python39Packages.ruamel-yaml: normalise name, adopt

31 files changed, 61 insertions, 66 deletions

diff --git a/pkgs/development/python-modules/Nikola/default.nix b/pkgs/development/python-modules/Nikola/default.nix
index ae18ce5dc31..364e50c1024 100644
--- a/pkgs/development/python-modules/Nikola/default.nix
+++ b/pkgs/development/python-modules/Nikola/default.nix
@@ -30,7 +30,7 @@
 , pytestCheckHook
 , pythonOlder
 , requests
-, ruamel_yaml
+, ruamel-yaml
 , stdenv
 , toml
 , typogrify
@@ -75,7 +75,7 @@ buildPythonPackage rec {
     pyphen
     PyRSS2Gen
     requests
-    ruamel_yaml
+    ruamel-yaml
     toml
     typogrify
     unidecode
diff --git a/pkgs/development/python-modules/conda/default.nix b/pkgs/development/python-modules/conda/default.nix
index b097805292e..5f1b56cbcde 100644
--- a/pkgs/development/python-modules/conda/default.nix
+++ b/pkgs/development/python-modules/conda/default.nix
@@ -3,7 +3,7 @@
 , fetchPypi
 , pycosat
 , requests
-, ruamel_yaml
+, ruamel-yaml
 , isPy3k
 , enum34
 }:
@@ -20,7 +20,7 @@ buildPythonPackage rec {
     sha256 = "a91ef821343dea3ba9670f3d10b36c1ace4f4c36d70c175d8fc8886e94285953";
   };
 
-  propagatedBuildInputs = [ pycosat requests ruamel_yaml ] ++ lib.optional (!isPy3k) enum34;
+  propagatedBuildInputs = [ pycosat requests ruamel-yaml ] ++ lib.optional (!isPy3k) enum34;
 
   # No tests
   doCheck = false;
diff --git a/pkgs/development/python-modules/construct/2.10.54.nix b/pkgs/development/python-modules/construct/2.10.54.nix
index 6bb279490ab..b4eaeaec391 100644
--- a/pkgs/development/python-modules/construct/2.10.54.nix
+++ b/pkgs/development/python-modules/construct/2.10.54.nix
@@ -1,5 +1,5 @@
 { lib, stdenv, buildPythonPackage, fetchFromGitHub, pythonOlder
-, six, pytestCheckHook, pytest-benchmark, enum34, numpy, arrow, ruamel_yaml
+, six, pytestCheckHook, pytest-benchmark, enum34, numpy, arrow, ruamel-yaml
 }:
 
 buildPythonPackage rec {
@@ -14,7 +14,7 @@ buildPythonPackage rec {
     sha256 = "1mqspsn6bf3ibvih1zna2glkg8iw7vy5zg9gzg0d1m8zcndk2c48";
   };
 
-  checkInputs = [ pytestCheckHook pytest-benchmark enum34 numpy arrow ruamel_yaml ];
+  checkInputs = [ pytestCheckHook pytest-benchmark enum34 numpy arrow ruamel-yaml ];
 
   disabledTests = lib.optionals stdenv.isDarwin [ "test_multiprocessing" ];
 
diff --git a/pkgs/development/python-modules/construct/default.nix b/pkgs/development/python-modules/construct/default.nix
index 4ad78ddad3b..47ae573e24c 100644
--- a/pkgs/development/python-modules/construct/default.nix
+++ b/pkgs/development/python-modules/construct/default.nix
@@ -1,5 +1,5 @@
 { lib, stdenv, buildPythonPackage, fetchFromGitHub, pythonOlder
-, six, pytestCheckHook, pytest-benchmark, numpy, arrow, ruamel_yaml
+, six, pytestCheckHook, pytest-benchmark, numpy, arrow, ruamel-yaml
 , lz4, cloudpickle
 }:
 
@@ -22,7 +22,7 @@ buildPythonPackage rec {
     lz4
   ];
 
-  checkInputs = [ pytestCheckHook pytest-benchmark numpy arrow ruamel_yaml cloudpickle ];
+  checkInputs = [ pytestCheckHook pytest-benchmark numpy arrow ruamel-yaml cloudpickle ];
 
   disabledTests = lib.optionals stdenv.isDarwin [ "test_multiprocessing" ];
 
diff --git a/pkgs/development/python-modules/dateparser/0.x.nix b/pkgs/development/python-modules/dateparser/0.x.nix
index 2aab262e64d..35125453e78 100644
--- a/pkgs/development/python-modules/dateparser/0.x.nix
+++ b/pkgs/development/python-modules/dateparser/0.x.nix
@@ -11,7 +11,7 @@
 , convertdate
 , umalqurra
 , jdatetime
-, ruamel_yaml
+, ruamel-yaml
 }:
 
 buildPythonPackage rec {
@@ -41,7 +41,7 @@ buildPythonPackage rec {
     # install_requires
     python-dateutil pytz regex tzlocal
     # extra_requires
-    convertdate umalqurra jdatetime ruamel_yaml
+    convertdate umalqurra jdatetime ruamel-yaml
   ];
 
   pythonImportsCheck = [ "dateparser" ];
diff --git a/pkgs/development/python-modules/dateparser/default.nix b/pkgs/development/python-modules/dateparser/default.nix
index e1f2f933687..f75a355c218 100644
--- a/pkgs/development/python-modules/dateparser/default.nix
+++ b/pkgs/development/python-modules/dateparser/default.nix
@@ -14,7 +14,7 @@
 , parameterized
 , pytestCheckHook
 , GitPython
-, ruamel_yaml
+, ruamel-yaml
 }:
 
 buildPythonPackage rec {
@@ -41,7 +41,7 @@ buildPythonPackage rec {
     parameterized
     pytestCheckHook
     GitPython
-    ruamel_yaml
+    ruamel-yaml
   ];
 
   preCheck = ''
diff --git a/pkgs/development/python-modules/drf-yasg/default.nix b/pkgs/development/python-modules/drf-yasg/default.nix
index 45842fb809c..4b55a08f842 100644
--- a/pkgs/development/python-modules/drf-yasg/default.nix
+++ b/pkgs/development/python-modules/drf-yasg/default.nix
@@ -2,7 +2,7 @@
 , buildPythonPackage
 , fetchPypi
 , inflection
-, ruamel_yaml
+, ruamel-yaml
 , setuptools-scm
 , six
 , coreapi
@@ -33,7 +33,7 @@ buildPythonPackage rec {
   propagatedBuildInputs = [
     six
     inflection
-    ruamel_yaml
+    ruamel-yaml
     coreapi
     djangorestframework
   ];
diff --git a/pkgs/development/python-modules/jc/default.nix b/pkgs/development/python-modules/jc/default.nix
index 93fd8d51605..3a9d24c29dd 100644
--- a/pkgs/development/python-modules/jc/default.nix
+++ b/pkgs/development/python-modules/jc/default.nix
@@ -1,7 +1,7 @@
 { lib
 , buildPythonPackage
 , fetchFromGitHub
-, ruamel_yaml
+, ruamel-yaml
 , xmltodict
 , pygments
 , pytestCheckHook
@@ -20,7 +20,7 @@ buildPythonPackage rec {
     sha256 = "sha256-ISggj6oOF0B7TKIQAlZtauRrDAWP88OOFezLJK6edjI=";
   };
 
-  propagatedBuildInputs = [ ruamel_yaml xmltodict pygments ];
+  propagatedBuildInputs = [ ruamel-yaml xmltodict pygments ];
 
   checkInputs = [ pytestCheckHook ];
 
diff --git a/pkgs/development/python-modules/jupyter-repo2docker/default.nix b/pkgs/development/python-modules/jupyter-repo2docker/default.nix
index f4eb9190aa4..b59b9adb248 100644
--- a/pkgs/development/python-modules/jupyter-repo2docker/default.nix
+++ b/pkgs/development/python-modules/jupyter-repo2docker/default.nix
@@ -5,7 +5,7 @@
 , pkgs-docker
 , python-json-logger
 , pyyaml
-, ruamel_yaml
+, ruamel-yaml
 , semver
 , toml
 , traitlets
@@ -27,7 +27,7 @@ buildPythonPackage rec {
     jinja2
     pkgs-docker
     python-json-logger
-    ruamel_yaml
+    ruamel-yaml
     semver
     toml
     traitlets
diff --git a/pkgs/development/python-modules/jupyter-telemetry/default.nix b/pkgs/development/python-modules/jupyter-telemetry/default.nix
index 9dddd8ec568..f7efc0a1598 100644
--- a/pkgs/development/python-modules/jupyter-telemetry/default.nix
+++ b/pkgs/development/python-modules/jupyter-telemetry/default.nix
@@ -4,7 +4,7 @@
 , pythonOlder
 , python-json-logger
 , jsonschema
-, ruamel_yaml
+, ruamel-yaml
 , traitlets
 }:
 
@@ -19,7 +19,7 @@ buildPythonPackage rec {
   };
 
   propagatedBuildInputs = [
-    python-json-logger jsonschema ruamel_yaml traitlets
+    python-json-logger jsonschema ruamel-yaml traitlets
   ];
 
   meta = with lib; {
diff --git a/pkgs/development/python-modules/mautrix/default.nix b/pkgs/development/python-modules/mautrix/default.nix
index 4619b1096fd..90000de8985 100644
--- a/pkgs/development/python-modules/mautrix/default.nix
+++ b/pkgs/development/python-modules/mautrix/default.nix
@@ -1,5 +1,5 @@
 { lib, buildPythonPackage, fetchPypi, aiohttp, pythonOlder
-, sqlalchemy, ruamel_yaml, CommonMark, lxml
+, sqlalchemy, ruamel-yaml, CommonMark, lxml
 }:
 
 buildPythonPackage rec {
@@ -16,7 +16,7 @@ buildPythonPackage rec {
 
     # defined in optional-requirements.txt
     sqlalchemy
-    ruamel_yaml
+    ruamel-yaml
     CommonMark
     lxml
   ];
diff --git a/pkgs/development/python-modules/maya/default.nix b/pkgs/development/python-modules/maya/default.nix
index 4a751a188c2..baa95f7c7de 100644
--- a/pkgs/development/python-modules/maya/default.nix
+++ b/pkgs/development/python-modules/maya/default.nix
@@ -1,5 +1,5 @@
 { lib, fetchPypi, fetchpatch, buildPythonPackage
-, dateparser, humanize, pendulum, ruamel_yaml, tzlocal }:
+, dateparser, humanize, pendulum, ruamel-yaml, tzlocal }:
 
 buildPythonPackage rec {
   pname = "maya";
@@ -19,7 +19,7 @@ buildPythonPackage rec {
     })
   ];
 
-  propagatedBuildInputs = [ dateparser humanize pendulum ruamel_yaml tzlocal ];
+  propagatedBuildInputs = [ dateparser humanize pendulum ruamel-yaml tzlocal ];
 
   # No tests
   doCheck = false;
diff --git a/pkgs/development/python-modules/mitmproxy/default.nix b/pkgs/development/python-modules/mitmproxy/default.nix
index 4f31c512197..bc5835fac53 100644
--- a/pkgs/development/python-modules/mitmproxy/default.nix
+++ b/pkgs/development/python-modules/mitmproxy/default.nix
@@ -24,7 +24,7 @@
 , pyopenssl
 , pyparsing
 , pyperclip
-, ruamel_yaml
+, ruamel-yaml
 , setuptools
 , sortedcontainers
 , tornado
@@ -78,7 +78,7 @@ buildPythonPackage rec {
     pyopenssl
     pyparsing
     pyperclip
-    ruamel_yaml
+    ruamel-yaml
     sortedcontainers
     tornado
     urwid
diff --git a/pkgs/development/python-modules/monty/default.nix b/pkgs/development/python-modules/monty/default.nix
index 73325c24d94..9f275a99c74 100644
--- a/pkgs/development/python-modules/monty/default.nix
+++ b/pkgs/development/python-modules/monty/default.nix
@@ -8,7 +8,7 @@
 , pandas
 , pydantic
 , pymongo
-, ruamel_yaml
+, ruamel-yaml
 , tqdm
 }:
 
@@ -30,7 +30,7 @@ buildPythonPackage rec {
   '';
 
   propagatedBuildInputs = [
-    ruamel_yaml
+    ruamel-yaml
     tqdm
     msgpack
   ];
diff --git a/pkgs/development/python-modules/ntc-templates/default.nix b/pkgs/development/python-modules/ntc-templates/default.nix
index d7b3db1f452..c04d0e2df08 100644
--- a/pkgs/development/python-modules/ntc-templates/default.nix
+++ b/pkgs/development/python-modules/ntc-templates/default.nix
@@ -5,7 +5,7 @@
 , poetry-core
 , textfsm
 , pytestCheckHook
-, ruamel_yaml
+, ruamel-yaml
 , yamllint
 }:
 
@@ -32,7 +32,7 @@ buildPythonPackage rec {
 
   checkInputs = [
     pytestCheckHook
-    ruamel_yaml
+    ruamel-yaml
     yamllint
   ];
 
diff --git a/pkgs/development/python-modules/prance/default.nix b/pkgs/development/python-modules/prance/default.nix
index 105fa9e180b..cbc931d5c59 100644
--- a/pkgs/development/python-modules/prance/default.nix
+++ b/pkgs/development/python-modules/prance/default.nix
@@ -3,7 +3,7 @@
 , fetchFromGitHub
 , chardet
 , requests
-, ruamel_yaml
+, ruamel-yaml
 , six
 , semver
 , pytestCheckHook
@@ -25,7 +25,7 @@ buildPythonPackage rec {
   propagatedBuildInputs = [
     chardet
     requests
-    ruamel_yaml
+    ruamel-yaml
     six
     semver
   ];
diff --git a/pkgs/development/python-modules/pre-commit-hooks/default.nix b/pkgs/development/python-modules/pre-commit-hooks/default.nix
index 212fdf6a721..530cf826917 100644
--- a/pkgs/development/python-modules/pre-commit-hooks/default.nix
+++ b/pkgs/development/python-modules/pre-commit-hooks/default.nix
@@ -4,7 +4,7 @@
 , git
 , pythonOlder
 , pytestCheckHook
-, ruamel_yaml
+, ruamel-yaml
 , toml
 }:
 
@@ -21,7 +21,7 @@ buildPythonPackage rec {
   };
 
   propagatedBuildInputs = [
-    ruamel_yaml
+    ruamel-yaml
     toml
   ];
 
diff --git a/pkgs/development/python-modules/pymatgen/default.nix b/pkgs/development/python-modules/pymatgen/default.nix
index cc262e004fd..f4eb29bedc0 100644
--- a/pkgs/development/python-modules/pymatgen/default.nix
+++ b/pkgs/development/python-modules/pymatgen/default.nix
@@ -10,7 +10,7 @@
 , plotly
 , pydispatcher
 , requests
-, ruamel_yaml
+, ruamel-yaml
 , scipy
 , six
 , spglib
@@ -41,7 +41,7 @@ buildPythonPackage rec {
     plotly
     pydispatcher
     requests
-    ruamel_yaml
+    ruamel-yaml
     scipy
     six
     spglib
diff --git a/pkgs/development/python-modules/python-box/default.nix b/pkgs/development/python-modules/python-box/default.nix
index 6410bbadd27..0edf2b69580 100644
--- a/pkgs/development/python-modules/python-box/default.nix
+++ b/pkgs/development/python-modules/python-box/default.nix
@@ -5,7 +5,7 @@
 , pytestCheckHook
 , pythonOlder
 , pyyaml
-, ruamel_yaml
+, ruamel-yaml
 , toml
 }:
 
@@ -24,7 +24,7 @@ buildPythonPackage rec {
   propagatedBuildInputs = [
     msgpack
     pyyaml
-    ruamel_yaml
+    ruamel-yaml
     toml
   ];
 
diff --git a/pkgs/development/python-modules/pyuavcan/default.nix b/pkgs/development/python-modules/pyuavcan/default.nix
index ff01ea90e22..c3823a6c3c0 100644
--- a/pkgs/development/python-modules/pyuavcan/default.nix
+++ b/pkgs/development/python-modules/pyuavcan/default.nix
@@ -1,5 +1,5 @@
 { lib, buildPythonPackage, fetchFromGitHub, pythonOlder, numpy, nunavut
-, pyserial , pytest, ruamel_yaml}:
+, pyserial , pytest, ruamel-yaml}:
 
  buildPythonPackage rec {
   pname = "pyuavcan";
@@ -18,7 +18,7 @@
     nunavut
     pyserial
     pytest
-    ruamel_yaml
+    ruamel-yaml
   ];
 
   # allow for writable directory for darwin
diff --git a/pkgs/development/python-modules/ruamel_yaml/0.16.nix b/pkgs/development/python-modules/ruamel-yaml/0.16.nix
index c7ac112f3a2..b5ca3fb6e78 100644
--- a/pkgs/development/python-modules/ruamel_yaml/0.16.nix
+++ b/pkgs/development/python-modules/ruamel-yaml/0.16.nix
@@ -9,11 +9,12 @@
 }:
 
 buildPythonPackage rec {
-  pname = "ruamel.yaml";
+  pname = "ruamel-yaml";
   version = "0.16.13";
 
   src = fetchPypi {
-    inherit pname version;
+    pname = "ruamel.yaml";
+    inherit version;
     sha256 = "0hm9yg785f46bkrgqknd6fdvmkby9dpzjnm0b63qf0i748acaj5v";
   };
 
@@ -26,10 +27,7 @@ buildPythonPackage rec {
 
   # causes namespace clash on py27
   dontUsePythonImportsCheck = isPy27;
-  pythonImportsCheck = [
-    "ruamel.yaml"
-    "ruamel.base"
-  ];
+  pythonImportsCheck = [ "ruamel.yaml" ];
 
   meta = with lib; {
     description = "YAML parser/emitter that supports roundtrip preservation of comments, seq/map flow style, and map key order";
diff --git a/pkgs/development/python-modules/ruamel_yaml/default.nix b/pkgs/development/python-modules/ruamel-yaml/default.nix
index 84f13961946..1d7773be0bf 100644
--- a/pkgs/development/python-modules/ruamel_yaml/default.nix
+++ b/pkgs/development/python-modules/ruamel-yaml/default.nix
@@ -7,11 +7,12 @@
 }:
 
 buildPythonPackage rec {
-  pname = "ruamel.yaml";
+  pname = "ruamel-yaml";
   version = "0.17.16";
 
   src = fetchPypi {
-    inherit pname version;
+    pname = "ruamel.yaml";
+    inherit version;
     sha256 = "1a771fc92d3823682b7f0893ad56cb5a5c87c48e62b5399d6f42c8759a583b33";
   };
 
@@ -21,10 +22,7 @@ buildPythonPackage rec {
   propagatedBuildInputs = [ ruamel-base ]
     ++ lib.optional (!isPyPy) ruamel_yaml_clib;
 
-  pythonImportsCheck = [
-    "ruamel.yaml"
-    "ruamel.base"
-  ];
+  pythonImportsCheck = [ "ruamel.yaml" ];
 
   meta = with lib; {
     description = "YAML parser/emitter that supports roundtrip preservation of comments, seq/map flow style, and map key order";
diff --git a/pkgs/development/python-modules/schema-salad/default.nix b/pkgs/development/python-modules/schema-salad/default.nix
index 4e778054875..97367349112 100644
--- a/pkgs/development/python-modules/schema-salad/default.nix
+++ b/pkgs/development/python-modules/schema-salad/default.nix
@@ -6,7 +6,7 @@
 , mistune
 , rdflib
 , rdflib-jsonld
-, ruamel_yaml
+, ruamel-yaml
 , pytestCheckHook
 }:
 
@@ -25,7 +25,7 @@ buildPythonPackage rec {
     mistune
     rdflib
     rdflib-jsonld
-    ruamel_yaml
+    ruamel-yaml
   ];
 
   checkInputs = [ pytestCheckHook ];
diff --git a/pkgs/development/python-modules/strictyaml/default.nix b/pkgs/development/python-modules/strictyaml/default.nix
index d85113b50d2..9b76edc1bae 100644
--- a/pkgs/development/python-modules/strictyaml/default.nix
+++ b/pkgs/development/python-modules/strictyaml/default.nix
@@ -2,7 +2,7 @@
 , lib
 , fetchPypi
 , isPy27
-, ruamel_yaml
+, ruamel-yaml
 , python-dateutil
 }:
 
@@ -21,7 +21,7 @@ buildPythonPackage rec {
       --replace "ruamel.yaml==0.17.4" "ruamel.yaml"
   '';
 
-  propagatedBuildInputs = [ ruamel_yaml python-dateutil ];
+  propagatedBuildInputs = [ ruamel-yaml python-dateutil ];
 
   # Library tested with external tool
   # https://hitchdev.com/approach/contributing-to-hitch-libraries/
diff --git a/pkgs/development/python-modules/yamale/default.nix b/pkgs/development/python-modules/yamale/default.nix
index f590e8d896c..fce4e9d38c5 100644
--- a/pkgs/development/python-modules/yamale/default.nix
+++ b/pkgs/development/python-modules/yamale/default.nix
@@ -4,7 +4,7 @@
 , pythonOlder
 , pytestCheckHook
 , pyyaml
-, ruamel_yaml
+, ruamel-yaml
 }:
 
 buildPythonPackage rec {
@@ -22,7 +22,7 @@ buildPythonPackage rec {
 
   propagatedBuildInputs = [
     pyyaml
-    ruamel_yaml
+    ruamel-yaml
   ];
 
   checkInputs = [
diff --git a/pkgs/development/tools/dt-schema/default.nix b/pkgs/development/tools/dt-schema/default.nix
index 6ee649595ae..a5445c8e021 100644
--- a/pkgs/development/tools/dt-schema/default.nix
+++ b/pkgs/development/tools/dt-schema/default.nix
@@ -2,7 +2,7 @@
 , buildPythonPackage
 , fetchPypi
 , git
-, ruamel_yaml
+, ruamel-yaml
 , jsonschema
 , rfc3987
 , setuptools
@@ -21,7 +21,7 @@ buildPythonPackage rec {
   nativeBuildInputs = [ setuptools-scm git ];
   propagatedBuildInputs = [
     setuptools
-    ruamel_yaml
+    ruamel-yaml
     jsonschema
     rfc3987
   ];
diff --git a/pkgs/development/tools/fdroidserver/default.nix b/pkgs/development/tools/fdroidserver/default.nix
index 5977d0c28d1..32886038559 100644
--- a/pkgs/development/tools/fdroidserver/default.nix
+++ b/pkgs/development/tools/fdroidserver/default.nix
@@ -44,7 +44,7 @@ python.pkgs.buildPythonApplication rec {
     pyyaml
     qrcode
     requests
-    ruamel_yaml
+    ruamel-yaml
     yamllint
   ];
 
diff --git a/pkgs/development/tools/misc/replacement/default.nix b/pkgs/development/tools/misc/replacement/default.nix
index 3d0218ffab2..cbdd8e37c5c 100644
--- a/pkgs/development/tools/misc/replacement/default.nix
+++ b/pkgs/development/tools/misc/replacement/default.nix
@@ -17,7 +17,7 @@ python3Packages.buildPythonApplication rec {
   };
 
   propagatedBuildInputs = with python3Packages; [
-    ruamel_yaml
+    ruamel-yaml
   ];
 
   checkInputs = with python3Packages; [
diff --git a/pkgs/top-level/python-aliases.nix b/pkgs/top-level/python-aliases.nix
index 88c60c9da14..8fdf532415e 100644
--- a/pkgs/top-level/python-aliases.nix
+++ b/pkgs/top-level/python-aliases.nix
@@ -80,6 +80,7 @@ mapAliases ({
   requests_toolbelt = requests-toolbelt; # added 2017-09-26
   rotate-backups = throw "rotate-backups was removed in favor of the top-level rotate-backups"; # added 2021-07-01
   ruamel_base = ruamel-base; # added 2021-11-01
+  ruamel_yaml = ruamel-yaml; # added 2021-11-01
   scikitlearn = scikit-learn; # added 2021-07-21
   selectors34 = throw "selectors34 has been removed: functionality provided by Python itself; archived by upstream."; # added 2021-06-10
   setuptools_scm = setuptools-scm; # added 2021-06-03
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index e9adf60c681..ce39b368af5 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -8204,8 +8204,7 @@ in {
 
   ruamel-base = callPackage ../development/python-modules/ruamel-base { };
 
-  ruamel-yaml = self.ruamel_yaml;
-  ruamel_yaml = callPackage ../development/python-modules/ruamel_yaml { };
+  ruamel-yaml = callPackage ../development/python-modules/ruamel-yaml { };
 
   ruamel-yaml-clib = self.ruamel_yaml_clib;
   ruamel_yaml_clib = callPackage ../development/python-modules/ruamel_yaml_clib { };
diff --git a/pkgs/top-level/python2-packages.nix b/pkgs/top-level/python2-packages.nix
index 781fdff6dc9..bafb05515fe 100644
--- a/pkgs/top-level/python2-packages.nix
+++ b/pkgs/top-level/python2-packages.nix
@@ -530,8 +530,7 @@ with self; with super; {
 
   ruamel-ordereddict = callPackage ../development/python-modules/ruamel-ordereddict { };
 
-  ruamel_yaml = self.ruamel-yaml;
-  ruamel-yaml = callPackage ../development/python-modules/ruamel_yaml/0.16.nix { };
+  ruamel-yaml = callPackage ../development/python-modules/ruamel-yaml/0.16.nix { };
 
   runsnakerun = callPackage ../development/python-modules/runsnakerun { };