Update aksetup

Author: inducer

aksetup_helper.py

@@ -716,7 +716,9 @@ def substitute(substitutions, fname):
     string_var_re = re.compile(r"\$str\{([A-Za-z_0-9]+)\}")
 
     fname_in = fname+".in"
-    lines = open(fname_in, "r").readlines()
+    with open(fname_in, "r") as inf:
+        lines = inf.readlines()
+
     new_lines = []
     for line in lines:
         made_change = True
@@ -746,7 +748,8 @@ def substitute(substitutions, fname):
     new_lines.insert(1, "# DO NOT EDIT THIS FILE -- "
             "it was generated by configure.py\n")
     new_lines.insert(2, "# %s\n" % (" ".join(sys.argv)))
-    open(fname, "w").write("".join(new_lines))
+    with open(fname, "w") as outf:
+        outf.write("".join(new_lines))
 
     from os import stat, chmod
     infile_stat_res = stat(fname_in)

configure.py

@@ -1,6 +1,4 @@
-#! /usr/bin/env python
-
-from __future__ import absolute_import
+#! /usr/bin/env python3
 
 from aksetup_helper import configure_frontend
 configure_frontend()