Update calculator.py

kyu_3/calculator/calculator.py

@@ -1,5 +1,6 @@
 """
-Solution for -> Calculator
+Solution for -> Calculator.
+
 Create a simple calculator that given a string
 of operators '()', '+', '-', '*', '/'  and numbers separated
 by spaces returns the value of that expression.
@@ -10,6 +11,8 @@
 
 class Calculator:
     """
+    Calculator class.
+
     Given string of operators '()', '+', '-', '*', '/'
     and numbers separated by spaces.
     Returns the value of that expression.
@@ -22,6 +25,8 @@ def __init__(self):
     @property
     def result(self) -> float:
         """
+        Get result.
+
         1. Set result value by converting
         string value to a float
         2. Return result value
@@ -34,6 +39,8 @@ def result(self) -> float:
     @staticmethod
     def __calculate(i: int, char: str, strings: list):
         """
+        Calculate method.
+
         1. Perform math operation
         2. Reorganize math expression
 
@@ -63,7 +70,10 @@ def __calculate(i: int, char: str, strings: list):
 
     def __process_math_expression(self, string: str, operators: list) -> str:
         """
-        Perform all operation with multiplications, divisions, additions and subtractions
+        Process math calculation.
+
+        Perform all operation with multiplications, divisions,
+        additions and subtractions.
         :param string: str, input string
         :param operators: list, contains math operators
         :return: str, output string with no ‘*’, ‘/’, ‘+’, ‘-‘
@@ -80,7 +90,9 @@ def __process_math_expression(self, string: str, operators: list) -> str:
 
     def evaluate(self, string: str) -> float:
         """
-        Returns value of the given expression
+        Evaluate method.
+
+        Returns value of the given expression.
         :param string: str, input string to evaluate
         :return: (float) result
         """