Build data using dictionary - python-2.7

Question

I am new to python and i am still learning how it all works. Its been just a week since i started.
I am trying to code a program which does this:
Reads 4 columns from a file (ref input file above)
Get date, day and count from the file
And construct an dictionary to represent date day and count.
basically i wanted to represent the data in something like below and I am stucked in the syntax.
{
"xyz" :
{"Sunday" : {
"20180101" : 72326,
"20180108" : 71120
}
"Monday" : {
"20171225" : 51954,
"20180102" : 51954
}
}
}
INPUT FILE:
DateDay value count floatex
20171225Monday | 270613| 51954|11.41|
20171226Tuesday | 133579| 46126|12.01|
20171227Wednesday| 630613| 71954|11.41|
20171228Thursday | 253779| 96126|12.01|
20171229Friday | 688613| 71054|11.41|
20171230Saturday | 633779| 66126|12.01|
20180101Sunday | 633779| 72326|12.01|
20180102Monday | 630613| 91954|11.41|
20180103Tuesday | 538779| 73326|12.01|
20180104Wednesday| 630613| 61954|11.41|
20180105Thursday | 393379| 75146|12.01|
20180106Friday | 130613| 51954|11.41|
20180107Saturday | 2643329| 70126|12.01|
20180108Sunday | 863979| 71120|12.01|
This is what i Have but its far from what i want: Infact its throwing error now.. But that is not my question. Basically i am trying to understand how do i create the nested dictionary based on the input data
def buildInputDataDictionary(file, ind):
dateCount = {}
dateDay = {}
#dictData = {}
# dateCount[dictData] = {}
with open(file) as f:
for line in f:
items = line.split("|")
date=items[0].strip()[0:8] ##strip spaces and substring to get only the date
count= items[2].strip()
day= items[0].strip()[8:]
dateCount[date] = count
dateDay[date] = day
dictData = {}
dictData[date] = {}
dictData [ind][date] = count
return dateCount,dateDay,dictData
dc,dd, di= buildInputDataDictionary(autoInqRhf, "xyz")
print dd
print dc
print di

Answer 1

In your current script you reset the dictionary in each for loop. You only need to initiate it once outside the loop. When adding nested data you have to make sure, that all keys above the one you want to enter already exists. You can do this like this
#initate dictionary with your identifier as first object
dictData = {ind: dict()}
with open(file) as f:
for line in f:
# extact your data (haven't tested your code)
items = line.split("|")
day = items[0].strip()[0:8]
date = items[0].strip()[0:8]
count = items[2].strip()
# add days
if not day in dictData[ind].keys():
dictData[ind][day] = dict()
dictData[ind][day][date] = count