diff --git a/emg3d/inversion/pygimli.py b/emg3d/inversion/pygimli.py
index 23cfb4f7..b4d7f529 100644
--- a/emg3d/inversion/pygimli.py
+++ b/emg3d/inversion/pygimli.py
@@ -23,18 +23,17 @@
 # the License.
 import numpy as np
 
+from emg3d import utils, _multiprocessing
+
 try:
     import pygimli
+    # Add pygimli and pgcore to the emg3d.Report().
+    utils.OPTIONAL.extend(['pygimli', 'pgcore'])
 except ImportError:
     pygimli = None
 
-from emg3d import utils, _multiprocessing
-
 __all__ = ['Kernel', 'Inversion']
 
-# Add pygimli and pgcore to the emg3d.Report().
-utils.OPTIONAL.extend(['pygimli', 'pgcore'])
-
 
 def __dir__():
     return __all__
@@ -235,7 +234,7 @@ def fullmodel(self):
             self._fullmodel = True
             if self.regionProperties():
                 keys = ['background', 'fix', 'single']
-                for n, v in self.regionProperties().items():
+                for v in self.regionProperties().values():
                     if np.any([v[k] is True for k in keys]):
                         self._fullmodel = False
                         break
diff --git a/tests/test_pygimli.py b/tests/test_pygimli.py
index 0df7b021..f39359ee 100644
--- a/tests/test_pygimli.py
+++ b/tests/test_pygimli.py
@@ -4,6 +4,7 @@
 from numpy.testing import assert_allclose
 
 import emg3d
+from emg3d import inversion
 from emg3d.inversion import pygimli as ipygimli
 
 
@@ -190,4 +191,5 @@ def test_Inversion_regions(self, caplog):
 
 
 def test_all_dir():
+    assert set(inversion.__all__) == set(dir(inversion))
     assert set(ipygimli.__all__) == set(dir(ipygimli))
diff --git a/tests/test_utils.py b/tests/test_utils.py
index ddae596e..b409673c 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -6,6 +6,14 @@
 import scooby
 from emg3d import utils
 
+try:
+    import pygimli
+    from emg3d.inversion import pygimli
+    add = ['pygimli', 'pgcore']
+except ImportError:
+    pygimli = None
+    add = []
+
 
 def test_known_class():
     @utils._known_class
@@ -36,7 +44,7 @@ def test_Report(capsys):
     out2 = scooby.Report(
             core=['numpy', 'scipy', 'numba', 'emg3d', 'empymod'],
             optional=['empymod', 'xarray', 'discretize', 'h5py',
-                      'matplotlib', 'tqdm', 'IPython'],
+                      'matplotlib', 'tqdm', 'IPython'] + add,
             ncol=4)
 
     # Ensure they're the same; exclude time to avoid errors.