Is there anyway you guys can correct this. It states " File "main.py", line 28, in

temp1 = d1[temp]

KeyError: "'"

Expected output: Input String: characters in a dictionary in a dictionary in a tuple in a list in a dictionary in a string

This assignment is on to make an basic parser for an input string that is somewhat like Python.

Your program will read a data string, identify the control characters, and print out the overall structure of the string. Here's an example:

Input String: [{1}] Output: Number inside a dictionary inside a list 

• The control characters you need to be concerned with are:, { } (dictionary), () (tuple), and ' " (string). Note that all string start with a single quote and end with a double quote (to reduce complexity in your solution).
• The program must print out the structures starting with the innermost first and ending with the outermost
• Once you start getting structure close characters (e.g. ] } " ) you can ignore any new start character structures (e.g. [ } ' )
• You must also identify an errors in the closing order for the structures. Once you identify an error, print an Error message and stop processing

Input String: {[(abc)}] Output: Characters inside a tuple inside a ERROR 

My code is given below.

My Code:

s = input("Input String: ")

stack = []

c=0

c1=0

c2=0

for i in s:

if(i!=']' and i!=')' and i!='}' and i.isdigit()==False and i.isalpha()==False):

stack.append(i)

c1+=1

if(i=="]" or i=="}" or i==")"):

c2=c

break

c+=1

if(s[c1].isdigit()==True):

print("number ",end="")

elif(s[c1].isalpha()==True):

print("characters ",end ="")

d = {"[":"list ","{":"dictionary ","(":"tuple "}

d1 = {"[":"]","{":"}","(":")"}

while(len(stack)!=0):

temp = stack.pop()

temp1 = d1[temp]

if(s[c2]==temp1):

print("in a "+d[temp],end="")

else:

print("in a ERROR ",end="")

break

c2+=1