setup.py: stop using deprecated function

c4865980 · Christoph Groth · 27fa8314 · c4865980
Commit c4865980 authored Dec 08, 2015 by Christoph Groth
--- a/setup.py
+++ b/setup.py
@@ -307,7 +307,7 @@ def extensions():
    config = configparser.ConfigParser()
    try:
        with open(CONFIG_FILE) as f:
-            config.readfp(f)
+            config.read_file(f)
    except IOError:
        config_file_present = False
    else: