Below is one of the dictionaries. I was able to place it into a multiindex dataframe using the code below.
But my challenge is that I have 50 of this nested dictionaries as an output (see the below list). I want to iterate through it and develop the
multi-index dataframe. BUT I could not. I hope someone can assist.


nested_dict = {'Pset_WallCommon': {'Reference': 'Basic Wall:Interior - Partition (92mm Stud)', 'LoadBearing': False,
                                 'ExtendToStructure': False, 'IsExternal': False, 'id': 4093},
             'PSet_Revit_Constraints': {'Location Line': 2, 'Base Constraint': 'Level 1', 'Base Offset': 0.0,
                                        'Base is Attached': False, 'Base Extension Distance': 0.0,
                                        'Top Constraint': 'Up to level: Level 2',
                                        'Unconnected Height': 2.795000000000196, 'Top Offset': -0.3050000000000001,
                                        'Top is Attached': False, 'Top Extension Distance': 0.0, 'Room Bounding': True,
                                        'Related to Mass': False, 'id': 4142},
             'PSet_Revit_Other': {'InstallationDate': 'InstallationDate', 'SerialNumber': 'SerialNumber',
                                  'WarrantyStartDate': 'WarrantyStartDate', 'BarCode': 'BarCode',
                                  'AssetIdentifier': 'AssetIdentifier', 'TagNumber': 'TagNumber', 'id': 4144},
             'PSet_Revit_Phasing': {'Phase Created': 'New Construction', 'id': 4146},
             'PSet_Revit_Structural': {'Structural Usage': 0, 'id': 4148},
             'PSet_Revit_Dimensions': {'Length': 3.791499999999996, 'Area': 10.01448500000069,
                                       'Volume': 1.241796140000085, 'id': 4150},
             'PSet_Revit_Type_Construction': {'Wrapping at Inserts': 0, 'Wrapping at Ends': 2, 'Width': 0.124,
                                              'Function': 0, 'id': 4152},
             'PSet_Revit_Type_Graphics': {'Coarse Scale Fill Color': 0, 'id': 4153},
             'PSet_Revit_Type_Identity Data': {'Manufacturer': 'Manufacturer', 'Assembly Description': '',
                                               'Assembly Code': '', 'id': 4154},
             'PSet_Revit_Type_Other': {'AccessibilityPerformance': 'AccessibilityPerformance',
                                       'CodePerformance': 'CodePerformance', 'Color': 'Color',
                                       'Constituents': 'Constituents', 'Features': 'Features', 'Finish': 'Finish',
                                       'Grade': 'Grade', 'Material': 'Material', 'ModelReference': 'ModelReference',
                                       'NominalHeight': 'NominalHeight', 'NominalLength': 'NominalLength',
                                       'NominalWidth': 'NominalWidth', 'ProductionYear': 'ProductionYear',
                                       'Reference': 'Reference', 'Shape': 'Shape', 'Size': 'Size',
                                       'SustainabilityPerformance': 'SustainabilityPerformance',
                                       'WarrantyDescription': 'WarrantyDescription',
                                       'WarrantyDurationLabor': 'WarrantyDurationLabor',
                                       'WarrantyDurationParts': 'WarrantyDurationParts',
                                       'WarrantyGuarantorLabor': 'WarrantyGuarantorLabor',
                                       'WarrantyGuarantorParts': 'WarrantyGuarantorParts', 'ModelNumber': 'ModelNumber',
                                       'ExpectedLife': 'ExpectedLife', 'ReplacementCost': 'ReplacementCost',
                                       'AssetAccountingType': 'FIXED', 'id': 4155}}



redeveloped_dict = {}

for outerKey, innerDict in nested_dict.items():
    for innerKey, values in innerDict.items():
        redeveloped_dict[(outerKey, innerKey)] = values

#print(redeveloped_dict)

df1 = pd.DataFrame.from_dict(reformed_dict, orient='index').transpose()
df1.columns = pd.MultiIndex.from_tuples(df1.columns)
df1







The complete collection of nested_dictionaries (each nested_dictionary starts from 'Pset_WallCommon':.....)

{'Pset_WallCommon': {'Reference': 'Basic Wall:Interior - Partition (92mm Stud)', 'LoadBearing': False, 'ExtendToStructure': False, 'IsExternal': False, 'id': 4093}, 'PSet_Revit_Constraints': {'Location Line': 2, 'Base Constraint': 'Level 1', 'Base Offset': 0.0, 'Base is Attached': False, 'Base Extension Distance': 0.0, 'Top Constraint': 'Up to level: Level 2', 'Unconnected Height': 2.795000000000196, 'Top Offset': -0.3050000000000001, 'Top is Attached': False, 'Top Extension Distance': 0.0, 'Room Bounding': True, 'Related to Mass': False, 'id': 4142}, 'PSet_Revit_Other': {'InstallationDate': 'InstallationDate', 'SerialNumber': 'SerialNumber', 'WarrantyStartDate': 'WarrantyStartDate', 'BarCode': 'BarCode', 'AssetIdentifier': 'AssetIdentifier', 'TagNumber': 'TagNumber', 'id': 4144}, 'PSet_Revit_Phasing': {'Phase Created': 'New Construction', 'id': 4146}, 'PSet_Revit_Structural': {'Structural Usage': 0, 'id': 4148}, 'PSet_Revit_Dimensions': {'Length': 3.791499999999996, 'Area': 10.01448500000069, 'Volume': 1.241796140000085, 'id': 4150}, 'PSet_Revit_Type_Construction': {'Wrapping at Inserts': 0, 'Wrapping at Ends': 2, 'Width': 0.124, 'Function': 0, 'id': 4152}, 'PSet_Revit_Type_Graphics': {'Coarse Scale Fill Color': 0, 'id': 4153}, 'PSet_Revit_Type_Identity Data': {'Manufacturer': 'Manufacturer', 'Assembly Description': '', 'Assembly Code': '', 'id': 4154}, 'PSet_Revit_Type_Other': {'AccessibilityPerformance': 'AccessibilityPerformance', 'CodePerformance': 'CodePerformance', 'Color': 'Color', 'Constituents': 'Constituents', 'Features': 'Features', 'Finish': 'Finish', 'Grade': 'Grade', 'Material': 'Material', 'ModelReference': 'ModelReference', 'NominalHeight': 'NominalHeight', 'NominalLength': 'NominalLength', 'NominalWidth': 'NominalWidth', 'ProductionYear': 'ProductionYear', 'Reference': 'Reference', 'Shape': 'Shape', 'Size': 'Size', 'SustainabilityPerformance': 'SustainabilityPerformance', 'WarrantyDescription': 'WarrantyDescription', 'WarrantyDurationLabor': 'WarrantyDurationLabor', 'WarrantyDurationParts': 'WarrantyDurationParts', 'WarrantyGuarantorLabor': 'WarrantyGuarantorLabor', 'WarrantyGuarantorParts': 'WarrantyGuarantorParts', 'ModelNumber': 'ModelNumber', 'ExpectedLife': 'ExpectedLife', 'ReplacementCost': 'ReplacementCost', 'AssetAccountingType': 'FIXED', 'id': 4155}}
{'Pset_WallCommon': {'Reference': 'Basic Wall:Party Wall - CMU Residential Unit Dimising Wall', 'LoadBearing': False, 'ExtendToStructure': False, 'IsExternal': True, 'id': 4246}, 'PSet_Revit_Constraints': {'Location Line': 0, 'Base Constraint': 'Level 1', 'Base Offset': 0.0, 'Base is Attached': False, 'Base Extension Distance': 0.0, 'Top Constraint': 'Up to level: Level 2', 'Unconnected Height': 2.795000000000196, 'Top Offset': -0.3050000000000002, 'Top is Attached': False, 'Top Extension Distance': 0.0, 'Room Bounding': True, 'Related to Mass': False, 'id': 4294}, 'PSet_Revit_Other': {'InstallationDate': 'InstallationDate', 'SerialNumber': 'SerialNumber', 'WarrantyStartDate': 'WarrantyStartDate', 'BarCode': 'BarCode', 'AssetIdentifier': 'AssetIdentifier', 'TagNumber': 'TagNumber', 'id': 4296}, 'PSet_Revit_Phasing': {'Phase Created': 'New Construction', 'id': 4298}, 'PSet_Revit_Structural': {'Structural Usage': 0, 'id': 4300}, 'PSet_Revit_Dimensions': {'Length': 4.191499999999984, 'Area': 11.74179500000078, 'Volume': 5.788704935000469, 'id': 4302}, 'PSet_Revit_Type_Construction': {'Wrapping at Inserts': 0, 'Wrapping at Ends': 0, 'Width': 0.5500000000000002, 'Function': 5, 'id': 4304}, 'PSet_Revit_Type_Graphics': {'Coarse Scale Fill Color': 0, 'id': 4305}, 'PSet_Revit_Type_Identity Data': {'Manufacturer': 'Manufacturer', 'Assembly Description': '', 'Assembly Code': '', 'id': 4306}, 'PSet_Revit_Type_Other': {'AccessibilityPerformance': 'AccessibilityPerformance', 'CodePerformance': 'CodePerformance', 'Color': 'Color', 'Constituents': 'Constituents', 'Features': 'Features', 'Finish': 'Finish', 'Grade': 'Grade', 'Material': 'Material', 'ModelReference': 'ModelReference', 'NominalHeight': 'NominalHeight', 'NominalLength': 'NominalLength', 'NominalWidth': 'NominalWidth', 'ProductionYear': 'ProductionYear', 'Reference': 'Reference', 'Shape': 'Shape', 'Size': 'Size', 'SustainabilityPerformance': 'SustainabilityPerformance', 'WarrantyDescription': 'WarrantyDescription', 'WarrantyDurationLabor': 'WarrantyDurationLabor', 'WarrantyDurationParts': 'WarrantyDurationParts', 'WarrantyGuarantorLabor': 'WarrantyGuarantorLabor', 'WarrantyGuarantorParts': 'WarrantyGuarantorParts', 'ModelNumber': 'ModelNumber', 'ExpectedLife': 'ExpectedLife', 'ReplacementCost': 'ReplacementCost', 'AssetAccountingType': 'FIXED', 'id': 4307}}
{'Pset_WallCommon': {'Reference': 'Basic Wall:Party Wall - CMU Residential Unit Dimising Wall', 'LoadBearing': False, 'ExtendToStructure': False, 'IsExternal': True, 'id': 4356}, 'PSet_Revit_Constraints': {'Location Line': 0, 'Base Constraint': 'Level 1', 'Base Offset': 0.0, 'Base is Attached': False, 'Base Extension Distance': 0.0, 'Top Constraint': 'Up to level: Level 2', 'Unconnected Height': 2.795000000000196, 'Top Offset': -0.3050000000000001, 'Top is Attached': False, 'Top Extension Distance': 0.0, 'Room Bounding': True, 'Related to Mass': False, 'id': 4372}, 'PSet_Revit_Other': {'InstallationDate': 'InstallationDate', 'SerialNumber': 'SerialNumber', 'WarrantyStartDate': 'WarrantyStartDate', 'BarCode': 'BarCode', 'AssetIdentifier': 'AssetIdentifier', 'TagNumber': 'TagNumber', 'id': 4374}, 'PSet_Revit_Phasing': {'Phase Created': 'New Construction', 'id': 4376}, 'PSet_Revit_Structural': {'Structural Usage': 0, 'id': 4378}, 'PSet_Revit_Dimensions': {'Length': 4.1915, 'Area': 11.74179500000083, 'Volume': 5.788704935000408, 'id': 4380}, 'PSet_Revit_Type_Construction': {'Wrapping at Inserts': 0, 'Wrapping at Ends': 0, 'Width': 0.5500000000000002, 'Function': 5, 'id': 4304}, 'PSet_Revit_Type_Graphics': {'Coarse Scale Fill Color': 0, 'id': 4305}, 'PSet_Revit_Type_Identity Data': {'Manufacturer': 'Manufacturer', 'Assembly Description': '', 'Assembly Code': '', 'id': 4306}, 'PSet_Revit_Type_Other': {'AccessibilityPerformance': 'AccessibilityPerformance', 'CodePerformance': 'CodePerformance', 'Color': 'Color', 'Constituents': 'Constituents', 'Features': 'Features', 'Finish': 'Finish', 'Grade': 'Grade', 'Material': 'Material', 'ModelReference': 'ModelReference', 'NominalHeight': 'NominalHeight', 'NominalLength': 'NominalLength', 'NominalWidth': 'NominalWidth', 'ProductionYear': 'ProductionYear', 'Reference': 'Reference', 'Shape': 'Shape', 'Size': 'Size', 'SustainabilityPerformance': 'SustainabilityPerformance', 'WarrantyDescription': 'WarrantyDescription', 'WarrantyDurationLabor': 'WarrantyDurationLabor', 'WarrantyDurationParts': 'WarrantyDurationParts', 'WarrantyGuarantorLabor': 'WarrantyGuarantorLabor', 'WarrantyGuarantorParts': 'WarrantyGuarantorParts', 'ModelNumber': 'ModelNumber', 'ExpectedLife': 'ExpectedLife', 'ReplacementCost': 'ReplacementCost', 'AssetAccountingType': 'FIXED', 'id': 4307}}
{'Pset_WallCommon': {'Reference': 'Basic Wall:Party Wall - CMU Residential Unit Dimising Wall', 'LoadBearing': False, 'ExtendToStructure': False, 'IsExternal': True, 'id': 4422}, 'PSet_Revit_Constraints': {'Location Line': 0, 'Base Constraint': 'Level 1', 'Base Offset': 0.0, 'Base is Attached': False, 'Base Extension Distance': 0.0, 'Top Constraint': 'Up to level: Level 2', 'Unconnected Height': 2.795000000000196, 'Top Offset': -0.3050000000000001, 'Top is Attached': False, 'Top Extension Distance': 0.0, 'Room Bounding': True, 'Related to Mass': False, 'id': 4437}, 'PSet_Revit_Other': {'InstallationDate': 'InstallationDate', 'SerialNumber': 'SerialNumber', 'WarrantyStartDate': 'WarrantyStartDate', 'BarCode': 'BarCode', 'AssetIdentifier': 'AssetIdentifier', 'TagNumber': 'TagNumber', 'id': 4439}, 'PSet_Revit_Phasing': {'Phase Created': 'New Construction', 'id': 4441}, 'PSet_Revit_Structural': {'Structural Usage': 0, 'id': 4443}, 'PSet_Revit_Dimensions': {'Length': 2.200000000000027, 'Volume': 2.010723000000178, 'id': 4445}, 'PSet_Revit_Type_Construction': {'Wrapping at Inserts': 0, 'Wrapping at Ends': 0, 'Width': 0.5500000000000002, 'Function': 5, 'id': 4304}, 'PSet_Revit_Type_Graphics': {'Coarse Scale Fill Color': 0, 'id': 4305}, 'PSet_Revit_Type_Identity Data': {'Manufacturer': 'Manufacturer', 'Assembly Description': '', 'Assembly Code': '', 'id': 4306}, 'PSet_Revit_Type_Other': {'AccessibilityPerformance': 'AccessibilityPerformance', 'CodePerformance': 'CodePerformance', 'Color': 'Color', 'Constituents': 'Constituents', 'Features': 'Features', 'Finish': 'Finish', 'Grade': 'Grade', 'Material': 'Material', 'ModelReference': 'ModelReference', 'NominalHeight': 'NominalHeight', 'NominalLength': 'NominalLength', 'NominalWidth': 'NominalWidth', 'ProductionYear': 'ProductionYear', 'Reference': 'Reference', 'Shape': 'Shape', 'Size': 'Size', 'SustainabilityPerformance': 'SustainabilityPerformance', 'WarrantyDescription': 'WarrantyDescription', 'WarrantyDurationLabor': 'WarrantyDurationLabor', 'WarrantyDurationParts': 'WarrantyDurationParts', 'WarrantyGuarantorLabor': 'WarrantyGuarantorLabor', 'WarrantyGuarantorParts': 'WarrantyGuarantorParts', 'ModelNumber': 'ModelNumber', 'ExpectedLife': 'ExpectedLife', 'ReplacementCost': 'ReplacementCost', 'AssetAccountingType': 'FIXED', 'id': 4307}}