python - Save KeyErrors and IndexErrors to a list/dict -

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i'm trying extract data api, , expect receive keyerror , indexerror, use try/except function catch them. first create list of items i'll loop through extract information api responses. create dataframe stores information items had no errors.

l= ["a","b","c","d"]  def extract_info_from_one_response(response, idx):     try:         response = response.json()         d = {             ### codes ##             }     ## error management     except keyerror,e:         print idx, l[idx], str(e)         return {}     except indexerror,e:         print idx, l[idx], str(e)         return {}     dat = pd.dataframe([extract_info_from_one_response(response, idx) idx, response in enumerate(responses)], index=l)

when errors occur, python prints out [1]the index of problematic item, [2] name of item , [3]the details on error took place. how save/capture these 3 outputs, save them objects or create dataframe these 3 pieces of information?

are asking how trace error?

if so,the traceback module this:

in [1]: import traceback  in [2]: try:    ...:     = []    ...:     a[2] = 1    ...: except exception:    ...:     y = traceback.format_exc()    ...:       in [4]: print y traceback (most recent call last):   file "<ipython-input-2-ac34fe2721d3>", line 3, in <module>     a[2] = 1 indexerror: list assignment index out of range

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