Demonstrate stupid sphinx links in code.rst

docs/source/code.rst

-.. currentmodule:: nifty5
 
 =============
 Code Overview
@@ -37,9 +36,12 @@ Domains
 Abstract base class
 -------------------
 
+.. currentmodule:: nifty5.domains.domain
+
 One of the fundamental building blocks of the NIFTy5 framework is the *domain*.
-Its required capabilities are expressed by the abstract :class:`Domain` class.
+Its required capabilities are expressed by the abstract :py:class:`Domain` class.
 A domain must be able to answer the following queries:
+m
 
 - its total number of data entries (pixels), which is accessible via the
   :attr:`~Domain.size` property
@@ -51,6 +53,8 @@ A domain must be able to answer the following queries:
 Unstructured domains
 --------------------
 
+.. currentmodule:: nifty5.domains.unstructured_domain
+
 Domains can be either *structured* (i.e. there is geometrical information
 associated with them, like position in space and volume factors),
 or *unstructured* (meaning that the data points have no associated manifold).
@@ -62,6 +66,8 @@ Unstructured domains can be described by instances of NIFTy's
 Structured domains
 ------------------
 
+.. currentmodule:: nifty5.domains.structured_domain
+
 In contrast to unstructured domains, these domains have an assigned geometry.
 NIFTy requires them to provide the volume elements of their grid cells.
 The additional methods are specified in the abstract class
@@ -81,15 +87,17 @@ The additional methods are specified in the abstract class
 
 NIFTy comes with several concrete subclasses of :class:`StructuredDomain`:
 
-- :class:`RGSpace` represents a regular Cartesian grid with an arbitrary
+.. currentmodule:: nifty5.domains
+
+- :class:`rg_space.RGSpace` represents a regular Cartesian grid with an arbitrary
   number of dimensions, which is supposed to be periodic in each dimension.
-- :class:`HPSpace` and :class:`GLSpace` describe pixelisations of the
-  2-sphere; their counterpart in harmonic space is :class:`LMSpace`, which
+- :class:`hp_space.HPSpace` and :class:`gl_space.GLSpace` describe pixelisations of the
+  2-sphere; their counterpart in harmonic space is :class:`lm_space.LMSpace`, which
   contains spherical harmonic coefficients.
-- :class:`PowerSpace` is used to describe one-dimensional power spectra.
+- :class:`power_space.PowerSpace` is used to describe one-dimensional power spectra.
 
-Among these, :class:`RGSpace` can be harmonic or not (depending on constructor arguments), :class:`GLSpace`, :class:`HPSpace`, and :class:`PowerSpace` are
-pure position domains (i.e. nonharmonic), and :class:`LMSpace` is always
+Among these, :class:`rg_space.RGSpace` can be harmonic or not (depending on constructor arguments), :class:`gl_space.GLSpace`, :class:`hp_space.HPSpace`, and :class:`power_space.PowerSpace` are
+pure position domains (i.e. nonharmonic), and :class:`lm_space.LMSpace` is always
 harmonic.