CLN: Some code cleanups

pandas/_libs/indexing.pyx

@@ -1,7 +1,6 @@
 cdef class _NDFrameIndexerBase:
     """
-    A base class for _NDFrameIndexer for fast instantiation and attribute
-    access.
+    A base class for _NDFrameIndexer for fast instantiation and attribute access.
     """
     cdef public object obj, name, _ndim
 

pandas/_libs/sparse.pyx

@@ -188,8 +188,7 @@ cdef class IntIndex(SparseIndex):
             return -1
 
     @cython.wraparound(False)
-    cpdef ndarray[int32_t] lookup_array(self, ndarray[
-            int32_t, ndim=1] indexer):
+    cpdef ndarray[int32_t] lookup_array(self, ndarray[int32_t, ndim=1] indexer):
         """
         Vectorized lookup, returns ndarray[int32_t]
         """
@@ -424,12 +423,9 @@ cdef class BlockIndex(SparseIndex):
         """
         Intersect two BlockIndex objects
 
-        Parameters
-        ----------
-
         Returns
         -------
-        intersection : BlockIndex
+        BlockIndex
         """
         cdef:
             BlockIndex y
@@ -518,7 +514,7 @@ cdef class BlockIndex(SparseIndex):
 
         Returns
         -------
-        union : BlockIndex
+        BlockIndex
         """
         return BlockUnion(self, y.to_block_index()).result
 
@@ -548,8 +544,7 @@ cdef class BlockIndex(SparseIndex):
         return -1
 
     @cython.wraparound(False)
-    cpdef ndarray[int32_t] lookup_array(self, ndarray[
-            int32_t, ndim=1] indexer):
+    cpdef ndarray[int32_t] lookup_array(self, ndarray[int32_t, ndim=1] indexer):
         """
         Vectorized lookup, returns ndarray[int32_t]
         """

pandas/_libs/tslibs/conversion.pyx

@@ -84,12 +84,11 @@ def ensure_datetime64ns(arr: ndarray, copy: bool=True):
     Parameters
     ----------
     arr : ndarray
-    copy : boolean, default True
+    copy : bool, default True
 
     Returns
     -------
-    result : ndarray with dtype datetime64[ns]
-
+    ndarray with dtype datetime64[ns]
     """
     cdef:
         Py_ssize_t i, n = arr.size

pandas/_libs/tslibs/resolution.pyx

@@ -110,8 +110,8 @@ def get_freq_group(freq) -> int:
     """
     Return frequency code group of given frequency str or offset.
 
-    Example
-    -------
+    Examples
+    --------
     >>> get_freq_group('W-MON')
     4000
 
@@ -193,8 +193,8 @@ class Resolution:
         """
         Return resolution str against resolution code.
 
-        Example
-        -------
+        Examples
+        --------
         >>> Resolution.get_str(Resolution.RESO_SEC)
         'second'
         """
@@ -205,8 +205,8 @@ class Resolution:
         """
         Return resolution str against resolution code.
 
-        Example
-        -------
+        Examples
+        --------
         >>> Resolution.get_reso('second')
         2
 
@@ -220,8 +220,8 @@ class Resolution:
         """
         Return frequency str against resolution str.
 
-        Example
-        -------
+        Examples
+        --------
         >>> f.Resolution.get_freq_group('day')
         4000
         """
@@ -232,8 +232,8 @@ class Resolution:
         """
         Return frequency str against resolution str.
 
-        Example
-        -------
+        Examples
+        --------
         >>> f.Resolution.get_freq('day')
         'D'
         """
@@ -244,8 +244,8 @@ class Resolution:
         """
         Return resolution str against frequency str.
 
-        Example
-        -------
+        Examples
+        --------
         >>> Resolution.get_str_from_freq('H')
         'hour'
         """
@@ -256,8 +256,8 @@ class Resolution:
         """
         Return resolution code against frequency str.
 
-        Example
-        -------
+        Examples
+        --------
         >>> Resolution.get_reso_from_freq('H')
         4
 
@@ -273,17 +273,17 @@ class Resolution:
 
         Parameters
         ----------
-        value : integer or float
-        freq : string
+        value : int or float
+        freq : str
             Frequency string
 
         Raises
         ------
         ValueError
             If the float cannot be converted to an integer at any resolution.
 
-        Example
-        -------
+        Examples
+        --------
         >>> Resolution.get_stride_from_decimal(1.5, 'T')
         (90, 'S')
 
@@ -298,8 +298,9 @@ class Resolution:
         else:
             start_reso = cls.get_reso_from_freq(freq)
             if start_reso == 0:
-                raise ValueError("Could not convert to integer offset "
-                                 "at any resolution")
+                raise ValueError(
+                    "Could not convert to integer offset at any resolution"
+                )
 
             next_value = cls._reso_mult_map[start_reso] * value
             next_name = cls._reso_str_bump_map[freq]