如何捕获“未捕获异常”？

Question

我正在开发一个Facebook应用，使用的是python-sdk。有时候我会遇到一个叫“未捕获的异常”的错误，长得像这样：

Uncaught exception GET…
…
…
GraphAPIError: Error validating access token.

我知道这个异常出现的原因，也知道怎么解决它（更新oauth令牌）。

但是我该怎么捕捉到这个异常呢？

传统的try: .. except:方法并不能解决这个问题。

我希望能找到一个解决方案，而不是去修改SDK的代码。

完整的错误输出，正如评论中所要求的：

[E 110407 20:44:20 web:900] Uncaught exception GET /fl?access_token=122385271170470|2.teD_D9DV6gegmpgkbZI_Hg__.3600.1302206400-1592301191|GuXEs4YTqsCPDNFU4fhbWuwlvOQ (127.0.0.1)
    HTTPRequest(protocol='http', host='XX.XX.100.66', method='GET', uri='/fl?access_token=122385271170470|2.teD_D9DV6gegmpgkbZI_Hg__.3600.1302206400-1592301191|GuXEs4YTqsCPDNFU4fhbWuwlvOQ', version='HTTP/1.0', remote_ip='127.0.0.1', body='', headers={'Accept-Language': 'en-us,en;q=0.5', 'Accept-Encoding': 'gzip,deflate', 'X-Forwarded-For': '109.253.54.46', 'Host': 'XX.XX.100.66', 'Accept': 'application/json, text/javascript, */*', 'User-Agent': 'Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.16) Gecko/20110323 Ubuntu/10.10 (maverick) Firefox/3.6.16', 'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.7', 'Connection': 'close', 'X-Requested-With': 'XMLHttpRequest', 'X-Real-Ip': 'XX.XX.54.46', 'Referer': 'http://XX.XX.100.66/'})
    Traceback (most recent call last):
      File "/usr/local/lib/python2.6/dist-packages/tornado-1.2-py2.6.egg/tornado/web.py", line 861, in _execute
        getattr(self, self.request.method.lower())(*args, **kwargs)
      File "/usr/local/lib/python2.6/dist-packages/tornado-1.2-py2.6.egg/tornado/web.py", line 941, in wrapper
        return method(self, *args, **kwargs)
      File "/home/blabla/src/python-sdk/examples/tornado/tornading.py", line 199, in get
        self.render("json_output.html", json = json.dumps({"error":"login"}))
      File "/usr/local/lib/python2.6/dist-packages/tornado-1.2-py2.6.egg/tornado/web.py", line 419, in render
        html = self.render_string(template_name, **kwargs)
      File "/usr/local/lib/python2.6/dist-packages/tornado-1.2-py2.6.egg/tornado/web.py", line 520, in render_string
        current_user=self.current_user,
      File "/usr/local/lib/python2.6/dist-packages/tornado-1.2-py2.6.egg/tornado/web.py", line 683, in current_user
        self._current_user = self.get_current_user()
      File "/home/blabla/src/python-sdk/examples/tornado/tornading.py", line 109, in get_current_user
        user = graph.get_object("me")
      File "/home/blabla/src/python-sdk/src/facebook.py", line 88, in get_object
        return self.request(id, args)
      File "/home/blabla/src/python-sdk/src/facebook.py", line 179, in request
        response["error"]["message"])
    GraphAPIError: Error validating access token.
[E 110407 20:44:20 web:1235] 500 GET /fl?access_token=122385271170470|2.teD_D9DV6gegmpgkbZI_Hg__.3600.1302206400-1592301191|GuXEs4YTqsCPDNFU4fhbWuwlvOQ (127.0.0.1) 2714.20ms

尝试/捕获代码：
try: graph = facebook.GraphAPI(access_token) except: assert False, '捕获到异常'

异常处理错误捕获开发者工具 sdk 异常类型 facebook应用 oauth令牌

如何捕获“未捕获异常”？

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