fix infer_freq raises section (#32642)

* fix infer_freq raises section * edits * another period
pandas-dev · Mar 12, 2020 · 25e2f86 · 25e2f86
1 parent 05925d2
commit 25e2f86
Showing 1 changed file with 8 additions and 3 deletions.
diff --git a/pandas/tseries/frequencies.py b/pandas/tseries/frequencies.py
@@ -249,9 +249,14 @@ def infer_freq(index, warn: bool = True) -> Optional[str]:
     Returns
     -------
     str or None
-        None if no discernible frequency
-        TypeError if the index is not datetime-like
-        ValueError if there are less than three values.
+        None if no discernible frequency.
+
+    Raises
+    ------
+    TypeError
+        If the index is not datetime-like.
+    ValueError
+        If there are fewer than three values.
     """
     import pandas as pd