removed colorbar key

Author: emmanuelle

packages/python/plotly/plotly/express/_imshow.py

@@ -106,11 +106,10 @@ def imshow(
 
     labels : dict with str keys and str values (default `{}`)
         Overrides names used in the figure for axis titles (keys ``x`` and ``y``),
-        colorbar title (key ``colorbar``) and hover (key ``color``). The values
-        should correspond to the desired label to be displayed. If ``img`` is an
-        xarray, dimension names are used for axis titles, and long name for the
-        colorbar title (unless overridden in ``labels``). Possible keys are:
-        x, y, color and colorbar.
+        colorbar title and hover (key ``color``). The values should correspond
+        to the desired label to be displayed. If ``img`` is an xarray, dimension
+        names are used for axis titles, and long name for the colorbar title
+        (unless overridden in ``labels``). Possible keys are: x, y, and color.
 
     color_continuous_scale : str or list of str
         colormap used to map scalar data to colors (for a 2D image). This parameter is
@@ -169,7 +168,6 @@ def imshow(
     args = locals()
     apply_default_cascade(args)
     img_is_xarray = False
-    colorbar_title = ""
     if xarray_imported:
         if isinstance(img, xarray.DataArray):
             y_label, x_label = img.dims[0], img.dims[1]
@@ -183,7 +181,6 @@ def imshow(
             if aspect is None:
                 aspect = "auto"
             z_name = xarray.plot.utils.label_from_attrs(img).replace("\n", "<br>")
-            colorbar_title = z_name
 
     if labels is not None:
         if "x" in labels:
@@ -192,8 +189,6 @@ def imshow(
             y_label = labels["y"]
         if "color" in labels:
             z_name = labels["color"]
-        if "colorbar" in labels:
-            colorbar_title = labels["colorbar"]
 
     if not img_is_xarray:
         if aspect is None:
@@ -226,7 +221,7 @@ def imshow(
             cmid=color_continuous_midpoint,
             cmin=range_color[0],
             cmax=range_color[1],
-            colorbar=dict(title=colorbar_title),
+            colorbar=dict(title=z_name),
         )
 
     # For 2D+RGB data, use Image trace