Replaced an antiquated pattern.

Thanks Lennart Regebro for pointing it out.

3 files changed, 3 insertions, 3 deletions

diff --git a/django/forms/forms.py b/django/forms/forms.py
index f3a0fe6b38..b231de421a 100644
--- a/django/forms/forms.py
+++ b/django/forms/forms.py
@@ -523,7 +523,7 @@ class BoundField(object):
         widget = self.field.widget
         id_ = widget.attrs.get('id') or self.auto_id
         if id_:
-            attrs = attrs and flatatt(attrs) or ''
+            attrs = flatatt(attrs) if attrs else ''
             contents = format_html('<label for="{0}"{1}>{2}</label>',
                                    widget.id_for_label(id_), attrs, contents
                                    )
diff --git a/django/forms/formsets.py b/django/forms/formsets.py
index 2bd11d9f53..d421770093 100644
--- a/django/forms/formsets.py
+++ b/django/forms/formsets.py
@@ -119,7 +119,7 @@ class BaseFormSet(object):
             return self.management_form.cleaned_data[INITIAL_FORM_COUNT]
         else:
             # Use the length of the initial data if it's there, 0 otherwise.
-            initial_forms = self.initial and len(self.initial) or 0
+            initial_forms = len(self.initial) if self.initial else 0
         return initial_forms
 
     def _construct_forms(self):
diff --git a/django/forms/widgets.py b/django/forms/widgets.py
index e72ab014b8..aca4a457af 100644
--- a/django/forms/widgets.py
+++ b/django/forms/widgets.py
@@ -775,7 +775,7 @@ class MultiWidget(Widget):
     You'll probably want to use this class with MultiValueField.
     """
     def __init__(self, widgets, attrs=None):
-        self.widgets = [isinstance(w, type) and w() or w for w in widgets]
+        self.widgets = [w() if isinstance(w, type) else w for w in widgets]
         super(MultiWidget, self).__init__(attrs)
 
     def render(self, name, value, attrs=None):