoundError(
+        'Missing optional dependencies required by this module. \
+         Please run pip install ecoscope["async_earthranger"]'
+    )
 
 
 class AsyncEarthRangerIO(AsyncERClient):

pyproject.toml

@@ -25,7 +25,7 @@ classifiers=[
 dependencies = [
     "backoff",
     "earthengine-api",
-    "earthranger-client @ git+https://github.com/PADAS/[email protected]",
+    "earthranger-client",
     "geopandas<=0.14.2",
     "pyproj",
     "rasterio",
@@ -50,6 +50,9 @@ analysis = [
     "scikit-image",
     "scikit-learn",
 ]
+async_earthranger = [
+    "earthranger-client @ git+https://github.com/PADAS/[email protected]",
+]
 mapping = [
     "lonboard @ git+https://github.com/wildlife-dynamics/lonboard@77c56d30a9c2dd96fd863e910bf62952cfa36da8",
     "matplotlib",