From 953757a3e37ffb80570a20a8eca52dae35fc27bb Mon Sep 17 00:00:00 2001
From: Simon Hawkins <simonjayhawkins@gmail.com>
Date: Sat, 26 Oct 2019 10:40:44 +0100
Subject: [PATCH] CLN: remove simplejson (#29169)

---
 pandas/io/msgpack/__init__.py   | 2 +-
 pandas/io/msgpack/_packer.pyx   | 1 -
 pandas/io/msgpack/_unpacker.pyx | 3 +--
 pandas/util/_print_versions.py  | 6 +-----
 4 files changed, 3 insertions(+), 9 deletions(-)

diff --git a/pandas/io/msgpack/__init__.py b/pandas/io/msgpack/__init__.py
index 7107263c180cb..11407c8282660 100644
--- a/pandas/io/msgpack/__init__.py
+++ b/pandas/io/msgpack/__init__.py
@@ -48,7 +48,7 @@ def packb(o, **kwargs):
     return Packer(**kwargs).pack(o)
 
 
-# alias for compatibility to simplejson/marshal/pickle.
+# alias for compatibility to json/marshal/pickle.
 load = unpack
 loads = unpackb
 
diff --git a/pandas/io/msgpack/_packer.pyx b/pandas/io/msgpack/_packer.pyx
index 19307e2334f1e..aa71c5cc39667 100644
--- a/pandas/io/msgpack/_packer.pyx
+++ b/pandas/io/msgpack/_packer.pyx
@@ -60,7 +60,6 @@ cdef class Packer:
 
     :param callable default:
         Convert user type to builtin type that Packer supports.
-        See also simplejson's document.
     :param str encoding:
         Convert unicode to bytes with this encoding. (default: 'utf-8')
     :param str unicode_errors:
diff --git a/pandas/io/msgpack/_unpacker.pyx b/pandas/io/msgpack/_unpacker.pyx
index d7ebb194ef5c5..cf9b2c7c04d42 100644
--- a/pandas/io/msgpack/_unpacker.pyx
+++ b/pandas/io/msgpack/_unpacker.pyx
@@ -200,11 +200,10 @@ cdef class Unpacker:
     :param callable object_hook:
         When specified, it should be callable.
         Unpacker calls it with a dict argument after unpacking msgpack map.
-        (See also simplejson)
 
     :param callable object_pairs_hook:
         When specified, it should be callable. Unpacker calls it with a list
-        of key-value pairs after unpacking msgpack map. (See also simplejson)
+        of key-value pairs after unpacking msgpack map.
 
     :param str encoding:
         Encoding used for decoding msgpack raw.
diff --git a/pandas/util/_print_versions.py b/pandas/util/_print_versions.py
index 25795859d8018..289a32c51a916 100644
--- a/pandas/util/_print_versions.py
+++ b/pandas/util/_print_versions.py
@@ -1,4 +1,5 @@
 import codecs
+import json
 import locale
 import os
 import platform
@@ -105,11 +106,6 @@ def show_versions(as_json=False):
         deps_blob.append((modname, ver))
 
     if as_json:
-        try:
-            import json
-        except ImportError:
-            import simplejson as json
-
         j = dict(system=dict(sys_info), dependencies=dict(deps_blob))
 
         if as_json is True: