diff -Nru gnumeric-1.12.46/debian/changelog gnumeric-1.12.46/debian/changelog
--- gnumeric-1.12.46/debian/changelog	2019-11-13 06:13:47.000000000 +0000
+++ gnumeric-1.12.46/debian/changelog	2020-03-18 08:25:48.000000000 +0000
@@ -1,3 +1,10 @@
+gnumeric (1.12.46-1ubuntu2) focal; urgency=medium
+
+  * Build-depend on python-all-dev.
+  * Build using python2.
+
+ -- Matthias Klose <doko@ubuntu.com>  Wed, 18 Mar 2020 09:25:48 +0100
+
 gnumeric (1.12.46-1) unstable; urgency=medium
 
   * New upstream release.
diff -Nru gnumeric-1.12.46/debian/control gnumeric-1.12.46/debian/control
--- gnumeric-1.12.46/debian/control	2019-11-13 06:13:47.000000000 +0000
+++ gnumeric-1.12.46/debian/control	2020-03-18 08:25:45.000000000 +0000
@@ -23,7 +23,7 @@
               ,libxml-parser-perl
               ,libxml2-dev
               ,libxml2-utils
-              ,python-dev
+              ,python-all-dev
               ,python-gi-dev
               ,pxlib-dev
               ,w3c-sgml-lib
diff -Nru gnumeric-1.12.46/debian/rules gnumeric-1.12.46/debian/rules
--- gnumeric-1.12.46/debian/rules	2019-11-13 06:13:47.000000000 +0000
+++ gnumeric-1.12.46/debian/rules	2020-03-18 08:25:48.000000000 +0000
@@ -56,7 +56,7 @@
 features+= --with-perl
 
 # The Python plugin
-features+= PYTHON=/usr/bin/python --with-python
+features+= PYTHON=/usr/bin/python2 --with-python
 
 # Don't build a PDF of the documentation.
 features+= --disable-pdfdocs