From a5d134b1e10436e7b2e611ea95d208c758db65f6 Mon Sep 17 00:00:00 2001 From: Philipp Rudiger Date: Wed, 9 Mar 2016 22:57:51 +0000 Subject: [PATCH] Improved GridColumns validation --- holoviews/core/data.py | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/holoviews/core/data.py b/holoviews/core/data.py index 62d3a375b3..aa9be65eb6 100644 --- a/holoviews/core/data.py +++ b/holoviews/core/data.py @@ -1352,6 +1352,18 @@ def reshape(cls, eltype, data, kdims, vdims): if vdims is None: vdims = eltype.vdims + if not vdims: + raise ValueError('GridColumns interface requires at least ' + 'one value dimension.') + + dimensions = [d.name if isinstance(d, Dimension) else + d for d in kdims + vdims] + if isinstance(data, tuple): + data = {d: v for d, v in zip(dimensions, data)} + else): + raise ValueError('GridColumns must be instantiated as a ' + 'dictionary or tuple') + if 'vdims' in data: vdim_array = data.pop('vdims') for i, vdim in enumerate(vdims):