diff --git a/lang/python37/Makefile b/lang/python37/Makefile
index ffec753c7ff0..6f4225651176 100644
--- a/lang/python37/Makefile
+++ b/lang/python37/Makefile
@@ -1,141 +1,142 @@
 # Created by: Kubilay Kocak <koobs@FreeBSD.org>
 
 PORTNAME=	python
 PORTVERSION=	${PYTHON_PORTVERSION}
+PORTREVISION=	1
 CATEGORIES=	lang python
 MASTER_SITES=	PYTHON/ftp/python/${PORTVERSION}
 PKGNAMESUFFIX=	${PYTHON_SUFFIX}
 DISTNAME=	Python-${PORTVERSION}
 DIST_SUBDIR=	python
 
 MAINTAINER=	python@FreeBSD.org
 COMMENT=	Interpreted object-oriented programming language
 
 LICENSE=	PSFL
 
-LIB_DEPENDS=	libffi.so:devel/libffi
+LIB_DEPENDS=	libffi.so:devel/libffi \
+		libmpdec.so:math/mpdecimal
 
 USES=		cpe ncurses pathfix pkgconfig readline:port shebangfix ssl tar:xz
 PATHFIX_MAKEFILEIN=	Makefile.pre.in
 USE_LDCONFIG=	yes
 GNU_CONFIGURE=	yes
 python_CMD=	${PREFIX}/bin/python${PYTHON_PORTVERSION:R}
 SHEBANG_FILES=	Lib/*.py Lib/*/*.py Lib/*/*/*.py Lib/*/*/*/*.py
 
 # Duplicate python.mk variables. TODO: Let lang/python?? ports use python.mk bits.
 PYTHON_VER=		${PYTHON_PORTVERSION:R}
 PYTHON_VERSION=		python${PYTHON_VER}
 PYTHON_SUFFIX=		${PYTHON_VER:S/.//g}
 
 DISABLED_EXTENSIONS=	_sqlite3 _tkinter _gdbm
-CONFIGURE_ARGS+=	--enable-shared --without-ensurepip \
-			--with-system-ffi
+CONFIGURE_ARGS+=	--enable-shared --with-system-ffi --with-system-libmpdec --without-ensurepip
 CONFIGURE_ENV+=		OPT="" DISABLED_EXTENSIONS="${DISABLED_EXTENSIONS}"	# Null out OPT to respect user CFLAGS and remove optimizations
 
 INSTALL_TARGET=		altinstall						# Don't want cloberring of unprefixed files
 
 TEST_TARGET=		buildbottest
 TEST_ARGS=		TESTOPTS=-j${MAKE_JOBS_NUMBER}
 
 MAKE_ARGS+=		INSTALL_SHARED="${INSTALL_LIB}"				# Strip shared library
 
 SUB_FILES=		pkg-message
 SUB_LIST=		PYTHON_SUFFIX=${PYTHON_SUFFIX}
 
 PLIST_SUB=		ABI=${ABIFLAGS} \
 			XY=${PYTHON_SUFFIX} \
 			XYDOT=${PYTHON_VER} \
 			XYZDOT=${PORTVERSION} \
 			OSMAJOR=${OSVERSION:C/([0-9]*)[0-9]{5}/\1/}		# For plat-freebsd* in pkg-plist. https://bugs.python.org/issue19554
 
 OPTIONS_DEFINE=		DEBUG IPV6 NLS PYMALLOC
 OPTIONS_DEFAULT=	PYMALLOC
 OPTIONS_RADIO=		HASH
 OPTIONS_RADIO_HASH=	FNV SIPHASH
 OPTIONS_SUB=		yes
 
 NLS_DESC=		Enable gettext support for the locale module
 PYMALLOC_DESC=		Enable specialized mallocs
 
 HASH_DESC=		Hash Algorithm (PEP-456)
 FNV_DESC=		Modified Fowler-Noll-Vo Algorithm
 SIPHASH_DESC=		SipHash24 Algorithm
 
 FNV_CONFIGURE_ON=	--with-hash-algorithm=fnv
 SIPHASH_CONFIGURE_ON=	--with-hash-algorithm=siphash24
 
 DEBUG_CONFIGURE_WITH=	pydebug
 IPV6_CONFIGURE_ENABLE=	ipv6
 
 # Use CPPFLAGS over CFLAGS due to -I ordering, causing elementtree and pyexpat
 # to break in Python 2.7, or preprocessor complaints in Python >= 3.3
 # Upstream Issue: https://bugs.python.org/issue6299
 NLS_USES=		gettext
 NLS_CPPFLAGS=		-I${LOCALBASE}/include
 NLS_LIBS=		-L${LOCALBASE}/lib -lintl
 NLS_CONFIGURE_ENV_OFF=	ac_cv_lib_intl_textdomain=no ac_cv_header_libintl_h=no
 
 PYMALLOC_CONFIGURE_WITH=	pymalloc
 
 .include "${.CURDIR}/Makefile.version"
 .include <bsd.port.options.mk>
 
 .if ${PORT_OPTIONS:MPYMALLOC}
 ABIFLAGS:=	m${ABIFLAGS}
 .endif
 
 .if ${PORT_OPTIONS:MDEBUG}
 ABIFLAGS:=	d${ABIFLAGS}
 .endif
 
 .if !empty(ABIFLAGS)
 PLIST_FILES+=	bin/python${PYTHON_VER}${ABIFLAGS} \
 		bin/python${PYTHON_VER}${ABIFLAGS}-config \
 		libdata/pkgconfig/python-${PYTHON_VER}${ABIFLAGS}.pc
 .endif
 
 .if ${ARCH} == sparc64
 CFLAGS+=	-DPYTHON_DEFAULT_RECURSION_LIMIT=900
 .endif
 
 # See https://bugs.freebsd.org/115940 and https://bugs.freebsd.org/193650
 .if !exists(/usr/bin/ypcat) || defined(WITHOUT_NIS)
 PLIST_SUB+=	NO_NIS="@comment "
 DISABLED_EXTENSIONS+=	nis
 .else
 PLIST_SUB+=	NO_NIS=""
 .endif
 
 post-patch:
 # disable the detection of includes and library from e2fsprogs-libuuid,
 # which introduces hidden dependency and breaks build
 	@${REINPLACE_CMD} -e 's|uuid/uuid.h|ignore_&|' ${WRKSRC}/configure
 	@${REINPLACE_CMD} -e '/find_library_file/ s|uuid|ignore_&|' ${WRKSRC}/setup.py
 
 post-install:
 .if ! ${PORT_OPTIONS:MDEBUG}
 	${RM} ${STAGEDIR}${PREFIX}/lib/libpython3.so						# Upstream Issue: https://bugs.python.org/issue17975
 .endif
 # This code block exists for the qemu-user enabled cross build environment.
 # When using this environment in poudriere, CC is not set to the default
 # of /usr/bin/cc and a cross-compile toolchain is used.  We need to hand
 # edit this so that the run time configuration for python matches what the
 # FreeBSD base system provides.  sbruno 02Aug2017
 .if ${CC} == /nxb-bin/usr/bin/cc
 	@${REINPLACE_CMD} -e 's=/nxb-bin==' \
 		${STAGEDIR}${PREFIX}/lib/python${PYTHON_VER}/_sysconfigdata_${ABIFLAGS}_freebsd${OSREL:R}_.py
 	@cd ${WRKSRC} && ${SETENV} LD_LIBRARY_PATH=${WRKSRC} \
 		./python -E -m compileall -d ${PREFIX}/lib/python${PYTHON_VER} \
 		${STAGEDIR}${PREFIX}/lib/python${PYTHON_VER}/_sysconfigdata_${ABIFLAGS}_freebsd${OSREL:R}_.py
 	@cd ${WRKSRC} && ${SETENV} LD_LIBRARY_PATH=${WRKSRC} \
 		./python -E -O -m compileall -d ${PREFIX}/lib/python${PYTHON_VER} \
 		${STAGEDIR}${PREFIX}/lib/python${PYTHON_VER}/_sysconfigdata_${ABIFLAGS}_freebsd${OSREL:R}_.py
 	@${REINPLACE_CMD} -e 's=/nxb-bin==' \
 		${STAGEDIR}${PREFIX}/lib/python${PYTHON_VER}/config-${PYTHON_VER}${ABIFLAGS}/Makefile
 .endif
 	for i in ${STAGEDIR}${PREFIX}/lib/python${PYTHON_VER}/lib-dynload/*.so; do \
 		${STRIP_CMD} $$i; done								# Strip shared extensions
 	${INSTALL_DATA} ${WRKSRC}/Tools/gdb/libpython.py \
 		${STAGEDIR}${PREFIX}/lib/libpython${PYTHON_VER}${ABIFLAGS}.so.1.0-gdb.py
 
 .include <bsd.port.mk>
diff --git a/lang/python37/files/patch-Modules___decimal___decimal.c b/lang/python37/files/patch-Modules___decimal___decimal.c
new file mode 100644
index 000000000000..b93340cc3f40
--- /dev/null
+++ b/lang/python37/files/patch-Modules___decimal___decimal.c
@@ -0,0 +1,32 @@
+--- Modules/_decimal/_decimal.c.orig	2021-02-17 21:21:24 UTC
++++ Modules/_decimal/_decimal.c
+@@ -58,6 +58,11 @@
+ 
+ #define BOUNDS_CHECK(x, MIN, MAX) x = (x < MIN || MAX < x) ? MAX : x
+ 
++#if defined(__GNUC__) && !defined(__INTEL_COMPILER)
++  #define UNUSED __attribute__((unused))
++#else
++  #define UNUSED
++#endif
+ 
+ /* _Py_DEC_MINALLOC >= MPD_MINALLOC */
+ #define _Py_DEC_MINALLOC 4
+@@ -3277,7 +3282,7 @@ dec_format(PyObject *dec, PyObject *args)
+     }
+     else {
+         size_t n = strlen(spec.dot);
+-        if (n > 1 || (n == 1 && !isascii((uchar)spec.dot[0]))) {
++        if (n > 1 || (n == 1 && !isascii((unsigned char)spec.dot[0]))) {
+             /* fix locale dependent non-ascii characters */
+             dot = dotsep_as_utf8(spec.dot);
+             if (dot == NULL) {
+@@ -3286,7 +3291,7 @@ dec_format(PyObject *dec, PyObject *args)
+             spec.dot = PyBytes_AS_STRING(dot);
+         }
+         n = strlen(spec.sep);
+-        if (n > 1 || (n == 1 && !isascii((uchar)spec.sep[0]))) {
++        if (n > 1 || (n == 1 && !isascii((unsigned char)spec.sep[0]))) {
+             /* fix locale dependent non-ascii characters */
+             sep = dotsep_as_utf8(spec.sep);
+             if (sep == NULL) {
diff --git a/lang/python37/files/patch-setup.py b/lang/python37/files/patch-setup.py
new file mode 100644
index 000000000000..1121e27d82e3
--- /dev/null
+++ b/lang/python37/files/patch-setup.py
@@ -0,0 +1,11 @@
+--- setup.py.orig	2021-02-17 21:21:03 UTC
++++ setup.py
+@@ -2057,7 +2057,7 @@ class PyBuildExt(build_ext):
+         undef_macros = []
+         if '--with-system-libmpdec' in sysconfig.get_config_var("CONFIG_ARGS"):
+             include_dirs = []
+-            libraries = [':libmpdec.so.2']
++            libraries = ['mpdec']
+             sources = ['_decimal/_decimal.c']
+             depends = ['_decimal/docstrings.h']
+         else: