1 files changed, 19 insertions, 13 deletions
diff --git a/Lib/platform.py b/Lib/platform.py
index 7bb222088d5..75aa5551085 100755
--- a/Lib/platform.py
+++ b/Lib/platform.py
@@ -118,6 +118,10 @@ import re
 import sys
 import functools
 import itertools
+try:
+    import _wmi
+except ImportError:
+    _wmi = None
 
 ### Globals & Constants
 
@@ -312,24 +316,26 @@ def _syscmd_ver(system='', release='', version='',
         version = _norm_version(version)
     return system, release, version
 
-try:
-    import _wmi
-except ImportError:
-    def _wmi_query(*keys):
+
+def _wmi_query(table, *keys):
+    global _wmi
+    if not _wmi:
         raise OSError("not supported")
-else:
-    def _wmi_query(table, *keys):
-        table = {
-            "OS": "Win32_OperatingSystem",
-            "CPU": "Win32_Processor",
-        }[table]
+    table = {
+        "OS": "Win32_OperatingSystem",
+        "CPU": "Win32_Processor",
+    }[table]
+    try:
         data = _wmi.exec_query("SELECT {} FROM {}".format(
             ",".join(keys),
             table,
         )).split("\0")
-        split_data = (i.partition("=") for i in data)
-        dict_data = {i[0]: i[2] for i in split_data}
-        return (dict_data[k] for k in keys)
+    except OSError:
+        _wmi = None
+        raise OSError("not supported")
+    split_data = (i.partition("=") for i in data)
+    dict_data = {i[0]: i[2] for i in split_data}
+    return (dict_data[k] for k in keys)
 
 
 _WIN32_CLIENT_RELEASES = [