diff --git a/pkgs/development/python-modules/cherrypy/default.nix b/pkgs/development/python-modules/cherrypy/default.nix
index 327a10f2491..cffffde8e3d 100644
--- a/pkgs/development/python-modules/cherrypy/default.nix
+++ b/pkgs/development/python-modules/cherrypy/default.nix
@@ -20,6 +20,6 @@ buildPythonPackage rec {
   meta = with stdenv.lib; {
     homepage = "http://www.cherrypy.org";
     description = "A pythonic, object-oriented HTTP framework";
-    license = licenses.mit.bsd3;
+    license = licenses.bsd3;
   };
 }
diff --git a/pkgs/development/python-modules/portend/default.nix b/pkgs/development/python-modules/portend/default.nix
index 9092185a40f..cb418678a99 100644
--- a/pkgs/development/python-modules/portend/default.nix
+++ b/pkgs/development/python-modules/portend/default.nix
@@ -18,6 +18,6 @@ buildPythonPackage rec {
   meta = with stdenv.lib; {
     description = "Monitor TCP ports for bound or unbound states";
     homepage = https://github.com/jaraco/portend;
-    license = lib.licenses.bsd3;
+    license = licenses.bsd3;
   };
 }
diff --git a/pkgs/development/python-modules/pytest-sugar/default.nix b/pkgs/development/python-modules/pytest-sugar/default.nix
index 81f5a2cbd4b..2965d169599 100644
--- a/pkgs/development/python-modules/pytest-sugar/default.nix
+++ b/pkgs/development/python-modules/pytest-sugar/default.nix
@@ -15,6 +15,6 @@ buildPythonPackage rec {
   meta = with stdenv.lib; {
     description = "A plugin that changes the default look and feel of py.test";
     homepage = https://github.com/Frozenball/pytest-sugar;
-    license = lib.licenses.bsd3;
+    license = licenses.bsd3;
   };
 }
diff --git a/pkgs/development/python-modules/pytest-warnings/default.nix b/pkgs/development/python-modules/pytest-warnings/default.nix
index e6ebfcbb716..6b835abcafe 100644
--- a/pkgs/development/python-modules/pytest-warnings/default.nix
+++ b/pkgs/development/python-modules/pytest-warnings/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi, pytest }:
+{ lib, buildPythonPackage, fetchPypi, pytest }:
 
 buildPythonPackage rec {
   name = "${pname}-${version}";
@@ -12,7 +12,7 @@ buildPythonPackage rec {
 
   propagatedBuildInputs = [ pytest ];
 
-  meta = with stdenv.lib; {
+  meta = {
     description = "Plugin to list Python warnings in pytest report";
     homepage = github.com/fschulze/pytest-warnings;
     license = lib.licenses.mit;