From a4513ced90da7279db1e9d1d283f9d065972f8b5 Mon Sep 17 00:00:00 2001
From: MomIsBestFriend <>
Date: Fri, 14 Feb 2020 17:52:21 +0200
Subject: [PATCH 1/2] Avoid importing from pandas at _libs files

---
 pandas/_libs/missing.pyx | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/pandas/_libs/missing.pyx b/pandas/_libs/missing.pyx
index 4d17a6f883c1c..1cdba452c6fd2 100644
--- a/pandas/_libs/missing.pyx
+++ b/pandas/_libs/missing.pyx
@@ -1,6 +1,7 @@
 import cython
 from cython import Py_ssize_t
 
+import platform
 import numbers
 
 import numpy as np
@@ -16,17 +17,12 @@ from pandas._libs.tslibs.nattype cimport (
     checknull_with_nat, c_NaT as NaT, is_null_datetimelike)
 from pandas._libs.ops_dispatch import maybe_dispatch_ufunc_to_dunder_op
 
-from pandas.compat import is_platform_32bit
-
-
 cdef:
     float64_t INF = <float64_t>np.inf
     float64_t NEGINF = -INF
 
     int64_t NPY_NAT = util.get_nat()
 
-    bint is_32bit = is_platform_32bit()
-
 
 cpdef bint checknull(object val):
     """
@@ -361,7 +357,7 @@ class NAType(C_NAType):
 
     def __hash__(self):
         # GH 30013: Ensure hash is large enough to avoid hash collisions with integers
-        exponent = 31 if is_32bit else 61
+        exponent = 31 if platform.architecture()[0] == "32-bit" else 61
         return 2 ** exponent - 1
 
     # Binary arithmetic and comparison ops -> propagate

From 5c376540a404e8d3e2ab51bc87855cb4e8b943e4 Mon Sep 17 00:00:00 2001
From: MomIsBestFriend <>
Date: Sat, 15 Feb 2020 10:26:16 +0200
Subject: [PATCH 2/2] Moved the computation to the top

---
 pandas/_libs/missing.pyx | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pandas/_libs/missing.pyx b/pandas/_libs/missing.pyx
index 1cdba452c6fd2..ba8a5dd3dd1d7 100644
--- a/pandas/_libs/missing.pyx
+++ b/pandas/_libs/missing.pyx
@@ -23,6 +23,8 @@ cdef:
 
     int64_t NPY_NAT = util.get_nat()
 
+    bint is_32bit =  platform.architecture()[0] == "32-bit"
+
 
 cpdef bint checknull(object val):
     """
@@ -357,7 +359,7 @@ class NAType(C_NAType):
 
     def __hash__(self):
         # GH 30013: Ensure hash is large enough to avoid hash collisions with integers
-        exponent = 31 if platform.architecture()[0] == "32-bit" else 61
+        exponent = 31 if is_32bit else 61
         return 2 ** exponent - 1
 
     # Binary arithmetic and comparison ops -> propagate