I've created a standalone exe Windows service written in Python and built with pyInstaller. When I try to import wmi, an exception is thrown.
What's really baffling is that I can do it without a problem if running the code in a foreground exe, or a foreground python script, or a python script running as a background service via pythonservice.exe!
Why does it fail under this special circumstance of running as a service exe?
import wmi
Produces this error for me:
com_error: (-2147221020, 'Invalid syntax', None, None)
Here's the traceback:
Traceback (most recent call last):
File "<string>", line 43, in onRequest
File "C:\XXX\XXX\XXX.pyz", line 98, in XXX
File "C:\XXX\XXX\XXX.pyz", line 31, in XXX
File "C:\XXX\XXX\XXX.pyz", line 24, in XXX
File "C:\XXX\XXX\XXX.pyz", line 34, in XXX
File "C:\Program Files (x86)\PyInstaller-2.1\PyInstaller\loader\pyi_importers.py", line 270, in load_module
File "C:\XXX\XXX\out00-PYZ.pyz\wmi", line 157, in <module>
File "C:\XXX\XXX\out00-PYZ.pyz\win32com.client", line 72, in GetObject
File "C:\XXX\XXX\out00-PYZ.pyz\win32com.client", line 87, in Moniker
wmi.py line 157 has a global call to GetObject:
obj = GetObject ("winmgmts:")
win32com\client__init.py__ contains GetObject(), which ends up calling Moniker():
def GetObject(Pathname = None, Class = None, clsctx = None):
"""
Mimic VB's GetObject() function.
ob = GetObject(Class = "ProgID") or GetObject(Class = clsid) will
connect to an already running instance of the COM object.
ob = GetObject(r"c:\blah\blah\foo.xls") (aka the COM moniker syntax)
will return a ready to use Python wrapping of the required COM object.
Note: You must specifiy one or the other of these arguments. I know
this isn't pretty, but it is what VB does. Blech. If you don't
I'll throw ValueError at you. :)
This will most likely throw pythoncom.com_error if anything fails.
"""
if clsctx is None:
clsctx = pythoncom.CLSCTX_ALL
if (Pathname is None and Class is None) or \
(Pathname is not None and Class is not None):
raise ValueError("You must specify a value for Pathname or Class, but not both.")
if Class is not None:
return GetActiveObject(Class, clsctx)
else:
return Moniker(Pathname, clsctx)
The first line in Moniker(), i.e. MkParseDisplayName() is where the exception is encountered:
def Moniker(Pathname, clsctx = pythoncom.CLSCTX_ALL):
"""
Python friendly version of GetObject's moniker functionality.
"""
moniker, i, bindCtx = pythoncom.MkParseDisplayName(Pathname)
dispatch = moniker.BindToObject(bindCtx, None, pythoncom.IID_IDispatch)
return __WrapDispatch(dispatch, Pathname, clsctx=clsctx)
Note: I tried using
pythoncom.CoInitialize()
which apparently solves this import problem within a thread, but that didn't work...
I also face the same issue and I figure out this issue finally,
import pythoncom and CoInitialize pythoncom.CoInitialize (). They import wmi
import pythoncom
pythoncom.CoInitialize ()
import wmi
I tried solving this countless ways. In the end, I threw in the towel and had to just find a different means of achieving the same goals I had with wmi.
Apparently that invalid syntax error is thrown when trying to create an object with an invalid "moniker name", which can simply mean the service, application, etc. doesn't exist on the system. Under this circumstance "winmgmts" just can't be found at all it seems! And yes, I tried numerous variations on that moniker with additional specs, and I tried running the service under a different user account, etc.
Honestly I didn't dig in order to understand why this occurs.
Anyway, the below imports solved my problem - which was occurring only when ran from a Flask instance:
import os
import pythoncom
pythoncom.CoInitialize()
from win32com.client import GetObject
import wmi
The error "com_error: (-2147221020, 'Invalid syntax', None, None)" is exactly what popped up in my case so I came here after a long time of searching the web and voila:
Under this circumstance "winmgmts" just can't be found at all it
seems!
This was the correct hint for because i had just a typo , used "winmgmt:" without trailing 's'. So invalid sythax refers to the first methods parameter, not the python code itself. o_0 Unfortunately I can't find any reference which objects we can get with win32com.client.GetObject()... So if anybody has a hint to which params are "allowed" / should work, please port it here. :-)
kind regards
ChrisPHL
Related
i'm a newbie in python and coding,i'm trying to use pyzabbix to add trigger dependecies,but some error occusrs.
When i run
zapi.trigger.addDependencies(triggerid, dependsOnTriggerid)
an error occurs
pyzabbix.ZabbixAPIException: ('Error -32500: Application error., No permissions to referred object or it does not exist!', -32500)
i get the "triggerid" and "dependsOnTriggerid" by trigger.get:
triggerid_info = zapi.trigger.get(filter={'host': 'xx','description': 'xx'},output=['triggerid'], selectDependencies=['description'])
triggerid = triggerid_info[0]['triggerid']
dependsOnTriggerid = trigger_info[0]['dependencies'][0]['triggerid']
The results are as follws:
Traceback (most recent call last): File "E:/10.python/2019-03-07/1.py", line 14, in zapi.trigger.addDependencies(triggerid, dependsOnTriggerid) File "D:\Program Files\Python37\lib\site-packages\pyzabbix__init__.py", line 166, in fn args or kwargs File "D:\Program Files\Python37\lib\site-packages\pyzabbix__init__.py", line 143, in do_request raise ZabbixAPIException(msg, response_json['error']['code']) pyzabbix.ZabbixAPIException: ('Error -32500: Application error., No permissions to referred object or it does not exist!', -32500)
Did i get the wrong triggerid? or the i use the method in a wrong way? Thanks so much
To add a dependancy means that you need to link two different triggers (from the same host or from another one) with a master-dependent logic.
You are trying to add the dependancy triggerid -> dependsOnTriggerid, which is obtained from a supposed existing dependancy (trigger_info[0]['dependencies'][0]['triggerid']), and this makes little sense and I suppose it's the cause of the error.
You need to get both trigger's triggerid and then add the dependancy:
masterTriggerObj = zapi.trigger.get( /* filter to get your master trigger here */ )
dependentTriggerObj = zapi.trigger.get( /* filter to get your dependent trigger here */)
result = zapi.trigger.adddependencies(triggerid=dependentTriggerObj[0]['triggerid'], dependsOnTriggerid=masterTriggerObj[0]['triggerid'])
The method "trigger.addDependencies" need only one parameter，and it should be a dict or some other object/array.The following code solves the problem.
trigger_info = zapi.trigger.get(filter={xx},output=['triggerid'])
trigger_depends_info_193 = zapi.trigger.get(filter={xx},output=['triggerid'])
trigger_dependson_193 = {"triggerid": trigger_info[0]['triggerid'], "dependsOnTriggerid": trigger_depends_info_193[0]['triggerid']}
zapi.trigger.adddependencies(trigger_dependson_193)
I'm sure that the answer for this is out there, but I've read the site info, I've watched the video they made and I've tried to find a really basic tutorial but I can't. I've been messing about with this for most of the day and It's not really making sense to me.
Here's my error:
vco#geoHP:~$ python3 a_blah.py "don't scare the cats" magic
Traceback (most recent call last):
File "a_blah.py", line 20, in <module>
arguments = docopt.docopt(__doc__)
File "/usr/lib/python3/dist-packages/docopt.py", line 579, in docopt
raise DocoptExit()
docopt.DocoptExit: Usage:
a_blah.py <start>... <end>
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "a_blah.py", line 33, in <module>
except DocoptExit:
NameError: name 'DocoptExit' is not defined
line 20 - I don't see why that line is creating an error, it worked before and I've seen that exact line in others programmes?
I don't know why the line 570 of docopt is creating an error - I've seen others use DocoptExit(), isn't this something that's just part of Docopt? Do I have to write my own exit function for this? (I've not seen anyone else do that)
here's the code
import docopt
if __name__ == '__main__':
try:
arguments = docopt.docopt(__doc__)
print(arguments['<start>'])
print("that was that")
print(arguments['<end>'])
except docopt.DocoptExit:
print("this hasn't worked")
What I'm trying to make this for is a script that I've written that moves files from one place to another based on their extension.
So the arguments at the command line will be file type, start directory, destination directory, and an option to delete them from the start directory after they've been moved.
I'm trying (and failing) to get docopt working on it's own prior to including it in the other script though.
The exception you want is in docopt's namespace. You never import it into your global namespace, so you can't refer to it simply with it's name. You need to import it separately or refer to it through the module. You also shouldn't use parenthesis after the exception.
import docopt
try:
# stuff
except docopt.DocoptExit:
# other stuff
or
import docopt
from docopt import DocoptExit
try:
# stuff
except DocoptExit:
# other stuff
I'm working with a pice of software written in python from US CERT to do some fuzzing. Included in the software is a minimizer.py tool which is designed to be ran against certain test cases that cause crashes in order to determine exactly which byte mutations are causing the crash.
However when attempting to run the tool it's spitting an error at me. Google searches for both the tool and the error are drawing a blank. Attempting to troubleshoot it myself with limited python experience is not helping either. Any ideas on whats causing the error so I can fix it and get the tool working?
command line options being used are: minimizer.py --stringmode
The error output is as follows:
Traceback (most recent call last):
File "C:\FOE2\tools\minimize.py", line 234, in <module>
main()
File "C:\FOE2\tools\minimize.py", line 183, in main
config = Config(cfg_file).config
File "C:\FOE2\certfuzz\campaign\config\__init__.py", line 76, in __init__
self._set_derived_options()
File "C:\FOE2\certfuzz\campaign\config\foe_config.py", line 93, in _set_derived_options
t = Template(self.config['target']['cmdline_template'])
TypeError: 'NoneType' object has no attribute '__getitem__'
Segments of code from both of the files in last two lines of error are:
__init__.py:
def __init__(self, config_file):
self.file = config_file
self.config = None
self.load()
self._set_derived_options()
self.validations = []
self._add_validations()
self.validate()
def _set_derived_options(self):
pass
And then from foe_config_.py (added the preceding lines of code just in case they are relevant.):
class Config(ConfigBase):
def _add_validations(self):
self.validations.append(self._validate_debugger_timeout_exceeds_runner)
def _set_derived_options(self):
# interpolate program name
# add quotes around $SEEDFILE
t = Template(self.config['target']['cmdline_template'])
#self.config['target']['cmdline_template'] = t.safe_substitute(PROGRAM=self.config['target']['program'])
self.config['target']['cmdline_template'] = t.safe_substitute(PROGRAM=quoted(self.config['target']['program']), SEEDFILE=quoted('$SEEDFILE'))
It's hard to tell from the code you posted, but it looks like __init__ sets self.config to None. Then it calls _set_derived_options which uses self.config here:
t = Template(self.config['target']['cmdline_template'])
But self.config hasn't changed from being None. You wouldn't expect None['target'] to give you anything (other than an Exception), but I think that is essentially what you're doing here.
I'm running into a few problems with adding gae-sessions to a relatively mature GAE app. I followed the readme carefully and also looked at the demo.
First, just adding the gaesesions directory to my app causes the following error when running tests with nose and nose-gae:
Exception ImportError: 'No module named threading' in <bound method local.__del__ of <_threading_local.local object at 0x103e10628>> ignored
All the tests run fine so not a big problem but suggests that something isn't right.
Next, if I add the following two lines of code:
from gaesessions import get_current_session
session = get_current_session()
And run my tests, then I get the following error:
Traceback (most recent call last):
File "/Users/.../unit_tests.py", line 1421, in testParseFBRequest
data = tasks.parse_fb_request(sr)
File "/Users/.../tasks.py", line 220, in parse_fb_request
session = get_current_session()
File "/Users/.../gaesessions/__init__.py", line 36, in get_current_session
return _tls.current_session
File "/Library/.../python2.7/_threading_local.py", line 193, in __getattribute__
return object.__getattribute__(self, name)
AttributeError: 'local' object has no attribute 'current_session'
This error does not happen on the dev server.
Any suggestions on fixing the above would be greatly appreciated.
I ran into the same problem. The problem seems to be that the gae testbed behaves differently than the development server. I don't know the specifics but ended up solving it by adding
def setUp(self):
testbed.Testbed().activate()
# after activating the testbed:
from gaesessions import Session, set_current_session
set_current_session(Session())
Trying to use stackless python (2.7.2) with SPickle to send a test method over celery for execution on a different machine. I would like the test method (code) to be included with the pickle and not forced to exist on the executing machines python path.
Been referencing following presentation:
https://ep2012.europython.eu/conference/talks/advanced-pickling-with-stackless-python-and-spickle
Trying to use the technique shown in the checkpointing slide 11. The RPC example doesn't seem right given that we are using celery:
Client code:
from stackless import run, schedule, tasklet
from sPickle import SPickleTools
def test_method():
print "hello from test method"
tasks = []
test_tasklet = tasklet(test_method)()
tasks.append(test_tasklet)
pt = SPickleTools(serializeableModules=['__test_method__'])
pickled_task = pt.dumps(tasks)
Server code:
pt = sPickle.SPickleTools()
unpickledTasks = pt.loads(pickled_task)
Results in:
[2012-03-09 14:24:59,104: ERROR/MainProcess] Task
celery_tasks.test_exec_method[8f462bd6-7952-4aa1-9adc-d84ee4a51ea6] raised exception:
AttributeError("'module'
object has no attribute 'test_method'",)
Traceback (most recent call last):
File "c:\Python27\lib\site-packages\celery\execute\trace.py", line 153, in trace_task
R = retval = task(*args, **kwargs)
File "c:\Python27\celery_tasks.py", line 16, in test_exec_method
unpickledTasks = pt.loads(pickled_task)
File "c:\Python27\lib\site-packages\sPickle\_sPickle.py", line 946, in loads
return unpickler.load()
AttributeError: 'module' object has no attribute 'test_method'
Any suggestions on what I am doing incorrect or if this is even possible?
Alternative suggestions for doing dynamic module loading in a celeryd would also be good (as an alternative for using sPickle). I have experimented with doing:
py_mod = imp.load_source(module_name,'some script path')
sys.modules.setdefault(module_name,py_mod)
but the dynamically loaded module does not seem to persist through different calls to celeryd, i.e. different remote calls.
You must define test_method within its own module. Currently sPickle detects whether test_method is defined in a module that can be imported. An alternative way is to set the __module__ attribute of the function to None.
def test_method():
pass
test_method.__module__ = None