diff -ur ceph-12.2.5/src/brag/client/ceph-brag ceph-12.2.5-mod/src/brag/client/ceph-brag
--- ceph-12.2.5/src/brag/client/ceph-brag	2018-04-23 18:18:33.000000000 +0200
+++ ceph-12.2.5-mod/src/brag/client/ceph-brag	2018-05-22 21:06:32.952813105 +0200
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 from __future__ import print_function
 
diff -ur ceph-12.2.5/src/ceph-create-keys ceph-12.2.5-mod/src/ceph-create-keys
--- ceph-12.2.5/src/ceph-create-keys	2018-04-23 18:18:33.000000000 +0200
+++ ceph-12.2.5-mod/src/ceph-create-keys	2018-05-22 21:09:49.103398176 +0200
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 import argparse
 import errno
 import json
diff -ur ceph-12.2.5/src/ceph-detect-init/ceph_detect_init/main.py ceph-12.2.5-mod/src/ceph-detect-init/ceph_detect_init/main.py
--- ceph-12.2.5/src/ceph-detect-init/ceph_detect_init/main.py	2018-04-23 18:18:33.000000000 +0200
+++ ceph-12.2.5-mod/src/ceph-detect-init/ceph_detect_init/main.py	2018-05-22 21:09:14.943993086 +0200
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # Copyright (C) 2015 <contact@redhat.com>
 # Copyright (C) 2015 SUSE LINUX GmbH
diff -ur ceph-12.2.5/src/ceph-disk/ceph_disk/main.py ceph-12.2.5-mod/src/ceph-disk/ceph_disk/main.py
--- ceph-12.2.5/src/ceph-disk/ceph_disk/main.py	2018-04-23 18:18:33.000000000 +0200
+++ ceph-12.2.5-mod/src/ceph-disk/ceph_disk/main.py	2018-05-22 21:11:02.606118074 +0200
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # Copyright (C) 2015, 2016, 2017 Red Hat <contact@redhat.com>
 # Copyright (C) 2014 Inktank <info@inktank.com>
diff -ur ceph-12.2.5/src/ceph-rest-api ceph-12.2.5-mod/src/ceph-rest-api
--- ceph-12.2.5/src/ceph-rest-api	2018-04-23 18:18:33.000000000 +0200
+++ ceph-12.2.5-mod/src/ceph-rest-api	2018-05-22 21:10:50.202334095 +0200
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # vim: ts=4 sw=4 smarttab expandtab
 
 import argparse
diff -ur ceph-12.2.5/src/ceph-volume/bin/ceph-volume ceph-12.2.5-mod/src/ceph-volume/bin/ceph-volume
--- ceph-12.2.5/src/ceph-volume/bin/ceph-volume	2018-04-23 18:18:33.000000000 +0200
+++ ceph-12.2.5-mod/src/ceph-volume/bin/ceph-volume	2018-05-22 21:07:43.104592535 +0200
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 from ceph_volume import main
 
diff -ur ceph-12.2.5/src/ceph-volume/bin/ceph-volume-systemd ceph-12.2.5-mod/src/ceph-volume/bin/ceph-volume-systemd
--- ceph-12.2.5/src/ceph-volume/bin/ceph-volume-systemd	2018-04-23 18:18:33.000000000 +0200
+++ ceph-12.2.5-mod/src/ceph-volume/bin/ceph-volume-systemd	2018-05-22 21:07:46.628531163 +0200
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 from ceph_volume.systemd import main
 
diff -ur ceph-12.2.5/src/mount.fuse.ceph ceph-12.2.5-mod/src/mount.fuse.ceph
--- ceph-12.2.5/src/mount.fuse.ceph	2018-04-23 18:18:33.000000000 +0200
+++ ceph-12.2.5-mod/src/mount.fuse.ceph	2018-05-22 21:08:06.355187609 +0200
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 '''
 Helper to mount ceph-fuse from /etc/fstab.  To use, add an entry
 like: