Remove mention of --output

rasterio/rio/helpers.py

@@ -87,7 +87,7 @@ def resolve_inout(input=None, output=None, files=None, force_overwrite=False):
             resolved_output):
         raise FileOverwriteError(
             "file exists and won't be overwritten without use of the "
-            "`--force-overwrite` or `--output` options.")
+            "`--force-overwrite` option.")
     resolved_inputs = (
         [input] if input else [] +
         list(files[:-1 if not output else None]) if files else [])

rasterio/warp.py

@@ -12,12 +12,12 @@
 from rasterio._warp import (
     _transform_geom, _reproject, _calculate_default_transform)
 from rasterio.enums import Resampling
-from rasterio.env import ensure_env
+from rasterio.env import ensure_env, Env
 from rasterio.transform import guard_transform
 
 
 @ensure_env
-def transform(src_crs, dst_crs, xs, ys, zs=None):
+def transform(src_crs, dst_crs, xs, ys, zs=None, **options):
     """Transform vectors from source to target coordinate reference system.
 
     Transform vectors of x, y and optionally z from source
@@ -43,7 +43,8 @@ def transform(src_crs, dst_crs, xs, ys, zs=None):
     Tuple of x, y, and optionally z vectors, transformed into the target
     coordinate reference system.
     """
-    return _transform(src_crs, dst_crs, xs, ys, zs)
+    with Env(**options):
+        return _transform(src_crs, dst_crs, xs, ys, zs)
 
 
 @ensure_env