deletemergesquashed py3

bin/git-delete-squashed-and-merged-branches

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
 # prereqs:
@@ -41,7 +41,7 @@ def get_branch_heads():
     branch_to_sha = []
     # %09 is a tab, which we later split on
     refsoutput = subprocess.check_output(["git", "for-each-ref", "--sort=-committerdate", "refs/heads/", "--format=%(refname)%09%(objectname)"])
-    lines = refsoutput.split('\n')
+    lines = refsoutput.decode().split('\n')
 
     for line in lines:
         if not line:
@@ -59,10 +59,10 @@ def main():
     retval = 0
     items = get_branch_heads()
 
-    print 'Looking at {} total local heads, from newest to oldest.'.format(len(items))
+    print(f"Looking at {len(items)} total local heads, from newest to oldest.")
 
     for [branch, sha] in items:
-        print '\n'
+        print('\n')
         time.sleep(2) # search only allows 30 req/min. https://developer.github.com/v3/search/#rate-limit
         res = G.search_issues(sha)
         shortsha = sha[0:7]
@@ -81,7 +81,7 @@ def main():
             msg = '🔃  All PRs still open'
             retval = 2
 
-        print ('{}{}{} ({}):\n{}'.format(yellow, branch, reset, shortsha, msg))
+        print('{}{}{} ({}):\n{}'.format(yellow, branch, reset, shortsha, msg))
 
         if retval == 0:
             if DRY_RUN: