'''
Author : Sapan Singh
Email : sapansingh43@gmail.com
'''
def main():
    dct ={ "U4V6Y3USKUYCB6Q5" : {
       "U4V6Y3USKUYCB6Q5.6QCMYABX3D" : {
         "offerTermCode" : "6QCMYABX3D",
         "sku" : "U4V6Y3USKUYCB6Q5",
         "effectiveDate" : "2016-05-31T23:59:59Z",
         "priceDimensions" : {
           "U4V6Y3USKUYCB6Q5.6QCMYABX3D.2TG2D8R56U" : {
             "rateCode" : "U4V6Y3USKUYCB6Q5.6QCMYABX3D.2TG2D8R56U",
             "description" : "Upfront Fee",
             "unit" : "Quantity",
             "pricePerUnit" : {
               "USD" : "34800"
             },
             "appliesTo" : [ ]
           },
           "U4V6Y3USKUYCB6Q5.6QCMYABX3D.6YS6EN2CT7" : {
             "rateCode" : "U4V6Y3USKUYCB6Q5.6QCMYABX3D.6YS6EN2CT7",
             "description" : "USD 0.0 per Redshift, dw2.8xlarge reserved instance applied",
             "beginRange" : "0",
             "endRange" : "Inf",
             "unit" : "Hrs",
             "pricePerUnit" : {
               "USD" : "0.0000000000"
             },
             "appliesTo" : [ ]
           }
         },
         "termAttributes" : {
           "LeaseContractLength" : "1yr",
           "OfferingClass" : "standard",
           "PurchaseOption" : "All Upfront"
         }
       }
       ,
       "U4V6Y3USKUYCB6Q5.4NA7Y494T4" : {
         "offerTermCode" : "4NA7Y494T4",
         "sku" : "U4V6Y3USKUYCB6Q5",
         "effectiveDate" : "2016-09-30T23:59:59Z",
         "priceDimensions" : {
           "U4V6Y3USKUYCB6Q5.4NA7Y494T4.6YS6EN2CT7" : {
             "rateCode" : "U4V6Y3USKUYCB6Q5.4NA7Y494T4.6YS6EN2CT7",
             "description" : "Redshift, dw2.8xlarge reserved instance applied",
             "beginRange" : "0",
             "endRange" : "Inf",
             "unit" : "Hrs",
             "pricePerUnit" : {
               "USD" : "4.8650000000"
             },
             "appliesTo" : [ ]
           }
         },
         "termAttributes" : {
           "LeaseContractLength" : "1yr",
           "OfferingClass" : "standard",
           "PurchaseOption" : "No Upfront"
         }
       },
       "U4V6Y3USKUYCB6Q5.HU7G6KETJZ" : {
         "offerTermCode" : "HU7G6KETJZ",
         "sku" : "U4V6Y3USKUYCB6Q5",
         "effectiveDate" : "2016-05-31T23:59:59Z",
         "priceDimensions" : {
           "U4V6Y3USKUYCB6Q5.HU7G6KETJZ.2TG2D8R56U" : {
             "rateCode" : "U4V6Y3USKUYCB6Q5.HU7G6KETJZ.2TG2D8R56U",
             "description" : "Upfront Fee",
             "unit" : "Quantity",
             "pricePerUnit" : {
               "USD" : "12600"
             },
             "appliesTo" : [ ]
           },
           "U4V6Y3USKUYCB6Q5.HU7G6KETJZ.6YS6EN2CT7" : {
             "rateCode" : "U4V6Y3USKUYCB6Q5.HU7G6KETJZ.6YS6EN2CT7",
             "description" : "Redshift, dw2.8xlarge reserved instance applied",
             "beginRange" : "0",
             "endRange" : "Inf",
             "unit" : "Hrs",
             "pricePerUnit" : {
               "USD" : "2.6125000000"
             },
             "appliesTo" : [ ]
           }
         },
         "termAttributes" : {
           "LeaseContractLength" : "1yr",
           "OfferingClass" : "standard",
           "PurchaseOption" : "Partial Upfront"
         }
       },
       "U4V6Y3USKUYCB6Q5.38NPMPTW36" : {
         "offerTermCode" : "38NPMPTW36",
         "sku" : "U4V6Y3USKUYCB6Q5",
         "effectiveDate" : "2016-05-31T23:59:59Z",
         "priceDimensions" : {
           "U4V6Y3USKUYCB6Q5.38NPMPTW36.2TG2D8R56U" : {
             "rateCode" : "U4V6Y3USKUYCB6Q5.38NPMPTW36.2TG2D8R56U",
             "description" : "Upfront Fee",
             "unit" : "Quantity",
             "pricePerUnit" : {
               "USD" : "22050"
             },
             "appliesTo" : [ ]
           },
           "U4V6Y3USKUYCB6Q5.38NPMPTW36.6YS6EN2CT7" : {
             "rateCode" : "U4V6Y3USKUYCB6Q5.38NPMPTW36.6YS6EN2CT7",
             "description" : "Redshift, dw2.8xlarge reserved instance applied",
             "beginRange" : "0",
             "endRange" : "Inf",
             "unit" : "Hrs",
             "pricePerUnit" : {
               "USD" : "1.1400000000"
             },
             "appliesTo" : [ ]
           }
         },
         "termAttributes" : {
           "LeaseContractLength" : "3yr",
           "OfferingClass" : "standard",
           "PurchaseOption" : "Partial Upfront"
         }
       },
       "U4V6Y3USKUYCB6Q5.NQ3QZPMQV9" : {
         "offerTermCode" : "NQ3QZPMQV9",
         "sku" : "U4V6Y3USKUYCB6Q5",
         "effectiveDate" : "2016-05-31T23:59:59Z",
         "priceDimensions" : {
           "U4V6Y3USKUYCB6Q5.NQ3QZPMQV9.2TG2D8R56U" : {
             "rateCode" : "U4V6Y3USKUYCB6Q5.NQ3QZPMQV9.2TG2D8R56U",
             "description" : "Upfront Fee",
             "unit" : "Quantity",
             "pricePerUnit" : {
               "USD" : "48620"
             },
             "appliesTo" : [ ]
           },
           "U4V6Y3USKUYCB6Q5.NQ3QZPMQV9.6YS6EN2CT7" : {
             "rateCode" : "U4V6Y3USKUYCB6Q5.NQ3QZPMQV9.6YS6EN2CT7",
             "description" : "USD 0.0 per Redshift, dw2.8xlarge reserved instance applied",
             "beginRange" : "0",
             "endRange" : "Inf",
             "unit" : "Hrs",
             "pricePerUnit" : {
               "USD" : "0.0000000000"
             },
             "appliesTo" : [ ]
           }
         },
         "termAttributes" : {
           "LeaseContractLength" : "3yr",
           "OfferingClass" : "standard",
           "PurchaseOption" : "All Upfront"
         }
       }
     }}
    print(dct['U4V6Y3USKUYCB6Q5'].keys())
    print(removedots(dct))
    print(dct['U4V6Y3USKUYCB6Q5'].keys())

def removedots(dct):
   for i in dct:
       if type(dct[i]) == dict:
           dct[i] = removedots(dct[i])
       if '.' in i:
           dct[i.rsplit('.', 1)[1]] = dct.pop(i)
   return dct

if __name__ == '__main__':
    main()