diff --git a/src/_pytest/assertion/util.py b/src/_pytest/assertion/util.py
index 7a6613bfd..cc8967ed3 100644
--- a/src/_pytest/assertion/util.py
+++ b/src/_pytest/assertion/util.py
@@ -338,8 +338,8 @@ def _compare_eq_iterable(
         lines_right = len(right_formatting)
 
         if lines_left > 1 or lines_right > 1:
-        _surrounding_parens_on_own_lines(left_formatting)
-        _surrounding_parens_on_own_lines(right_formatting)
+            _surrounding_parens_on_own_lines(left_formatting)
+            _surrounding_parens_on_own_lines(right_formatting)
     else:
         left_formatting = PrettyPrinter().pformat(left).splitlines()
         right_formatting = PrettyPrinter().pformat(right).splitlines()
@@ -359,6 +359,18 @@ def _compare_eq_iterable(
     return explanation
 
 
+def _surrounding_parens_on_own_lines(lines: List[str]) -> None:
+    """Move opening/closing parenthesis/bracket to own lines."""
+    opening = lines[0][:1]
+    if opening in ["(", "[", "{"]:
+        lines[0] = " " + lines[0][1:]
+        lines[:] = [opening] + lines
+    closing = lines[-1][-1:]
+    if closing in [")", "]", "}"]:
+        lines[-1] = lines[-1][:-1] + ","
+        lines[:] = lines + [closing]
+
+
 def _is_empty_vs_non_empty(left: Iterable[Any], right: Iterable[Any]) -> bool:
     is_left_empty = not any(left) if isinstance(left, Iterable) else not left
     is_right_empty = not any(right) if isinstance(right, Iterable) else not right
diff --git a/testing/test_assertion.py b/testing/test_assertion.py
index f3e8ae249..d7fd51a1e 100644
--- a/testing/test_assertion.py
+++ b/testing/test_assertion.py
@@ -416,14 +416,17 @@ class TestAssert_reprcompare:
 
         assert callequal(m1, []) == [
             "['This is som...e full diff.'] == []",
+            "",
             "Left contains one more item: 'This is some dummy test which shows the "
             "strange way in which Pycharm displays the full diff.'",
             "Use -v to get more diff",
         ]
         assert callequal(m1, [], verbose=True) == [
             "['This is som...e full diff.'] == []",
+            "",
             "Left contains one more item: 'This is some dummy test which shows the "
             "strange way in which Pycharm displays the full diff.'",
+            "",
             "Full diff:",
             "- []",
             "+ ['This is some dummy test which shows the strange way in which Pycharm "
@@ -432,6 +435,7 @@ class TestAssert_reprcompare:
 
         assert callequal(m2, []) == [
             "['This is som...e full diff.'] == []",
+            "",
             "Left contains one more item: 'This is some dummy test which shows the "
             "strange way in which Pycharm displays the full diff.This is some dummy test "
             "which shows the strange way in which Pycharm displays the full diff.'",
@@ -440,9 +444,11 @@ class TestAssert_reprcompare:
 
         assert callequal(m2, [], verbose=True) == [
             "['This is som...e full diff.'] == []",
+            "",
             "Left contains one more item: 'This is some dummy test which shows the "
             "strange way in which Pycharm displays the full diff.This is some dummy test "
             "which shows the strange way in which Pycharm displays the full diff.'",
+            "" "",
             "Full diff:",
             "- []",
             "+ ['This is some dummy test which shows the strange way in which Pycharm "
@@ -452,15 +458,18 @@ class TestAssert_reprcompare:
 
         assert callequal(m3, []) == [
             "['This is som...e full diff.'] == []",
+            "",
             "Left contains 2 more items, first extra item: 'This is some dummy test which shows the strange way in "
             "which Pycharm displays the full diff.'",
-            "Use -v to get more diff",
+            "" "Use -v to get more diff",
         ]
 
         assert callequal(m3, [], verbose=True) == [
             "['This is som...e full diff.'] == []",
+            "",
             "Left contains 2 more items, first extra item: 'This is some dummy test which shows the strange way in "
             "which Pycharm displays the full diff.'",
+            "",
             "Full diff:",
             "  [",
             "-  ,",