diff --git a/experiments/__doc__/doc.py b/experiments/__doc__/doc.py
index 54dee3fb..fd46e0f3 100644
--- a/experiments/__doc__/doc.py
+++ b/experiments/__doc__/doc.py
@@ -5,10 +5,12 @@ def my_decorator(func):
         print("Something is happening after the function is called.")
     return wrapper
 
+
 @my_decorator
 def say_whee():
     print("Whee!")
 
+
 class PP(object):
     """ Class PP bla bla """
     def __init__(self):
diff --git a/experiments/__doc__/macropy/application.py b/experiments/__doc__/macropy/application.py
index cd088a21..f9a7b66a 100644
--- a/experiments/__doc__/macropy/application.py
+++ b/experiments/__doc__/macropy/application.py
@@ -1,4 +1,4 @@
-from mymacros import macros, document
+from mymacros import macros, document  # noqa: F401
 
 with document:
     # comentario a
@@ -9,6 +9,7 @@ with document:
     c = 3
     """ docu c """
 
+
 class d(object):
     def __init__(self):
         with document:
@@ -16,9 +17,8 @@ class d(object):
             """ documenting d.at1 """
 
 
-print("a = "+str(a)+"  # "+_help_a)
-print("b = "+str(b)+"  # "+_help_b)
-print("c = "+str(c)+"  # "+_help_c)
+print("a = "+str(a)+"  # "+_help_a)  # noqa: F821
+print("b = "+str(b)+"  # "+_help_b)  # noqa: F821
+print("c = "+str(c)+"  # "+_help_c)  # noqa: F821
 e = d()
-print("e.at1 = "+str(e.at1)+"  # "+e._help_at1)
-
+print("e.at1 = "+str(e.at1)+"  # "+e._help_at1)  # noqa: F821
diff --git a/experiments/__doc__/macropy/mymacros.py b/experiments/__doc__/macropy/mymacros.py
index d31e816a..b04d37a1 100644
--- a/experiments/__doc__/macropy/mymacros.py
+++ b/experiments/__doc__/macropy/mymacros.py
@@ -1,8 +1,9 @@
 from macropy.core.macros import Macros
-from ast import *
+from ast import (Assign, Name, Attribute, Expr, Num, Str, NameConstant, Load, Store)
 
 macros = Macros()
 
+
 @macros.block
 def document(tree, **kw):
     """ This macro takes literal strings and converts them into:
@@ -19,7 +20,7 @@ def document(tree, **kw):
         # The whole sentence is a string?
         if (isinstance(s, Expr) and isinstance(s.value, Str) and
            # and the previous is an assign
-           isinstance(prev, Assign)):
+           isinstance(prev, Assign)):  # noqa: E128
             # Apply it to the first target
             target = prev.targets[0]
             value = prev.value
diff --git a/experiments/__doc__/macropy/test_mymacros.py b/experiments/__doc__/macropy/test_mymacros.py
index 8cdbd3e8..e5f1e6b7 100755
--- a/experiments/__doc__/macropy/test_mymacros.py
+++ b/experiments/__doc__/macropy/test_mymacros.py
@@ -1,3 +1,3 @@
 #!/usr/bin/python3
-import macropy.activate
-import application
+import macropy.activate  # noqa: F401
+import application       # noqa: F401
diff --git a/experiments/__doc__/mcpy/application.py b/experiments/__doc__/mcpy/application.py
index cd088a21..38084834 100644
--- a/experiments/__doc__/mcpy/application.py
+++ b/experiments/__doc__/mcpy/application.py
@@ -1,4 +1,5 @@
-from mymacros import macros, document
+from mymacros import macros, document  # noqa: F401
+
 
 with document:
     # comentario a
@@ -9,6 +10,7 @@ with document:
     c = 3
     """ docu c """
 
+
 class d(object):
     def __init__(self):
         with document:
@@ -16,9 +18,8 @@ class d(object):
             """ documenting d.at1 """
 
 
-print("a = "+str(a)+"  # "+_help_a)
-print("b = "+str(b)+"  # "+_help_b)
-print("c = "+str(c)+"  # "+_help_c)
+print("a = "+str(a)+"  # "+_help_a)  # noqa: F821
+print("b = "+str(b)+"  # "+_help_b)  # noqa: F821
+print("c = "+str(c)+"  # "+_help_c)  # noqa: F821
 e = d()
-print("e.at1 = "+str(e.at1)+"  # "+e._help_at1)
-
+print("e.at1 = "+str(e.at1)+"  # "+e._help_at1)  # noqa: F821
diff --git a/experiments/__doc__/mcpy/mymacros.py b/experiments/__doc__/mcpy/mymacros.py
index 78961d93..4baf01d1 100644
--- a/experiments/__doc__/mcpy/mymacros.py
+++ b/experiments/__doc__/mcpy/mymacros.py
@@ -1,4 +1,5 @@
-from ast import *
+from ast import (Assign, Name, Attribute, Expr, Num, Str, NameConstant, Load, Store)
+
 
 def document(sentences, to_source, **kw):
     """ This macro takes literal strings and converts them into:
@@ -15,7 +16,7 @@ def document(sentences, to_source, **kw):
         # The whole sentence is a string?
         if (isinstance(s, Expr) and isinstance(s.value, Str) and
            # and the previous is an assign
-           isinstance(prev, Assign)):
+           isinstance(prev, Assign)):  # noqa: E128
             # Apply it to the first target
             target = prev.targets[0]
             value = prev.value
diff --git a/experiments/__doc__/mcpy/test_mymacros.py b/experiments/__doc__/mcpy/test_mymacros.py
index c9c7e312..61dfb475 100755
--- a/experiments/__doc__/mcpy/test_mymacros.py
+++ b/experiments/__doc__/mcpy/test_mymacros.py
@@ -1,3 +1,3 @@
 #!/usr/bin/python3
-import mcpy.activate
-import application
+import mcpy.activate  # noqa: F401
+import application    # noqa: F401
diff --git a/kiplot/config_reader.py b/kiplot/config_reader.py
index 565cabd2..b484233b 100644
--- a/kiplot/config_reader.py
+++ b/kiplot/config_reader.py
@@ -10,7 +10,7 @@ import pcbnew
 from .error import (KiPlotConfigurationError)
 from .kiplot import (Layer, get_layer_id_from_pcb)
 from .misc import (NO_YAML_MODULE, EXIT_BAD_CONFIG)
-from mcpy import activate
+from mcpy import activate  # noqa: F401
 # Output classes
 from .out_base import BaseOutput
 from . import out_gerber          # noqa: F401