diff --git a/tests/python/ipnbdoctest.py b/tests/python/ipnbdoctest.py
index d5c405c238f7cb94b6c91ea276ef4cd6f6b910d9..eb4256cf23acb27aa88f1ff7860c3bb5044d3ab0 100755
--- a/tests/python/ipnbdoctest.py
+++ b/tests/python/ipnbdoctest.py
@@ -22,9 +22,9 @@ except ImportError:
     print('Python 3.x is needed to run this script.')
     sys.exit(77)
 
-import imp
+import importlib
 try:
-    imp.find_module('IPython')
+    importlib.util.find_spec('IPython')
 except:
     print('IPython is needed to run this script.')
     sys.exit(77)
diff --git a/tests/python/ltlparse.py b/tests/python/ltlparse.py
index 96b05c58cc39382200f07a8001c9aff41b50d5ce..50fc095c482d5bd17a197333d41d62c214597d55 100755
--- a/tests/python/ltlparse.py
+++ b/tests/python/ltlparse.py
@@ -25,7 +25,7 @@ import spot
 
 e = spot.default_environment.instance()
 
-l = ['GFa', 'a U (((b)) xor c)', '!(FFx <=> Fx)', 'a \/ a \/ b \/ a \/ a'];
+l = ['GFa', 'a U (((b)) xor c)', '!(FFx <=> Fx)', 'a \\/ a \\/ b \\/ a \\/ a']
 
 for str1 in l:
     pf = spot.parse_infix_psl(str1, e, False)