apply pyupgrade and f-strings

1 files changed, 5 insertions, 3 deletions

diff --git a/docs/api.rst b/docs/api.rst
index 501a2c6d..075bcc6a 100644
--- a/docs/api.rst
+++ b/docs/api.rst
@@ -675,12 +675,14 @@ enabled::
     import re
     from jinja2 import evalcontextfilter, Markup, escape
 
-    _paragraph_re = re.compile(r'(?:\r\n|\r(?!\n)|\n){2,}')
+    _paragraph_re = re.compile(r"(?:\r\n|\r(?!\n)|\n){2,}")
 
     @evalcontextfilter
     def nl2br(eval_ctx, value):
-        result = u'\n\n'.join(u'<p>%s</p>' % p.replace('\n', Markup('<br>\n'))
-                              for p in _paragraph_re.split(escape(value)))
+        result = "\n\n".join(
+            f"<p>{p.replace('\n', Markup('<br>\n'))}</p>"
+            for p in _paragraph_re.split(escape(value))
+        )
         if eval_ctx.autoescape:
             result = Markup(result)
         return result