fix(gis)!: NameErrors in gis_interface (#99)

nesta_ds_utils/loading_saving/gis_interface.py

@@ -6,42 +6,40 @@
 
     _gis_enabled = True
 
-except ImportError:
+    def _gdf_to_fileobj(df_data: GeoDataFrame, path_to: str, **kwargs) -> BytesIO:
+        """Convert GeoDataFrame into bytes file object.
+
+        Args:
+            df_data (gpd.DataFrame): Dataframe to convert.
+            path_to (str): Saving file name.
+
+        Returns:
+            io.BytesIO: Bytes file object.
+        """
+        buffer = BytesIO()
+        if fnmatch(path_to, "*.geojson"):
+            df_data.to_file(buffer, driver="GeoJSON", **kwargs)
+        else:
+            raise NotImplementedError(
+                "Uploading geodataframe currently supported only for 'geojson'."
+            )
+        buffer.seek(0)
+        return buffer
+
+    def _fileobj_to_gdf(fileobj: BytesIO, path_from: str, **kwargs) -> GeoDataFrame:
+        """Convert bytes file object into geodataframe.
+
+        Args:
+            fileobj (io.BytesIO): Bytes file object.
+            path_from (str): Path of loaded data.
+
+        Returns:
+            gpd.DataFrame: Data as geodataframe.
+        """
+        if fnmatch(path_from, "*.geojson"):
+            return GeoDataFrame.from_features(
+                load_json(fileobj.getvalue().decode())["features"]
+            )
+
+except (NameError, ImportError):
     _gis_enabled = False
-
-
-def _gdf_to_fileobj(df_data: GeoDataFrame, path_to: str, **kwargs) -> BytesIO:
-    """Convert GeoDataFrame into bytes file object.
-
-    Args:
-        df_data (gpd.DataFrame): Dataframe to convert.
-        path_to (str): Saving file name.
-
-    Returns:
-        io.BytesIO: Bytes file object.
-    """
-    buffer = BytesIO()
-    if fnmatch(path_to, "*.geojson"):
-        df_data.to_file(buffer, driver="GeoJSON", **kwargs)
-    else:
-        raise NotImplementedError(
-            "Uploading geodataframe currently supported only for 'geojson'."
-        )
-    buffer.seek(0)
-    return buffer
-
-
-def _fileobj_to_gdf(fileobj: BytesIO, path_from: str, **kwargs) -> GeoDataFrame:
-    """Convert bytes file object into geodataframe.
-
-    Args:
-        fileobj (io.BytesIO): Bytes file object.
-        path_from (str): Path of loaded data.
-
-    Returns:
-        gpd.DataFrame: Data as geodataframe.
-    """
-    if fnmatch(path_from, "*.geojson"):
-        return GeoDataFrame.from_features(
-            load_json(fileobj.getvalue().decode())["features"]
-        )