exguard 0.2.1

描述

exgurd提供了一种装饰器，用于防止函数或方法抛出异常。这在执行不受信任的代码时非常有用，例如在框架中执行第三方模块时。

与Python 3中的suppress上下文管理器相比，exguard提供了更多控制异常处理的方法

• 根据模块和命名空间过滤，以定义要捕获哪些异常，并保持其他代码中的异常不受影响

• 捕获异常后执行回调函数

• 在finally块中执行回调函数

例如，一个在Web应用程序中调用第三方模块代码的API方法可以通过这种方式防止这些模块中的异常，同时框架本身的异常将原样抛出

from exguard import guard, traceback_str

def throw_to_client(exception, module):
    tb = traceback_str(exception)

    # Do something to pass a traceback to the browser, disable the plugin,…
    pass

# All third-party modules are under one namespace
@guard(modules=["myframework.plugins"], submodules=True, fullstack=True, cb_except=throw_to_client)
def call_plugin_api():
    # An exception inside this will be caught
    myframework.plugins.evil.crash()

    # This will still raise an exception like normal
    x = 17 / 0

作者

exguard是作为Veripeditus的一部分开始的，主要由Eike Tim Jesinghaus <eike@naturalnet.de>创建。

许可和版权

exguard - Guard code against exceptions, e.g. for running untrusted module code in a framework
Copyright (C) 2017  Eike Tim Jesinghaus <eike@naturalnet.de>

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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