DOC: Fix docstrings lack of punctuation

pandas/core/arrays/base.py

@@ -514,7 +514,7 @@ def fillna(self, value=None, method=None, limit=None):
 
     def dropna(self):
         """
-        Return ExtensionArray without NA values
+        Return ExtensionArray without NA values.
 
         Returns
         -------
@@ -957,7 +957,7 @@ def _concat_same_type(
         cls, to_concat: Sequence[ABCExtensionArray]
     ) -> ABCExtensionArray:
         """
-        Concatenate multiple array
+        Concatenate multiple array.
 
         Parameters
         ----------

pandas/core/arrays/datetimes.py

@@ -1158,7 +1158,7 @@ def tz_localize(self, tz, ambiguous="raise", nonexistent="raise", errors=None):
     def to_pydatetime(self):
         """
         Return Datetime Array/Index as object ndarray of datetime.datetime
-        objects
+        objects.
 
         Returns
         -------
@@ -1283,7 +1283,7 @@ def to_perioddelta(self, freq):
         """
         Calculate TimedeltaArray of difference between index
         values and index converted to PeriodArray at specified
-        freq. Used for vectorized offsets
+        freq. Used for vectorized offsets.
 
         Parameters
         ----------

pandas/core/arrays/period.py

@@ -426,7 +426,7 @@ def __array__(self, dtype=None):
     @property
     def is_leap_year(self):
         """
-        Logical indicating if the date belongs to a leap year
+        Logical indicating if the date belongs to a leap year.
         """
         return isleapyear_arr(np.asarray(self.year))
 

pandas/core/indexes/datetimes.py

@@ -661,7 +661,7 @@ def _get_time_micros(self):
     def to_series(self, keep_tz=None, index=None, name=None):
         """
         Create a Series with both index and values equal to the index keys
-        useful with map for returning an indexer based on an index
+        useful with map for returning an indexer based on an index.
 
         Parameters
         ----------
@@ -687,10 +687,10 @@ def to_series(self, keep_tz=None, index=None, name=None):
                 behaviour and silence the warning.
 
         index : Index, optional
-            index of resulting Series. If None, defaults to original index
-        name : string, optional
-            name of resulting Series. If None, defaults to name of original
-            index
+            Index of resulting Series. If None, defaults to original index.
+        name : str, optional
+            Name of resulting Series. If None, defaults to name of original
+            index.
 
         Returns
         -------
@@ -735,7 +735,7 @@ def to_series(self, keep_tz=None, index=None, name=None):
 
     def snap(self, freq="S"):
         """
-        Snap time stamps to nearest occurring frequency
+        Snap time stamps to nearest occurring frequency.
 
         Returns
         -------

pandas/core/indexes/multi.py

@@ -1250,7 +1250,7 @@ def _set_names(self, names, level=None, validate=True):
             self.levels[l].rename(name, inplace=True)
 
     names = property(
-        fset=_set_names, fget=_get_names, doc="""\nNames of levels in MultiIndex\n"""
+        fset=_set_names, fget=_get_names, doc="""\nNames of levels in MultiIndex.\n"""
     )
 
     @Appender(_index_shared_docs["_get_grouper_for_level"])
@@ -1762,7 +1762,7 @@ def is_all_dates(self):
 
     def is_lexsorted(self):
         """
-        Return True if the codes are lexicographically sorted
+        Return True if the codes are lexicographically sorted.
 
         Returns
         -------
@@ -2246,7 +2246,7 @@ def swaplevel(self, i=-2, j=-1):
 
     def reorder_levels(self, order):
         """
-        Rearrange levels using input order. May not drop or duplicate levels
+        Rearrange levels using input order. May not drop or duplicate levels.
 
         Parameters
         ----------

pandas/core/indexes/timedeltas.py

@@ -68,20 +68,20 @@ class TimedeltaIndex(
 ):
     """
     Immutable ndarray of timedelta64 data, represented internally as int64, and
-    which can be boxed to timedelta objects
+    which can be boxed to timedelta objects.
 
     Parameters
     ----------
     data  : array-like (1-dimensional), optional
-        Optional timedelta-like data to construct index with
+        Optional timedelta-like data to construct index with.
     unit : unit of the arg (D,h,m,s,ms,us,ns) denote the unit, optional
-        which is an integer/float number
-    freq : string or pandas offset object, optional
+        Which is an integer/float number.
+    freq : str or pandas offset object, optional
         One of pandas date offset strings or corresponding objects. The string
         'infer' can be passed in order to set the frequency of the index as the
-        inferred frequency upon creation
+        inferred frequency upon creation.
     copy  : bool
-        Make a copy of input ndarray
+        Make a copy of input ndarray.
     start : starting value, timedelta-like, optional
         If data is None, start is used as the start point in generating regular
         timedelta data.
@@ -90,24 +90,24 @@ class TimedeltaIndex(
 
     periods  : int, optional, > 0
         Number of periods to generate, if generating index. Takes precedence
-        over end argument
+        over end argument.
 
         .. deprecated:: 0.24.0
 
     end : end time, timedelta-like, optional
         If periods is none, generated index will extend to first conforming
-        time on or just past end argument
+        time on or just past end argument.
 
         .. deprecated:: 0.24. 0
 
-    closed : string or None, default None
+    closed : str or None, default None
         Make the interval closed with respect to the given frequency to
-        the 'left', 'right', or both sides (None)
+        the 'left', 'right', or both sides (None).
 
         .. deprecated:: 0.24. 0
 
     name : object
-        Name to be stored in the index
+        Name to be stored in the index.
 
     Attributes
     ----------

pandas/core/indexing.py

@@ -49,7 +49,7 @@ def get_indexers_list():
 # the public IndexSlicerMaker
 class _IndexSlice:
     """
-    Create an object to more easily perform multi-index slicing
+    Create an object to more easily perform multi-index slicing.
 
     See Also
     --------