Fix: clean __str__ method for token

mapytex/calculus/API/tokens/token.py

@@ -44,7 +44,7 @@ class Token(object):
 
     def explain(self):
         """ Yield every calculus step which have lead to self
-        
+
         :example:
         >>> from mapytex.calculus.API import Expression
         >>> e = Expression.from_str("2+3*4")
@@ -67,14 +67,7 @@ class Token(object):
         return f"<{self.__class__.__name__} {self.__txt__}>"
 
     def __str__(self):
-        if self.RENDER == "tex":
-            return self.__tex__
-        elif self.RENDER == "txt":
-            return self.__txt__
-        else:
-            raise ValueError(f"Unknow render {self.RENDER}")
-
-        # return renders[self.RENDER](self._mo)
+        return renders[self.RENDER](self._mo)
 
     @property
     def __txt__(self):
@@ -265,7 +258,6 @@ class Token(object):
     """
         return self._operate(other, "^")
 
-
     def _roperate(self, other, operation):
         """ Make a operation between 2 Tokens """
         from ..expression import Expression
@@ -315,6 +307,7 @@ class Token(object):
         <Linear x - 3>
         """
         return self._roperate(other, "-")
+
     def __rmul__(self, other):
         """ Multiply 2 Tokens or a Token and a Expression
 
@@ -342,7 +335,6 @@ class Token(object):
         """
         return self._roperate(other, "/")
 
-
     def _get_soul(self, other=None):
         """ Get the builtin soul of self or other """
         if isinstance(other, Token):