How to get raster resolution using GDAL

I’m using gdal lib for Python in a Jupyter Notebook environment.

I’d like to retrieve the resolution of a raster to use it in a gdal.warp call.

At the moment I do the following :

src = gdal.Open(mask)
ulx, xres, xskew, uly, yskew, yres  = src.GetGeoTransform()

but I get too much information. Is there a way to only retreive xres and yres?

import gdal, operator
src = gdal.Open(mask)
xres, yres = operator.itemgetter(1,5)(src.GetGeoTransform())

import gdal
...
src = gdal.Open(mask)
_, xres, _, _, _, yres  = src.GetGeoTransform()