Fix asv errors and condition

Author: mroeschke

asv_bench/benchmarks/timeseries.py

@@ -386,23 +386,20 @@ def time_format_exact(self):
     def time_format_no_exact(self):
         to_datetime(self.s, format='%d%b%y', exact=False)
 
-    def time_cache_with_unique_seconds_and unit(self):
-    	to_datetime(self.unique_numeric_seconds, unit='s')
+    def time_cache_with_unique_seconds_and_unit(self):
+        to_datetime(self.unique_numeric_seconds, unit='s')
 
     def time_cache_with_dup_seconds_and_unit(self):
-    	to_datetime(self.dup_numeric_seconds, unit='s')
+        to_datetime(self.dup_numeric_seconds, unit='s')
 
     def time_cache_with_dup_string_dates(self):
-    	to_datetime(self.dup_string_dates)
+        to_datetime(self.dup_string_dates)
 
     def time_cache_with_dup_string_dates_and_format(self):
-    	to_datetime(self.dup_string_dates, format='%Y-%m-%d')
+        to_datetime(self.dup_string_dates, format='%Y-%m-%d')
 
     def time_cache_with_dup_string_tzoffset_dates(self):
-    	to_datetime(self.dup_string_with_tz)
-
-    def time_cache_with_dup_string_tzoffset_dates_and_format(self):
-    	to_datetim(self.dup_string_with_tz, format='%Y-%m-%d %H:%M:%S%z')
+        to_datetime(self.dup_string_with_tz)
 
 
 class Offsets(object):

pandas/core/tools/datetimes.py

@@ -521,13 +521,12 @@ def _convert_listlike(arg, box, format, name=None, tz=tz):
         arg = arg + offset
 
     convert_cache = None
-    if cache and is_list_like(arg):
-        if len(arg) >= 1000:
-            unique_dates = algorithms.unique(arg)
-            if len(unique_dates) != len(arg):
-                from pandas import Series
-                cache_dates = _convert_listlike(unique_dates, False, format)
-                convert_cache = Series(cache_dates, index=unique_dates)
+    if cache and is_list_like(arg) and len(arg) >= 1000:
+        unique_dates = algorithms.unique(arg)
+        if len(unique_dates) != len(arg):
+            from pandas import Series
+            cache_dates = _convert_listlike(unique_dates, False, format)
+            convert_cache = Series(cache_dates, index=unique_dates)
 
     if isinstance(arg, tslib.Timestamp):
         result = arg