--- blockdiag-1.5.4/src/blockdiag/tests/test_utils_fontmap.py.orig	2018-07-22 13:48:38.000000000 +0200
+++ blockdiag-1.5.4/src/blockdiag/tests/test_utils_fontmap.py	2021-02-06 12:31:08.863287467 +0100
@@ -223,7 +223,13 @@
         _config = u("[fontmap]\nsansserif: %s\nsansserif: %s\n") % \
                   (self.fontpath[0], self.fontpath[1])
         config = StringIO(_config)
-        if sys.version_info[0] == 2:
+        has_configparser = False
+        try:
+            import configparser
+            has_configparser = True
+        except ImportError:
+            pass
+        if (sys.version_info[0] == 2) and not has_configparser:
             fmap = FontMap(config)
 
             font1 = fmap.find()