v0.3.4

argenta/command/entity.py

@@ -2,7 +2,10 @@ from .params.flag.entity import Flag
 from .params.flag.flags_group.entity import FlagsGroup
 from .exceptions import (InvalidCommandInstanceException,
                          InvalidDescriptionInstanceException,
-                         InvalidFlagsInstanceException, UnprocessedInputFlagException, RepeatedInputFlagsException)
+                         InvalidFlagsInstanceException,
+                         UnprocessedInputFlagException,
+                         RepeatedInputFlagsException,
+                         EmptyInputCommandException)
 
 from typing import Generic, TypeVar
 
@@ -71,6 +74,8 @@ class Command(Generic[T]):
 
     @staticmethod
     def parse_input_command(raw_command: str) -> 'Command[T]':
+        if not raw_command:
+            raise EmptyInputCommandException()
         list_of_tokens = raw_command.split()
         command = list_of_tokens[0]
         list_of_tokens.pop(0)

argenta/command/exceptions.py

@@ -29,21 +29,11 @@ class RepeatedInputFlagsException(Exception):
                 f"Duplicate flag was detected in the input: '{self.flag.get_string_entity()}'")
 
 
-class InvalidInputFlagsHandlerHasBeenAlreadyCreatedException(Exception):
-    def __str__(self):
-        return "Invalid Input Flags Handler has already been created"
-
-
-class RepeatedInputFlagsHandlerHasBeenAlreadyCreatedException(Exception):
-    def __str__(self):
-        return "Repeated Input Flags Handler has already been created"
-
-
-class UnknownCommandHandlerHasBeenAlreadyCreatedException(Exception):
-    def __str__(self):
-        return "Unknown Command Handler has already been created"
-
-
 class IncorrectNumberOfHandlerArgsException(Exception):
     def __str__(self):
         return "Incorrect Input Flags Handler has incorrect number of arguments"
+
+
+class EmptyInputCommandException(Exception):
+    def __str__(self):
+        return "Input Command is empty"

argenta/command/params/flag/entity.py

@@ -36,6 +36,7 @@ class Flag:
                 return True
             else:
                 return False
+
         if isinstance(self.possible_flag_values, list):
             if self.ignore_flag_value_register:
                 if input_flag_value.lower() in [x.lower() for x in self.possible_flag_values]: