From dbcee29d7471707ff23c9a1df43e3532126fca49 Mon Sep 17 00:00:00 2001
From: Gregory Rome <gwrome@gmail.com>
Date: Tue, 30 Apr 2019 18:48:36 -0500
Subject: [PATCH 1/2] Fix type annotation in pandas.compat

---
 mypy.ini                  | 3 ---
 pandas/compat/__init__.py | 6 ++----
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/mypy.ini b/mypy.ini
index 596d71c77317e..63ccb6eb994ba 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -5,9 +5,6 @@ follow_imports=silent
 [mypy-pandas.conftest,pandas.tests.*]
 ignore_errors=True
 
-[mypy-pandas.compat]
-ignore_errors=True
-
 [mypy-pandas.core.api]
 ignore_errors=True
 
diff --git a/pandas/compat/__init__.py b/pandas/compat/__init__.py
index 5c256a53b5036..51e5741485977 100644
--- a/pandas/compat/__init__.py
+++ b/pandas/compat/__init__.py
@@ -74,11 +74,9 @@ def raise_with_traceback(exc, traceback=Ellipsis):
     raise exc.with_traceback(traceback)
 
 
-# In Python 3.7, the private re._pattern_type is removed.
-# Python 3.5+ have typing.re.Pattern
 if PY36:
-    import typing
-    re_type = typing.re.Pattern
+    from typing import Pattern, Type
+    re_type = Pattern  # type: Type[Pattern]
 else:
     re_type = type(re.compile(''))
 

From f1ec34c32ced3885dff923cfb36207b3661b949b Mon Sep 17 00:00:00 2001
From: Gregory Rome <gwrome@gmail.com>
Date: Wed, 1 May 2019 16:07:22 -0500
Subject: [PATCH 2/2] Remove PY36 condition for regex type

---
 pandas/compat/__init__.py | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/pandas/compat/__init__.py b/pandas/compat/__init__.py
index 51e5741485977..32b3d318dd57c 100644
--- a/pandas/compat/__init__.py
+++ b/pandas/compat/__init__.py
@@ -11,9 +11,9 @@
 * platform checker
 """
 import platform
-import re
 import struct
 import sys
+from typing import Pattern
 
 PY36 = sys.version_info >= (3, 6)
 PY37 = sys.version_info >= (3, 7)
@@ -74,11 +74,7 @@ def raise_with_traceback(exc, traceback=Ellipsis):
     raise exc.with_traceback(traceback)
 
 
-if PY36:
-    from typing import Pattern, Type
-    re_type = Pattern  # type: Type[Pattern]
-else:
-    re_type = type(re.compile(''))
+re_type = Pattern
 
 
 # https://github.com/pandas-dev/pandas/pull/9123