Add interface of sandbox.gpuarray more similar to sandbox.cuda

theano/sandbox/gpuarray/__init__.py

@@ -54,6 +54,14 @@ if pygpu:
             optdb.add_tags('gpuarray_opt', 'fast_run', 'fast_compile', 'inplace')
         elif config.gpuarray.init_device != '':
             init_dev(config.gpuarray.init_device)
+
+        from .basic_ops import (GpuAlloc, GpuContiguous, GpuEye, GpuFromHost,
+                                GpuJoin, GpuReshape, GpuSplit, HostFromGpu)
+        from .basic_ops import host_from_gpu, gpu_from_host
+        from .elemwise import GpuElemwise
+        from .subtensor import (GpuSubtensor, GpuIncSubtensor,
+                                GpuAdvancedIncSubtensor1)
+
     except Exception:
         error("Could not initialize pygpu, support disabled", exc_info=True)
 else: