From 857f860d5628d9d9a60eb0ab858647211fb8bb01 Mon Sep 17 00:00:00 2001
From: Sergey Fedoseev <fedoseev.sergey@gmail.com>
Date: Mon, 9 Jul 2018 20:25:11 +0500
Subject: [PATCH] Removed unneded str() calls prior to mark_safe(); simplified
 mark_safe().

---
 django/template/defaultfilters.py | 2 +-
 django/utils/numberformat.py      | 2 +-
 django/utils/safestring.py        | 6 ++----
 3 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/django/template/defaultfilters.py b/django/template/defaultfilters.py
index ef7ae8679d..53b9ade716 100644
--- a/django/template/defaultfilters.py
+++ b/django/template/defaultfilters.py
@@ -448,7 +448,7 @@ def safeseq(value):
     individually, as safe, after converting them to strings. Return a list
     with the results.
     """
-    return [mark_safe(str(obj)) for obj in value]
+    return [mark_safe(obj) for obj in value]
 
 
 @register.filter(is_safe=True)
diff --git a/django/utils/numberformat.py b/django/utils/numberformat.py
index c6f9af6893..4dc37ae22b 100644
--- a/django/utils/numberformat.py
+++ b/django/utils/numberformat.py
@@ -23,7 +23,7 @@ def format(number, decimal_sep, decimal_pos=None, grouping=0, thousand_sep='',
     use_grouping = use_grouping and grouping != 0
     # Make the common case fast
     if isinstance(number, int) and not use_grouping and not decimal_pos:
-        return mark_safe(str(number))
+        return mark_safe(number)
     # sign
     sign = ''
     if isinstance(number, Decimal):
diff --git a/django/utils/safestring.py b/django/utils/safestring.py
index 2da467a079..5128add622 100644
--- a/django/utils/safestring.py
+++ b/django/utils/safestring.py
@@ -5,7 +5,7 @@ that the producer of the string has already turned characters that should not
 be interpreted by the HTML engine (e.g. '<') into the appropriate entities.
 """
 
-from django.utils.functional import Promise, wraps
+from django.utils.functional import wraps
 
 
 class SafeData:
@@ -79,8 +79,6 @@ def mark_safe(s):
     """
     if hasattr(s, '__html__'):
         return s
-    if isinstance(s, (str, Promise)):
-        return SafeText(s)
     if callable(s):
         return _safety_decorator(mark_safe, s)
-    return SafeText(str(s))
+    return SafeText(s)