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PONTEventLogHandler from a Python executable
 

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    <pre><code>import logging, logging.handlers def main(): ntl = logging.handlers.NTEventLogHandler("Python Logging Test") logger = logging.getLogger("") logger.setLevel(logging.DEBUG) logger.addHandler(ntl) logger.error("This is a '%s' message", "Error") if __name__ == "__main__": main() </code></pre> <p>The Python (2.7.x) script above writes "This is a 'Error' message" to the Windows Event Viewer. When I run it as a script, I get the expected output. If I convert the script to an executable via PyInstaller, I get an entry in the event log but it says something completely different. </p> <blockquote> <p>The description for Event ID ( 1 ) in Source ( Python Logging Test ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. You may be able to use the /AUXSOURCE= flag to retrieve this description; see Help and Support for details. The following information is part of the event: This is a 'Error' message.</p> </blockquote> <p>This is the command I use to convert the script into an executable: <code>pyinstaller.py --onefile --noconsole my_script.py</code> though the command line parameters do not appear to have any impact on this behaviour and it will suffice to just call <code>pyinstaller.py my_script.py</code>.</p> <p>I would appreciate any help in understanding what is going on and how I go about fixing this.</p> <p><strong>Final solution</strong></p> <p>I didn't want to go down the resource hacker route, as that is going to be a difficult step to automate. Instead, the approach I took was to grab the <code>win32service.pyd</code> file from c:\Python27\Lib\site-packages\win32 and place it next to my executable. The script was then modified pass the full path to the copy of the <code>win32service.pyd</code> file and this works in both script and exe form. The final script is included below:</p> <pre><code>import logging, logging.handlers import os import sys def main(): base_dir = os.path.dirname(sys.argv[0]) dllname = os.path.join(base_dir, "win32service.pyd") ntl = logging.handlers.NTEventLogHandler("Python Logging Test", dllname=dllname) logger = logging.getLogger("") logger.setLevel(logging.DEBUG) logger.addHandler(ntl) logger.error("This is a '%s' message", "Error") if __name__ == "__main__": main() </code></pre>
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