tools: use python3 (#274)

* tools: use python3

Switch tools/ to use python3 instead of python.  At minimum this
fixes building deb on python3 only releases like Focal. Applied
via shell commands:

 $ grep 'usr/bin/.*python' tools/* 2>/dev/null | \
     grep -v python3 | awk -F':' '{print $1}' | \
     xargs -i sed -i -e '0,/python/s/python/python3/' {}

* Use /usr/bin/env python3 to be virtualenv friendly

7 files changed, 7 insertions, 7 deletions

diff --git a/tools/ccfg-merge-debug b/tools/ccfg-merge-debug
index 1f08e0cb..59c573af 100755
--- a/tools/ccfg-merge-debug
+++ b/tools/ccfg-merge-debug
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python3
 
 from cloudinit import handlers
 from cloudinit.handlers import cloud_config as cc_part
diff --git a/tools/make-mime.py b/tools/make-mime.py
index d321479b..e0022302 100755
--- a/tools/make-mime.py
+++ b/tools/make-mime.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python3
 
 import argparse
 import sys
diff --git a/tools/mock-meta.py b/tools/mock-meta.py
index 724f7fc4..a58e0260 100755
--- a/tools/mock-meta.py
+++ b/tools/mock-meta.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python3
 
 # Provides a somewhat random, somewhat compat, somewhat useful mock version of
 # http://docs.amazonwebservices.com
diff --git a/tools/pipremove b/tools/pipremove
index f8f4ff11..e1213edd 100755
--- a/tools/pipremove
+++ b/tools/pipremove
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 import subprocess
 import sys
 
diff --git a/tools/read-dependencies b/tools/read-dependencies
index b4656e69..75d08a34 100755
--- a/tools/read-dependencies
+++ b/tools/read-dependencies
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 """List pip dependencies or system package dependencies for cloud-init."""
 
 # You might be tempted to rewrite this as a shell script, but you
diff --git a/tools/read-version b/tools/read-version
index 92e9fc96..02c90643 100755
--- a/tools/read-version
+++ b/tools/read-version
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import os
 import json
diff --git a/tools/validate-yaml.py b/tools/validate-yaml.py
index a57ea847..d8bbcfcb 100755
--- a/tools/validate-yaml.py
+++ b/tools/validate-yaml.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 """Try to read a YAML file and report any errors.
 """