Matlab Script in Python to get call data

Dear All,

my data file is like this in .mat: data_input_file . First colum: year; Second colum: days; Third colum: data

Initially, I wrote a code in Matab to pick the data (CF) in a sliding window fashion (-5, +5) days and then stacks the values in other variable . MAtlab script is

bpn=1
 for i = 1:lengday % for i in range(lengday)
        zz2 = 0;
        zz=0;
        for j = -5:5  % days to be stacked
            k=i+j;
            if k > lengday; k = lengday; end
            if k <1; k = 1; end
            zz =CFdata(k).NCF(1:end,bpn)'./max(CFdata(k).NCF(1:end,bpn))/(abs(j)+1);
            zz2= zz2+zz;
  end

I required to transform my script to python. However, the last line of script is not working: Here is my attempted, these variables are defined in below, if i dont use the [K] , it will work but with [k], it gives the error.

       zz =mat['CFdata'][k]['NCF'][0:lastday,1]/max([mat['CFdata']['NCF'][0:lastday,1]])/[abs(j)+1]

Function of the above line: This line select a specific day, then take the data of plus/mins 5 days (around the selected day). Afterward, stack the data of all 11 days.

Parameteres used in the above line is defined defined as below:

parameteres used here difinied as 
CFdata=mat.get('CFdata')
time=mat.get('CFtime')
day=CFdata["day"]
year=CFdata["year"]
NCF=CFdata["NCF"]
firstday=1
lengday=len(day[0])

[Yongjian Feng]

So this is more like a question about python?

[AA]

yeah, I want to convert this matlab script in python.