SymbolTable.py

import pandas as pd
f = open("filename.txt" , 'r')
data = (f.read()).split("\n")
f.close()

f.open()
data_in_list = (f.read()).split()
f.close()

MOT = {
    'ADD' : ('IS' , 1),
    'SUB' : ('IS' , 1),
    'DIV' : ('IS' , 1),
    'START' : ('AD' , 1)
}

ST = pd.DataFrame(columns = ['index' , 'symbol' , 'address'])
counter = 0
index = 1

for i in data_in_list:
    if i.isalpha():
        if i not in MOT.keys():
            for y in data:
                d = y.split():
                if i in d:
                    entry1 = (index , i , data.index(y))
                    ST.loc[counter] = entry1
                    counter += 1
                    index += 1


print(ST)