diff --git a/devel/py-frozenlist/Makefile b/devel/py-frozenlist/Makefile
new file mode 100644
index 00000000000..764419052b6
--- /dev/null
+++ b/devel/py-frozenlist/Makefile
@@ -0,0 +1,24 @@
+COMMENT=	list-like structure implementing MutableSequence
+
+MODPY_EGG_VERSION=	1.3.1
+
+DISTNAME=	frozenlist-${MODPY_EGG_VERSION}
+PKGNAME=	py-${DISTNAME}
+
+CATEGORIES=	devel
+
+# https://github.com/aio-libs/frozenlist
+HOMEPAGE=	https://frozenlist.readthedocs.io/
+
+# Apache 2.0
+PERMIT_PACKAGE=	Yes
+
+MODULES=	lang/python
+
+MODPY_PI=	Yes
+MODPY_PYBUILD=	setuptools
+
+FLAVORS=	python3
+FLAVOR=		python3
+
+.include <bsd.port.mk>
diff --git a/devel/py-frozenlist/distinfo b/devel/py-frozenlist/distinfo
new file mode 100644
index 00000000000..fbb1a8e0b29
--- /dev/null
+++ b/devel/py-frozenlist/distinfo
@@ -0,0 +1,2 @@
+SHA256 (frozenlist-1.3.1.tar.gz) = OnNeQhGgTM+j9IM1R6zfXS+GO/6wHP0+2v+8JR8Vzsg=
+SIZE (frozenlist-1.3.1.tar.gz) = 66441
diff --git a/devel/py-frozenlist/pkg/DESCR b/devel/py-frozenlist/pkg/DESCR
new file mode 100644
index 00000000000..4a72ac1ea82
--- /dev/null
+++ b/devel/py-frozenlist/pkg/DESCR
@@ -0,0 +1,4 @@
+frozenlist.FrozenList is a list-like structure which implements
+collections.abc.MutableSequence. The list is mutable until
+FrozenList.freeze is called, after which list modifications raise
+RuntimeError.
diff --git a/devel/py-frozenlist/pkg/PLIST b/devel/py-frozenlist/pkg/PLIST
new file mode 100644
index 00000000000..e643c388830
--- /dev/null
+++ b/devel/py-frozenlist/pkg/PLIST
@@ -0,0 +1,15 @@
+lib/python${MODPY_VERSION}/site-packages/frozenlist/
+lib/python${MODPY_VERSION}/site-packages/frozenlist-${MODPY_EGG_VERSION}.dist-info/
+lib/python${MODPY_VERSION}/site-packages/frozenlist-${MODPY_EGG_VERSION}.dist-info/LICENSE
+lib/python${MODPY_VERSION}/site-packages/frozenlist-${MODPY_EGG_VERSION}.dist-info/METADATA
+lib/python${MODPY_VERSION}/site-packages/frozenlist-${MODPY_EGG_VERSION}.dist-info/RECORD
+lib/python${MODPY_VERSION}/site-packages/frozenlist-${MODPY_EGG_VERSION}.dist-info/WHEEL
+lib/python${MODPY_VERSION}/site-packages/frozenlist-${MODPY_EGG_VERSION}.dist-info/top_level.txt
+lib/python${MODPY_VERSION}/site-packages/frozenlist/__init__.py
+lib/python${MODPY_VERSION}/site-packages/frozenlist/__init__.pyi
+${MODPY_COMMENT}lib/python${MODPY_VERSION}/site-packages/frozenlist/${MODPY_PYCACHE}/
+lib/python${MODPY_VERSION}/site-packages/frozenlist/${MODPY_PYCACHE}__init__.${MODPY_PYC_MAGIC_TAG}${MODPY_PYOEXTENSION}
+lib/python${MODPY_VERSION}/site-packages/frozenlist/${MODPY_PYCACHE}__init__.${MODPY_PYC_MAGIC_TAG}pyc
+@so lib/python${MODPY_VERSION}/site-packages/frozenlist/_frozenlist.${MODPY_PYC_MAGIC_TAG}so
+lib/python${MODPY_VERSION}/site-packages/frozenlist/_frozenlist.pyx
+lib/python${MODPY_VERSION}/site-packages/frozenlist/py.typed