Index: lang/Makefile
===================================================================
--- lang/Makefile
+++ lang/Makefile
@@ -275,6 +275,7 @@
     SUBDIR += python-doc-pdf-letter
     SUBDIR += python-doc-text
     SUBDIR += python-mode.el
+    SUBDIR += python-pycache
     SUBDIR += python-tools
     SUBDIR += python2
     SUBDIR += python27
Index: lang/python-pycache/Makefile
===================================================================
--- /dev/null
+++ lang/python-pycache/Makefile
@@ -0,0 +1,11 @@
+PORTNAME=	python-pycache
+PORTVERSION=	0.0.1
+CATEGORIES=	lang
+
+MAINTAINER=	portmgr@FreeBSD.org
+COMMENT=	Trigger to recreate python precompiled bytecode
+
+USES=		trigger metaport
+TRIGGERS=	python-update-cache
+
+.include <bsd.port.mk>
Index: lang/python-pycache/files/python-update-cache.ucl.in
===================================================================
--- /dev/null
+++ lang/python-pycache/files/python-update-cache.ucl.in
@@ -0,0 +1,37 @@
+path_glob: "%%PREFIX%%/lib/python*/site-packages/*"
+cleanup: {
+	type: lua
+	sandbox: false
+	script: <<EOS
+print("TRG: Removing %%PREFIX%%/lib/python*/site-packages")
+EOS
+}
+trigger: {
+	type: lua
+	sandbox: false
+	script: <<EOS
+print("TRG: Update %%PREFIX%%/lib/python*/site-packages")
+local hash = {}
+for _,path in ipairs(arg) do
+  path = string.match(path, ".*/site.packages/[^/]*")
+  if path then
+    local python_sitepackages = string.match(path, ".*/site.packages")
+    if (not hash[path]) and pkg.stat(path) then
+      local python_version = string.match(path, "python3.%d")
+      local egg = string.find(path, ".*egg.info")
+      if (not egg) and python_version then
+        local python_binary = "%%PREFIX%%/bin/" .. python_version
+        if pkg.stat(python_binary) then
+          pkg.exec({python_binary,       "-m", "compileall", "-d", python_sitepackages, path})
+          pkg.exec({python_binary, "-O", "-m", "compileall", "-d", python_sitepackages, path})
+
+          hash[path] = true
+        else
+          print("TRG:ERROR " .. python_binary .. " does not exist!")
+        end
+      end
+    end
+  end
+end
+EOS
+}
Index: lang/python-pycache/pkg-descr
===================================================================
--- /dev/null
+++ lang/python-pycache/pkg-descr
@@ -0,0 +1 @@
+Recreates pycache on pkg registration.
Index: lang/python310/Makefile
===================================================================
--- lang/python310/Makefile
+++ lang/python310/Makefile
@@ -14,6 +14,7 @@
 LICENSE=	PSFL
 
 LIB_DEPENDS=	libffi.so:devel/libffi
+RUN_DEPENDS=	python-pycache>=0:lang/python-pycache
 
 USES=		compiler:c11 cpe ncurses pathfix pkgconfig readline \
 		shebangfix ssl tar:xz
Index: lang/python311/Makefile
===================================================================
--- lang/python311/Makefile
+++ lang/python311/Makefile
@@ -15,6 +15,7 @@
 LICENSE=	PSFL
 
 LIB_DEPENDS=	libffi.so:devel/libffi
+RUN_DEPENDS=	python-pycache>=0:lang/python-pycache
 
 USES=		compiler:c11 cpe ncurses pathfix pkgconfig readline \
 		shebangfix ssl tar:xz
Index: lang/python37/Makefile
===================================================================
--- lang/python37/Makefile
+++ lang/python37/Makefile
@@ -15,6 +15,7 @@
 
 LIB_DEPENDS=	libffi.so:devel/libffi \
 		libmpdec.so:math/mpdecimal
+RUN_DEPENDS=	python-pycache>=0:lang/python-pycache
 
 USES=		cpe ncurses pathfix pkgconfig readline shebangfix ssl tar:xz
 PATHFIX_MAKEFILEIN=	Makefile.pre.in
Index: lang/python38/Makefile
===================================================================
--- lang/python38/Makefile
+++ lang/python38/Makefile
@@ -14,6 +14,7 @@
 LICENSE=	PSFL
 
 LIB_DEPENDS=	libffi.so:devel/libffi
+RUN_DEPENDS=	python-pycache>=0:lang/python-pycache
 
 USES=		cpe ncurses pathfix pkgconfig readline shebangfix ssl tar:xz
 PATHFIX_MAKEFILEIN=	Makefile.pre.in
Index: lang/python39/Makefile
===================================================================
--- lang/python39/Makefile
+++ lang/python39/Makefile
@@ -14,6 +14,7 @@
 LICENSE=	PSFL
 
 LIB_DEPENDS=	libffi.so:devel/libffi
+RUN_DEPENDS=	python-pycache>=0:lang/python-pycache
 
 USES=		compiler:c11 cpe ncurses pathfix pkgconfig readline \
 		shebangfix ssl tar:xz