Mass spectrometry and 'One hit wonders' dictionary with exclusive peptides for proteins in python

Question

[deb1500]

Hi!

I have a list with the resulting peptides of hydrolysis using trypsin and I have another list with the ACs from uniprot, of each hydrolysed protein. I also have a dictionary with the ACs and the sequence of the proteins before the hydrolysis, how can I create a dictionary with python that the keys are the resulting peptide of hydrolysis and the values are the ACs of each proteins that has given rise to the resulting peptide.

Something like:

peptides=['KHKJS KHGSK KSJS', 'KSHO JSKS',..]
ACs=['P78499', 'Q84939', ...]
d={'KHKJS':['P73093','Q84903',..]}