From c79e7ee3dffbad77f44c15effd53dd06826bd84c Mon Sep 17 00:00:00 2001
From: Krishna Chivukula <63070026+KrishnaSai2020@users.noreply.github.com>
Date: Sat, 31 Jul 2021 18:46:14 +0100
Subject: [PATCH 1/2] TST: fix read_stata doctest #42670 (#42701)

* doctest fix for #42670
* added read_stata docstring into the doctests

Co-authored-by: KrishnaSai2020 <krishnasai.chivukula@gmal.com>
---
 ci/code_checks.sh  |  1 +
 pandas/io/stata.py | 19 +++++++++++++++++--
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/ci/code_checks.sh b/ci/code_checks.sh
index d04d0eaee6ec4..46c03458e32c4 100755
--- a/ci/code_checks.sh
+++ b/ci/code_checks.sh
@@ -123,6 +123,7 @@ if [[ -z "$CHECK" || "$CHECK" == "doctests" ]]; then
       pandas/io/sql.py \
       pandas/io/formats/format.py \
       pandas/io/formats/style.py \
+      pandas/io/stata.py \
       pandas/tseries/
     RET=$(($RET + $?)) ; echo $MSG "DONE"
 
diff --git a/pandas/io/stata.py b/pandas/io/stata.py
index 705f5c82be915..1f87a017f31e4 100644
--- a/pandas/io/stata.py
+++ b/pandas/io/stata.py
@@ -160,15 +160,30 @@
 
 Examples
 --------
+
+Creating a dummy stata for this example
+>>> df = pd.DataFrame({{'animal': ['falcon', 'parrot', 'falcon',
+...                              'parrot'],
+...                   'speed': [350, 18, 361, 15]}})
+>>> df.to_stata('animals.dta')
+
 Read a Stata dta file:
 
->>> df = pd.read_stata('filename.dta')
+>>> df = pd.read_stata('animals.dta')
 
 Read a Stata dta file in 10,000 line chunks:
+>>> values = np.random.randint(0, 10, size=(20_000, 1), dtype="uint8")
+>>> df = pd.DataFrame(values, columns=["i"])
+>>> df.to_stata('filename.dta')
 
 >>> itr = pd.read_stata('filename.dta', chunksize=10000)
 >>> for chunk in itr:
-...     do_something(chunk)
+...    # Operate on a single chunk, e.g., chunk.mean()
+...    pass
+
+>>> import os
+>>> os.remove("./filename.dta")
+>>> os.remove("./animals.dta")
 """
 
 _read_method_doc = f"""\

From a5f8c9a0760d6ca40081e295c4c2e93aef144e9a Mon Sep 17 00:00:00 2001
From: Richard Shadrach <45562402+rhshadrach@users.noreply.github.com>
Date: Sat, 31 Jul 2021 16:54:59 -0400
Subject: [PATCH 2/2] TST: Catch warnings due to division by 0 (#42836)

---
 pandas/tests/test_expressions.py | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/pandas/tests/test_expressions.py b/pandas/tests/test_expressions.py
index 6ac85f9d36fdc..1348e62148cb1 100644
--- a/pandas/tests/test_expressions.py
+++ b/pandas/tests/test_expressions.py
@@ -1,5 +1,6 @@
 import operator
 import re
+import warnings
 
 import numpy as np
 import pytest
@@ -167,8 +168,12 @@ def testit():
 
             op = getattr(operator, opname)
 
-            result = expr.evaluate(op, left, left, use_numexpr=True)
-            expected = expr.evaluate(op, left, left, use_numexpr=False)
+            with warnings.catch_warnings():
+                # array has 0s
+                msg = "invalid value encountered in true_divide"
+                warnings.filterwarnings("ignore", msg, RuntimeWarning)
+                result = expr.evaluate(op, left, left, use_numexpr=True)
+                expected = expr.evaluate(op, left, left, use_numexpr=False)
             tm.assert_numpy_array_equal(result, expected)
 
             result = expr._can_use_numexpr(op, op_str, right, right, "evaluate")