Paste code

#Convert-input-to-Dictionary

from collections import defaultdict
dic = defaultdict(list)

def isfloat(num):
    try:
        float(num)
        return True
    except ValueError:
        return False

#reading the file
with open(&#039;JsimEq.txt&#039;) as f:
    lines = [line.rstrip()  for line in f if line!=&#039;&#039;]


# with open(&#039;jsimeq_test.txt&#039;) as f:
#     lines = [line.rstrip()  for line in f if line!=&#039;&#039;]
  
#print(lines)

for line in lines:
    #removing blank lines
    if line!=&#039;&#039;:
        line= line.replace("exp",&#039;&#039;)
        line= line.replace("ln",&#039;&#039;) 
        line= line.replace("**",&#039;^&#039;) 

        #seperating LHS and RHS
        ls=line.split("=")
        key=ls[0].rstrip()
        s=&#039;&#039;
        #print("Key ", ls[0])
        #Processing the RHS
        for i in ls[1]:
            #Replace all Arithematical Symbols with &#039;@&#039;
            if i in "+-/*^":
                s+=&#039;@&#039;
                continue
            # remove the Parenthesis
            if i not in " ([])":
                s+=i
        #print(s)

        #sperate all the variables in RHS basis &#039;@&#039;
        sl=s.split("@")
        #print(sl)

        #Removing empty strings any constant present in the list
        val= list(set([i for i in sl if not isfloat(i) and i!=&#039;&#039; ]))
        #print(val)

        # check if the given LHS is already present in the dictionary

        if len(dic[key])>0 and dic[key][-1]==&#039;&#039;:
            dic[key][-1]=val
        else:
            for i in val:
                dic[key].append(i)


print(dic)
#print("length of dict ",len(dic))