diff --git a/django/utils/dateparse.py b/django/utils/dateparse.py
index 3ce475f5ea..532bb259c3 100644
--- a/django/utils/dateparse.py
+++ b/django/utils/dateparse.py
@@ -1,58 +1,51 @@
 """Functions to parse datetime objects."""
 
 # We're using regular expressions rather than time.strptime because:
-# - they provide both validation and parsing,
-# - they're more flexible for datetimes,
-# - the date/datetime/time constructors produce friendlier error messages.
-
+# - They provide both validation and parsing.
+# - They're more flexible for datetimes.
+# - The date/datetime/time constructors produce friendlier error messages.
 
 import datetime
 import re
-
 from django.utils.timezone import utc
 from django.utils.tzinfo import FixedOffset
 
-
 date_re = re.compile(
-        r'(?P<year>\d{4})-(?P<month>\d{1,2})-(?P<day>\d{1,2})$'
+    r'(?P<year>\d{4})-(?P<month>\d{1,2})-(?P<day>\d{1,2})$'
 )
 
-
 datetime_re = re.compile(
-        r'(?P<year>\d{4})-(?P<month>\d{1,2})-(?P<day>\d{1,2})'
-        r'[T ](?P<hour>\d{1,2}):(?P<minute>\d{1,2})'
-        r'(?::(?P<second>\d{1,2})(?:\.(?P<microsecond>\d{1,6})\d{0,6})?)?'
-        r'(?P<tzinfo>Z|[+-]\d{1,2}:\d{1,2})?$'
+    r'(?P<year>\d{4})-(?P<month>\d{1,2})-(?P<day>\d{1,2})'
+    r'[T ](?P<hour>\d{1,2}):(?P<minute>\d{1,2})'
+    r'(?::(?P<second>\d{1,2})(?:\.(?P<microsecond>\d{1,6})\d{0,6})?)?'
+    r'(?P<tzinfo>Z|[+-]\d{1,2}:\d{1,2})?$'
 )
 
-
 time_re = re.compile(
-        r'(?P<hour>\d{1,2}):(?P<minute>\d{1,2})'
-        r'(?::(?P<second>\d{1,2})(?:\.(?P<microsecond>\d{1,6})\d{0,6})?)?'
+    r'(?P<hour>\d{1,2}):(?P<minute>\d{1,2})'
+    r'(?::(?P<second>\d{1,2})(?:\.(?P<microsecond>\d{1,6})\d{0,6})?)?'
 )
 
-
 def parse_date(value):
-    """Parse a string and return a datetime.date.
+    """Parses a string and return a datetime.date.
 
-    Raise ValueError if the input is well formatted but not a valid date.
-    Return None if the input isn't well formatted.
+    Raises ValueError if the input is well formatted but not a valid date.
+    Returns None if the input isn't well formatted.
     """
     match = date_re.match(value)
     if match:
         kw = dict((k, int(v)) for k, v in match.groupdict().iteritems())
         return datetime.date(**kw)
 
-
 def parse_time(value):
-    """Parse a string and return a datetime.time.
+    """Parses a string and return a datetime.time.
 
     This function doesn't support time zone offsets.
 
     Sub-microsecond precision is accepted, but ignored.
 
-    Raise ValueError if the input is well formatted but not a valid time.
-    Return None if the input isn't well formatted, in particular if it
+    Raises ValueError if the input is well formatted but not a valid time.
+    Returns None if the input isn't well formatted, in particular if it
     contains an offset.
     """
     match = time_re.match(value)
@@ -63,17 +56,16 @@ def parse_time(value):
         kw = dict((k, int(v)) for k, v in kw.iteritems() if v is not None)
         return datetime.time(**kw)
 
-
 def parse_datetime(value):
-    """Parse a string and return a datetime.datetime.
+    """Parses a string and return a datetime.datetime.
 
     This function supports time zone offsets. When the input contains one,
     the output uses an instance of FixedOffset as tzinfo.
 
     Sub-microsecond precision is accepted, but ignored.
 
-    Raise ValueError if the input is well formatted but not a valid datetime.
-    Return None if the input isn't well formatted.
+    Raises ValueError if the input is well formatted but not a valid datetime.
+    Returns None if the input isn't well formatted.
     """
     match = datetime_re.match(value)
     if match: