diff --git a/runtime/Python2/src/antlr4/TokenStreamRewriter.py b/runtime/Python2/src/antlr4/TokenStreamRewriter.py
index 23bb0d40a..1adf82ef8 100644
--- a/runtime/Python2/src/antlr4/TokenStreamRewriter.py
+++ b/runtime/Python2/src/antlr4/TokenStreamRewriter.py
@@ -163,7 +163,7 @@ class TokenStreamRewriter(object):
                     rop.index = min(prevRop.index, rop.index)
                     rop.last_index = min(prevRop.last_index, rop.last_index)
                     print('New rop {}'.format(rop))
-                elif not all((isDisjoint, isSame)):
+                elif (not(isDisjoint) and not(isSame)):
                     raise ValueError("replace op boundaries of {} overlap with previous {}".format(rop, prevRop))
 
         # Walk inserts before
diff --git a/runtime/Python3/src/antlr4/TokenStreamRewriter.py b/runtime/Python3/src/antlr4/TokenStreamRewriter.py
index d714d9fe6..bed274c65 100644
--- a/runtime/Python3/src/antlr4/TokenStreamRewriter.py
+++ b/runtime/Python3/src/antlr4/TokenStreamRewriter.py
@@ -162,7 +162,7 @@ class TokenStreamRewriter(object):
                     rop.index = min(prevRop.index, rop.index)
                     rop.last_index = min(prevRop.last_index, rop.last_index)
                     print('New rop {}'.format(rop))
-                elif not all((isDisjoint, isSame)):
+                elif (not(isDisjoint) and not(isSame)):
                     raise ValueError("replace op boundaries of {} overlap with previous {}".format(rop, prevRop))
 
         # Walk inserts
@@ -249,4 +249,4 @@ class TokenStreamRewriter(object):
         def __str__(self):
             if self.text:
                 return '<ReplaceOp@{}..{}:"{}">'.format(self.tokens.get(self.index), self.tokens.get(self.last_index),
-                                                        self.text)
\ No newline at end of file
+                                                        self.text)