CLN: remove simplejson (#29169)

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
 

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:

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.

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: