From 959d1a4424db94fc4bf89622a14d084ae21ba37a Mon Sep 17 00:00:00 2001
From: Frederik Rietdijk <fridh@fridh.nl>
Date: Thu, 25 Mar 2021 08:39:12 +0100
Subject: [PATCH] python2Packages.singledispatch: python 2 only

---
 pkgs/development/python-modules/nltk/default.nix     | 2 +-
 pkgs/development/python-modules/pecan/default.nix    | 2 +-
 pkgs/development/python-modules/pgpy/default.nix     | 2 +-
 pkgs/development/python-modules/tornado/4.nix        | 8 ++++----
 pkgs/development/python-modules/tornado/5.nix        | 8 ++++----
 pkgs/development/python-modules/variants/default.nix | 2 +-
 pkgs/top-level/python-packages.nix                   | 2 --
 pkgs/top-level/python2-packages.nix                  | 2 ++
 8 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/pkgs/development/python-modules/nltk/default.nix b/pkgs/development/python-modules/nltk/default.nix
index 298b32ed8b8e..c87a935a306d 100644
--- a/pkgs/development/python-modules/nltk/default.nix
+++ b/pkgs/development/python-modules/nltk/default.nix
@@ -1,4 +1,4 @@
-{ fetchPypi, buildPythonPackage, lib, six, singledispatch, isPy3k
+{ fetchPypi, buildPythonPackage, lib, six, singledispatch ? null, isPy3k
 , click
 , joblib
 , regex
diff --git a/pkgs/development/python-modules/pecan/default.nix b/pkgs/development/python-modules/pecan/default.nix
index 50b62503ff87..d19fc1011347 100644
--- a/pkgs/development/python-modules/pecan/default.nix
+++ b/pkgs/development/python-modules/pecan/default.nix
@@ -5,7 +5,7 @@
 # Python deps
 , logutils
 , Mako
-, singledispatch
+, singledispatch ? null
 , six
 , webtest
 # Test Inputs
diff --git a/pkgs/development/python-modules/pgpy/default.nix b/pkgs/development/python-modules/pgpy/default.nix
index 2c527d87d186..b3fde72baec3 100644
--- a/pkgs/development/python-modules/pgpy/default.nix
+++ b/pkgs/development/python-modules/pgpy/default.nix
@@ -1,5 +1,5 @@
 { lib, isPy3k, fetchFromGitHub, buildPythonPackage
-, six, enum34, pyasn1, cryptography, singledispatch
+, six, enum34, pyasn1, cryptography, singledispatch ? null
 , fetchPypi, pytestCheckHook }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/tornado/4.nix b/pkgs/development/python-modules/tornado/4.nix
index 03c1b6ab0808..da86c7037b92 100644
--- a/pkgs/development/python-modules/tornado/4.nix
+++ b/pkgs/development/python-modules/tornado/4.nix
@@ -2,10 +2,10 @@
 , python
 , buildPythonPackage
 , fetchPypi
-, backports_abc
-, backports_ssl_match_hostname
-, certifi
-, singledispatch
+, backports_abc ? null
+, backports_ssl_match_hostname ? null
+, certifi ? null
+, singledispatch ? null
 , futures ? null
 , isPy27
 }:
diff --git a/pkgs/development/python-modules/tornado/5.nix b/pkgs/development/python-modules/tornado/5.nix
index 74ca668de490..2905f89dc0cc 100644
--- a/pkgs/development/python-modules/tornado/5.nix
+++ b/pkgs/development/python-modules/tornado/5.nix
@@ -2,10 +2,10 @@
 , python
 , buildPythonPackage
 , fetchPypi
-, backports_abc
-, backports_ssl_match_hostname
-, certifi
-, singledispatch
+, backports_abc ? null
+, backports_ssl_match_hostname ? null
+, certifi ? null
+, singledispatch ? null
 , futures ? null
 , isPy27
 }:
diff --git a/pkgs/development/python-modules/variants/default.nix b/pkgs/development/python-modules/variants/default.nix
index 11c50646700d..3a45230720e2 100644
--- a/pkgs/development/python-modules/variants/default.nix
+++ b/pkgs/development/python-modules/variants/default.nix
@@ -3,7 +3,7 @@
 , fetchPypi
 , pytestrunner
 , setuptools_scm
-, singledispatch
+, singledispatch ? null
 , pytest
 , lib
 }:
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 3c697925b7d2..76b379f86a08 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -7145,8 +7145,6 @@ in {
 
   simpy = callPackage ../development/python-modules/simpy { };
 
-  singledispatch = callPackage ../development/python-modules/singledispatch { };
-
   signify = callPackage ../development/python-modules/signify { };
 
   sip = callPackage ../development/python-modules/sip { };
diff --git a/pkgs/top-level/python2-packages.nix b/pkgs/top-level/python2-packages.nix
index 4d22811757be..c72d5263af96 100644
--- a/pkgs/top-level/python2-packages.nix
+++ b/pkgs/top-level/python2-packages.nix
@@ -545,6 +545,8 @@ with self; with super; {
 
   simpleparse = callPackage ../development/python-modules/simpleparse { };
 
+  singledispatch = callPackage ../development/python-modules/singledispatch { };
+
   sipsimple = callPackage ../development/python-modules/sipsimple { };
 
   slowaes = callPackage ../development/python-modules/slowaes { };