diff --git a/kibot/gs.py b/kibot/gs.py
index 4de989a3..a0f5858b 100644
--- a/kibot/gs.py
+++ b/kibot/gs.py
@@ -267,9 +267,9 @@ class GS(object):
     @staticmethod
     def load_board():
         """ Will be repplaced by kiplot.py """
-        assert False
+        raise AssertionError()
 
     @staticmethod
     def load_sch():
         """ Will be repplaced by kiplot.py """
-        assert False
+        raise AssertionError()
diff --git a/kibot/kicad/config.py b/kibot/kicad/config.py
index 1421880a..5fba02e9 100644
--- a/kibot/kicad/config.py
+++ b/kibot/kicad/config.py
@@ -109,7 +109,7 @@ class KiConf(object):
     lib_aliases = {}
 
     def __init__(self):
-        assert False, "KiConf is fully static, no instances allowed"
+        raise AssertionError("KiConf is fully static, no instances allowed")
 
     def init(fname):
         """ fname is the base project name, any extension is allowed.
diff --git a/kibot/layer.py b/kibot/layer.py
index 3de162f0..66686ab4 100644
--- a/kibot/layer.py
+++ b/kibot/layer.py
@@ -197,7 +197,7 @@ class Layer(Optionable):
                         raise KiPlotConfigurationError("Unknown layer spec: `{}`".format(layer))
                     new_vals.extend(ext)
             return new_vals
-        assert False, "Unimplemented layer type "+str(type(values))
+        raise AssertionError("Unimplemented layer type "+str(type(values)))
 
     @staticmethod
     def _get_copper():
diff --git a/tests/test_plot/test_int_bom.py b/tests/test_plot/test_int_bom.py
index ea5e4081..de4e5745 100644
--- a/tests/test_plot/test_int_bom.py
+++ b/tests/test_plot/test_int_bom.py
@@ -1256,7 +1256,7 @@ def check_value(rows, r_col, ref, v_col, val):
             assert r[v_col] == val
             logging.debug(ref+'='+val+' OK')
             return
-    assert False, "Failed to find "+ref
+    raise AssertionError("Failed to find "+ref)
 
 
 def test_int_bom_variant_t2b(test_dir):
diff --git a/tests/test_plot/test_print_sch.py b/tests/test_plot/test_print_sch.py
index 89d1df67..f083ac40 100644
--- a/tests/test_plot/test_print_sch.py
+++ b/tests/test_plot/test_print_sch.py
@@ -78,7 +78,7 @@ def check_l1(ctx):
     except SchFileError as e:
         logging.error('At line {} of `{}`: {}'.format(e.line, e.file, e.msg))
         logging.error('Line content: `{}`'.format(e.code))
-        assert False
+        raise AssertionError()
     comps = sch.get_components()
     l1 = next(c for c in comps if c.ref == 'L1')
     assert l1