diff --git a/contrib/packaging/buildrpm b/contrib/packaging/buildrpm
--- a/contrib/packaging/buildrpm
+++ b/contrib/packaging/buildrpm
@@ -6,7 +6,7 @@
 
 BUILD=1
 RPMBUILDDIR="$PWD/rpmbuild"
-PYTHONEXE=python2
+PYTHONEXE=python3
 
 while [ "$1" ]; do
     case "$1" in
diff --git a/contrib/packaging/docker/fedora29 b/contrib/packaging/docker/fedora29
--- a/contrib/packaging/docker/fedora29
+++ b/contrib/packaging/docker/fedora29
@@ -7,8 +7,8 @@ RUN dnf install -y \
 	gcc \
 	gettext \
 	make \
-	python-devel \
-	python-docutils \
+	python3-devel \
+	python3-docutils \
 	rpm-build
 
 # For creating repo meta data
diff --git a/contrib/packaging/mercurial.spec b/contrib/packaging/mercurial.spec
--- a/contrib/packaging/mercurial.spec
+++ b/contrib/packaging/mercurial.spec
@@ -2,7 +2,7 @@
 
 %define withpython %{nil}
 
-%global pythonexe python2
+%global pythonexe python3
 
 %if "%{?withpython}"
 
@@ -39,8 +39,8 @@ BuildRequires: make, gcc, gettext
 %if "%{?withpython}"
 BuildRequires: readline-devel, openssl-devel, ncurses-devel, zlib-devel, bzip2-devel
 %else
-BuildRequires: python >= %{pythonver}, python-devel, python-docutils >= 0.5
-Requires: python >= %{pythonver}
+BuildRequires: %{pythonexe} >= %{pythonver}, %{pythonexe}-devel, %{pythonexe}-docutils >= 0.5
+Requires: %{pythonexe} >= %{pythonver}
 %endif
 # The hgk extension uses the wish tcl interpreter, but we don't enforce it
 #Requires: tk