wmi_iterate_query.py

#!python3
"""`wmi.py`'s querying is very slow when fetching many items (ex. Win32_NTLogEvent). There are 2 solutions:

  1. Use 'wmi._wmi_namespace._raw_query'.
  2. Hack 'wmi._wmi_namespace.query'.
"""
import wmi

# Use 'wmi._wmi_namespace._raw_query'.
c = wmi.WMI(privileges=['Security'])
for obj in c._raw_query('SELECT * FROM Win32_NTLogEvent'):
    print(wmi._wmi_object(obj, c.Win32_NTLogEvent))
    break


# Hack 'wmi._wmi_namespace.query'.
def iquery(self, wql, instance_of=None, fields=[]):
    for obj in self._raw_query(wql):
        yield wmi._wmi_object(obj, instance_of, fields)
iquery.__doc__ = wmi._wmi_namespace.query.__doc__
wmi._wmi_namespace.query = iquery

c = wmi.WMI(privileges=['Security'])
for obj in c.Win32_NTLogEvent():
    print(obj)
    break