diff --git a/3rdparty/ext_python/CMakeLists.txt b/3rdparty/ext_python/CMakeLists.txt
index 6496c12368..a18b12a745 100644
--- a/3rdparty/ext_python/CMakeLists.txt
+++ b/3rdparty/ext_python/CMakeLists.txt
@@ -1,77 +1,76 @@
 SET(PREFIX_ext_python "${EXTPREFIX}" )
 if (UNIX)
     if (APPLE)
-    set(PYTHON_VERSION "3.5")
+    set(PYTHON_VERSION "3.8")
     ExternalProject_Add( ext_python
 	    DOWNLOAD_DIR ${EXTERNALS_DOWNLOAD_DIR}
-    	URL http://files.kde.org/krita/build/dependencies/Python-3.5.2.tar.gz
-        URL_MD5 ea334d398990037a4b8be324bd475c83
+    	URL https://www.python.org/ftp/python/3.8.0/Python-3.8.0.tgz
+        URL_MD5 e18a9d1a0a6d858b9787e03fc6fdaa20
         
-        PATCH_COMMAND ${PATCH_COMMAND} -p1 -i ${CMAKE_CURRENT_SOURCE_DIR}/pyport_osx.diff
-            COMMAND ${PATCH_COMMAND} -p1 -i ${CMAKE_CURRENT_SOURCE_DIR}/osx_fixappinstall.diff
+        PATCH_COMMAND ${PATCH_COMMAND} -p1 -i ${CMAKE_CURRENT_SOURCE_DIR}/osx_fixappinstall.diff
 
-        CONFIGURE_COMMAND <SOURCE_DIR>/configure MACOSX_DEPLOYMENT_TARGET=10.11 -prefix=${PREFIX_ext_python} ${GLOBAL_AUTOMAKE_PROFILE}
-            --with-cxx-main=/usr/bin/g++ --without-ensurepip --disable-tests --without-test --without-tests --enable-framework=${PREFIX_ext_python}/lib
+        CONFIGURE_COMMAND <SOURCE_DIR>/configure MACOSX_DEPLOYMENT_TARGET=10.13 --prefix=${PREFIX_ext_python} ${GLOBAL_AUTOMAKE_PROFILE}
+            --without-ensurepip --enable-framework=${PREFIX_ext_python}/lib --enable-optimizations
         BUILD_COMMAND make
         INSTALL_COMMAND make install
             COMMAND ${CMAKE_COMMAND} -E copy ${PREFIX_ext_python}/bin/python3 ${PREFIX_ext_python}/bin/python
             COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/sitecustomize.py ${PREFIX_ext_python}/lib/Python.framework/Versions/Current/lib/python${PYTHON_VERSION}/
             COMMAND ${CMAKE_COMMAND} -E create_symlink ./lib/python${PYTHON_VERSION}/site-packages ${PREFIX_ext_python}/lib/Python.framework/Versions/Current/site-packages
             # CMake FindPythonLib can't find framework libraries, lack of maintainer for Python
             COMMAND find ${PREFIX_ext_python}/lib/Python.framework/Versions/Current/lib -type l -d 1
             | grep -o "[^/]*$"
             | xargs -I FILE ${CMAKE_COMMAND} -E create_symlink ./Python.framework/Python ${PREFIX_ext_python}/lib/FILE
 
         UPDATE_COMMAND ""
 	    ALWAYS 0
     )
     else()
 
     ExternalProject_Add( ext_python
 	    DOWNLOAD_DIR ${EXTERNALS_DOWNLOAD_DIR}
-    	URL http://files.kde.org/krita/build/dependencies/Python-3.5.2.tar.gz
-        URL_MD5 ea334d398990037a4b8be324bd475c83
+    	URL https://www.python.org/ftp/python/3.8.0/Python-3.8.0.tgz
+        URL_MD5 e18a9d1a0a6d858b9787e03fc6fdaa20
         
-        CONFIGURE_COMMAND <SOURCE_DIR>/configure --prefix=${PREFIX_ext_python}  ${GLOBAL_AUTOMAKE_PROFILE} --enable-shared
+        CONFIGURE_COMMAND <SOURCE_DIR>/configure --prefix=${PREFIX_ext_python} ${GLOBAL_AUTOMAKE_PROFILE} --enable-shared
         BUILD_COMMAND make
         INSTALL_COMMAND make install
                         COMMAND ${CMAKE_COMMAND} -E copy ${PREFIX_ext_python}/bin/python3 ${PREFIX_ext_python}/bin/python
 
         UPDATE_COMMAND ""
 	    ALWAYS 0
     )
     endif()
 elseif(MINGW)
     if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
         ExternalProject_Add( ext_python
             DOWNLOAD_DIR ${EXTERNALS_DOWNLOAD_DIR}
-            URL https://www.python.org/ftp/python/3.6.2/python-3.6.2-embed-amd64.zip
-            URL_MD5 0fdfe9f79e0991815d6fc1712871c17f
+            URL https://www.python.org/ftp/python/3.8.0/python-3.8.0-embed-amd64.zip
+            URL_MD5 99cca948512b53fb165084787143ef19
 
             INSTALL_DIR ${PREFIX_ext_python}
             CONFIGURE_COMMAND ""
             BUILD_COMMAND ${CMAKE_COMMAND} -E echo deploying python3 64-bit binary
             INSTALL_COMMAND ${CMAKE_COMMAND} -E copy_directory <SOURCE_DIR>/ ${PREFIX_ext_python}/python
                     COMMAND ${CMAKE_COMMAND} -E copy <SOURCE_DIR>/python3.dll ${PREFIX_ext_python}/bin
-                    COMMAND ${CMAKE_COMMAND} -E copy <SOURCE_DIR>/python36.dll ${PREFIX_ext_python}/bin
+                    COMMAND ${CMAKE_COMMAND} -E copy <SOURCE_DIR>/python38.dll ${PREFIX_ext_python}/bin
                     COMMAND ${CMAKE_COMMAND} -E copy <SOURCE_DIR>/vcruntime140.dll ${PREFIX_ext_python}/bin
             UPDATE_COMMAND ""
         )
     else("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
         ExternalProject_Add( ext_python
             DOWNLOAD_DIR ${EXTERNALS_DOWNLOAD_DIR}
-            URL https://www.python.org/ftp/python/3.6.2/python-3.6.2-embed-win32.zip
-            URL_MD5 2ca4768fdbadf6e670e97857bfab83e8
+            URL https://www.python.org/ftp/python/3.8.0/python-3.8.0-embed-win32.zip
+            URL_MD5 2ec3abf05f3f1046e0dbd1ca5c74ce88
 
             INSTALL_DIR ${PREFIX_ext_python}
             CONFIGURE_COMMAND ""
             BUILD_COMMAND ${CMAKE_COMMAND} -E echo deploying python3 32-bit binary
             INSTALL_COMMAND ${CMAKE_COMMAND} -E copy_directory <SOURCE_DIR>/ ${PREFIX_ext_python}/python
                     COMMAND ${CMAKE_COMMAND} -E copy <SOURCE_DIR>/python3.dll ${PREFIX_ext_python}/bin
-                    COMMAND ${CMAKE_COMMAND} -E copy <SOURCE_DIR>/python36.dll ${PREFIX_ext_python}/bin
+                    COMMAND ${CMAKE_COMMAND} -E copy <SOURCE_DIR>/python38.dll ${PREFIX_ext_python}/bin
                     COMMAND ${CMAKE_COMMAND} -E copy <SOURCE_DIR>/vcruntime140.dll ${PREFIX_ext_python}/bin
             UPDATE_COMMAND ""
         )
     endif("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
 
 endif()
diff --git a/3rdparty/ext_python/osx_fixappinstall.diff b/3rdparty/ext_python/osx_fixappinstall.diff
index 183705be00..ca82901b03 100644
--- a/3rdparty/ext_python/osx_fixappinstall.diff
+++ b/3rdparty/ext_python/osx_fixappinstall.diff
@@ -1,49 +1,47 @@
 diff --git a/configure b/configure
-old mode 100755
-new mode 100644
-index c892a99..97c8f0d
+index 2a933cd..4dfb4fb 100755
 --- a/configure
 +++ b/configure
-@@ -3207,7 +3207,7 @@ if test "${enable_framework+set}" = set; then :
+@@ -3149,7 +3149,7 @@ if test "${enable_framework+set}" = set; then :
  		FRAMEWORKINSTALLLAST="frameworkinstallmaclib frameworkinstallapps frameworkinstallunixtools"
  		FRAMEWORKALTINSTALLLAST="frameworkinstallmaclib frameworkinstallapps frameworkaltinstallunixtools"
  		FRAMEWORKPYTHONW="frameworkpythonw"
 -		FRAMEWORKINSTALLAPPSPREFIX="/Applications"
 +		FRAMEWORKINSTALLAPPSPREFIX="${prefix}/Applications"
  
  		if test "x${prefix}" = "xNONE" ; then
  			FRAMEWORKUNIXTOOLSPREFIX="${ac_default_prefix}"
-@@ -3218,7 +3218,7 @@ if test "${enable_framework+set}" = set; then :
+@@ -3160,7 +3160,7 @@ if test "${enable_framework+set}" = set; then :
  
  		case "${enableval}" in
  		/System*)
 -			FRAMEWORKINSTALLAPPSPREFIX="/Applications"
 +			FRAMEWORKINSTALLAPPSPREFIX="${prefix}/Applications"
  			if test "${prefix}" = "NONE" ; then
  				# See below
  				FRAMEWORKUNIXTOOLSPREFIX="/usr"
-@@ -3226,13 +3226,13 @@ if test "${enable_framework+set}" = set; then :
+@@ -3168,13 +3168,13 @@ if test "${enable_framework+set}" = set; then :
  			;;
  
  		/Library*)
 -			FRAMEWORKINSTALLAPPSPREFIX="/Applications"
 +			FRAMEWORKINSTALLAPPSPREFIX="${prefix}/Applications"
  			;;
  
  		*/Library/Frameworks)
  			MDIR="`dirname "${enableval}"`"
  			MDIR="`dirname "${MDIR}"`"
 -			FRAMEWORKINSTALLAPPSPREFIX="${MDIR}/Applications"
 +			FRAMEWORKINSTALLAPPSPREFIX="${MDIR}${prefix}/Applications"
  
  			if test "${prefix}" = "NONE"; then
  				# User hasn't specified the
-@@ -3246,7 +3246,7 @@ if test "${enable_framework+set}" = set; then :
+@@ -3188,7 +3188,7 @@ if test "${enable_framework+set}" = set; then :
  			;;
  
  		*)
 -			FRAMEWORKINSTALLAPPSPREFIX="/Applications"
 +			FRAMEWORKINSTALLAPPSPREFIX="${prefix}/Applications"
  			;;
  		esac
- 
+ 
\ No newline at end of file
diff --git a/3rdparty/ext_python/pyport_osx.diff b/3rdparty/ext_python/pyport_osx.diff
deleted file mode 100644
index 14c792a337..0000000000
--- a/3rdparty/ext_python/pyport_osx.diff
+++ /dev/null
@@ -1,25 +0,0 @@
-diff --git a/Include/pyport.h b/Include/pyport.h
-index 66e00d4..89f7c0b 100644
---- a/Include/pyport.h
-+++ b/Include/pyport.h
-@@ -688,6 +688,12 @@ extern pid_t forkpty(int *, char *, struct termios *, struct winsize *);
- #endif
- 
- #ifdef _PY_PORT_CTYPE_UTF8_ISSUE
-+#ifndef __cplusplus
-+ /* The workaround below is unsafe in C++ because
-+  * the <locale> defines these symbols as real functions,
-+  * with a slightly different signature.
-+  * See issue #10910
-+  */
- #include <ctype.h>
- #include <wctype.h>
- #undef isalnum
-@@ -705,6 +711,7 @@ extern pid_t forkpty(int *, char *, struct termios *, struct winsize *);
- #undef toupper
- #define toupper(c) towupper(btowc(c))
- #endif
-+#endif
- 
- 
- /* Declarations for symbol visibility.