arrays - How to read data and create a dictionary of dictionaries in Python? -

arrays - How to read data and create a dictionary of dictionaries in Python? -

i need read huge database hdf5 files , organize in nice way create easy read , use.

i saw post python list variable name , i'm trying create dictionary of dictionaries.

basically have list of info sets , variables need read form hdf5 files. illustration created 2 lists:

dataset = [0,1,2,3] var = ['a','b','c']

now, there legacy "home brewed" read_hdf5(dataset,var) function reads info hdf5 files , returns appropriate array.

i can read specific dataset (say 0) @ time creating dictionary this:

data = {} type in var: data[type] = read_hdf5(0,type)

which gives me nice dictionary if info each variable in dataset 0.

now wan able implement dictionary of dictionaries can able access info this:

data[dataset][var]

that returns array of info given set , variable

i tried next thing loop doing overwriting lastly variable read:

for set in dataset: type in var: data[set] = {'set':set, str(type): read_hdf5(set,type)}

any ideas? give thanks you!!!

you have create new dict each set before iterating on vars:

dataset = [0,1,2,3] var = ['a', 'b', 'c'] info = {} set in datasets: data[set] = {} type in var: data[set][type] = read_hdf5(set, type)

as side note: set , type builtin names you'd improve utilize else.

python arrays database database-design dictionary