From 71a54e369dfd86622c7fe040c3b1411b2f294694 Mon Sep 17 00:00:00 2001
From: Reto Zingg <g.d0b3rm4n@gmail.com>
Date: Thu, 25 Jun 2020 15:52:59 +0300
Subject: [PATCH] Do not apply format to non numbers

This addresses the issue https://github.com/seperman/deepdiff/issues/200
---
 deepdiff/helper.py       |  2 ++
 tests/test_diff_other.py | 12 ++++++++++++
 2 files changed, 14 insertions(+)

diff --git a/deepdiff/helper.py b/deepdiff/helper.py
index ff463fed..768c075a 100644
--- a/deepdiff/helper.py
+++ b/deepdiff/helper.py
@@ -340,6 +340,8 @@ def number_to_string(number, significant_digits, number_format_notation="f"):
         with localcontext() as ctx:
             ctx.prec = len(tup.digits) + tup.exponent + significant_digits
             number = number.quantize(Decimal('0.' + '0' * significant_digits))
+    elif not isinstance(number, numbers):
+        return number
     result = (using % significant_digits).format(number)
     # Special case for 0: "-0.00" should compare equal to "0.00"
     if set(result) <= ZERO_DECIMAL_CHARACTERS:
diff --git a/tests/test_diff_other.py b/tests/test_diff_other.py
index 1589f76d..710c34f2 100644
--- a/tests/test_diff_other.py
+++ b/tests/test_diff_other.py
@@ -80,3 +80,15 @@ def test_path_cache(self):
         path1 = diff['values_changed'][0].path()
         path2 = diff['values_changed'][0].path()
         assert 'root[0]' == path1 == path2
+
+    def test_bool_str(self):
+        t1 = {'key1': True}
+        t2 = {'key1': 'Yes'}
+        diff = DeepDiff(t1, t2, ignore_type_in_groups=[(bool, str)],
+                        ignore_numeric_type_changes=True)
+        expected = {'values_changed':
+                        {"root['key1']":
+                             {'new_value': 'Yes', 'old_value': True}
+                        }
+                    }
+        assert diff == expected