sd_interpreter.py

import sys
choice = input("Import or type? [import/[anything]]")
if choice == "import":
    file = open(input("execute "))
    code = file.read()
else:
    code = input("")
var = {}
var[0] = 0
var[1] = 0
loc = 0
for i in range(len(code)):
    if code[i] == "+":
        var[0] += 1
    elif code[i] == "-":
        var[0] -= 1
    elif code[i] == "*":
        var[1] += 1
    elif code[i] == "/":
        var[1] -= 1
    elif code[i] == ".":
        if var[1] >= 1:
            code = list(code)
            code[var[1]-1] = str(chr(var[0]))
            "".join(code)
        else:
            print(code[i] + " symbol at position " + str(i+1) + " is attempting to change a position less than 1.")
            print(str("".join(code)))
            sys.exit()
    elif code[i] == ",":
        if var[0] >= 1:
            code = list(code)
            code[var[0]-1] = str(chr(var[1]))
            "".join(code)
        else:
            print(code[i] + " symbol at position " + str(i+1) + " is attempting to change a position less than 1.")
            print(str("".join(code)))
            sys.exit()
    elif code[i] == ":":
        var[0] = ord(input("> "))
    elif code[i] == ";":
        var[1] = ord(input("> "))
    elif code[i] == "@":
        loc = i+1
    elif code[i] == "!":
        string = ""
        for j in range(loc-1):
            string += code[j]
        print(string)
    else:
        print("Syntax error! Unexpected symbol at position " + str(i+1) + ".")
        print(code[i])
        print(str("".join(code)))
        sys.exit()