python - sys.excepthook = handle_exception 不是 invoket 或 trigeret

Question

我有这个简单的烧瓶应用程序：

def handle_exception(exc_type, exc_value, exc_traceback):
    print("Hello")

dd = "test"
sys.excepthook = handle_exception
logger.info("a %s- b: %s" % dd)
# the logger above will raise exception 


if __name__ == '__main__':
    # Start the app
    app.run(host='0.0.0.0', threaded=True)

handle_exception 从未调用，但在 stdout/err 我得到：

Traceback (most recent call last):
  File "C:\Program Files\JetBrains\PyCharm Community Edition 2019.3.2\plugins\python-ce\helpers\pydev\pydevd.py", line 1434, in _exec
    pydev_imports.execfile(file, globals, locals)  # execute the script
  File "C:\Program Files\JetBrains\PyCharm Community Edition 2019.3.2\plugins\python-ce\helpers\pydev\_pydev_imps\_pydev_execfile.py", line 18, in execfile
    exec(compile(contents+"\n", file, 'exec'), glob, loc)
  File "C:/git/app/app.py", line 132, in <module>
    logger.info("a %s- b: %s" % dd)
TypeError: not enough arguments for format string

如何让它调用handle_exception？我喜欢处理所有未被捕获的异常אם

标签： pythonflaskexception