From 284092f21f23b9a4a2810a892d40465d392874d0 Mon Sep 17 00:00:00 2001
From: Vladimir Podolskiy <v.e.podolskiy@gmail.com>
Date: Tue, 2 Feb 2021 15:47:09 +0100
Subject: [PATCH 1/3] Added an example for infer_freq

Added an example for infer_freq function. The initial index is built using a fixed number of periods to avoid encoding frequency in this index explicitly.
---
 pandas/tseries/frequencies.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/pandas/tseries/frequencies.py b/pandas/tseries/frequencies.py
index c5b875b8f027e..13de6047d0d9d 100644
--- a/pandas/tseries/frequencies.py
+++ b/pandas/tseries/frequencies.py
@@ -145,6 +145,13 @@ def infer_freq(index, warn: bool = True) -> Optional[str]:
         If the index is not datetime-like.
     ValueError
         If there are fewer than three values.
+        
+    Examples
+    --------
+    >>> idx = pd.date_range(start = '2020/12/01', end = '2020/12/30', periods = 30)
+    >>> pd.infer_freq(idx)
+    'D'
+            
     """
     import pandas as pd
 

From 8725a486a38b8f20d91bdfb85577beaba28d86fb Mon Sep 17 00:00:00 2001
From: Vladimir Podolskiy <v.e.podolskiy@gmail.com>
Date: Tue, 2 Feb 2021 17:24:45 +0100
Subject: [PATCH 2/3] Update frequencies.py

Removed empty line and deleted spaces.
---
 pandas/tseries/frequencies.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/pandas/tseries/frequencies.py b/pandas/tseries/frequencies.py
index 13de6047d0d9d..0a49c5e555f11 100644
--- a/pandas/tseries/frequencies.py
+++ b/pandas/tseries/frequencies.py
@@ -145,13 +145,12 @@ def infer_freq(index, warn: bool = True) -> Optional[str]:
         If the index is not datetime-like.
     ValueError
         If there are fewer than three values.
-        
+
     Examples
     --------
     >>> idx = pd.date_range(start = '2020/12/01', end = '2020/12/30', periods = 30)
     >>> pd.infer_freq(idx)
     'D'
-            
     """
     import pandas as pd
 

From 5e6d4173a4768dc46260bc4cea64a6146f00cfa3 Mon Sep 17 00:00:00 2001
From: Vladimir Podolskiy <v.e.podolskiy@gmail.com>
Date: Mon, 29 Mar 2021 16:36:46 +0200
Subject: [PATCH 3/3] Deleted spaces from parameters list in example

---
 pandas/tseries/frequencies.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pandas/tseries/frequencies.py b/pandas/tseries/frequencies.py
index 0a49c5e555f11..ea60bc7f91a36 100644
--- a/pandas/tseries/frequencies.py
+++ b/pandas/tseries/frequencies.py
@@ -148,7 +148,7 @@ def infer_freq(index, warn: bool = True) -> Optional[str]:
 
     Examples
     --------
-    >>> idx = pd.date_range(start = '2020/12/01', end = '2020/12/30', periods = 30)
+    >>> idx = pd.date_range(start='2020/12/01', end='2020/12/30', periods=30)
     >>> pd.infer_freq(idx)
     'D'
     """