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pythondictionarypython-3.6keyerror

How to add particular element of dict

sleeps=[{"summaryId ": "x209bf59-59b0c5a8-585c ", 
         "validation ": "AUTO_TENTATIVE ", 
         "durationInSeconds ": 22620, 
         "startTimeInSeconds ": 1504757160, 
         "awakeDurationInSeconds ": 900, 
         "startTimeOffsetInSeconds ": -14400, 
         "deepSleepDurationInSeconds ": 8160, 
         "lightSleepDurationInSeconds ": 13560},
        {"summaryId ": "x209bf59-59b0c5a8-23a0 ", 
         "validation ": "AUTO_TENTATIVE ",
         "durationInSeconds ": 9120, 
         "startTimeInSeconds ": 1504757160,
         "awakeDurationInSeconds ": 300, 
         "startTimeOffsetInSeconds ": -14400, 
         "deepSleepDurationInSeconds ": 1680, 
         "lightSleepDurationInSeconds ": 7140}
       ]

res = sum([x["durationInSeconds"] for x in sleeps]) 
print(res)

This is throwing a Keyerror.

Solution

  • The key you want to modify has a redundant space in your dict definition

    "durationInSeconds "
                  ^