diff --git a/src/party/__init__.py b/src/pyalibert/__init__.py
similarity index 100%
rename from src/party/__init__.py
rename to src/pyalibert/__init__.py
diff --git a/src/party/forward.py b/src/pyalibert/forward.py
similarity index 100%
rename from src/party/forward.py
rename to src/pyalibert/forward.py
diff --git a/src/party/parser.py b/src/pyalibert/parser.py
similarity index 100%
rename from src/party/parser.py
rename to src/pyalibert/parser.py
diff --git a/src/party/result.py b/src/pyalibert/result.py
similarity index 82%
rename from src/party/result.py
rename to src/pyalibert/result.py
index 3149290..edf00ba 100644
--- a/src/party/result.py
+++ b/src/pyalibert/result.py
@@ -1,5 +1,5 @@
 from dataclasses import dataclass
-from typing import Union, Callable, Generic, TypeVar
+from typing import Union, Generic, TypeVar
 
 
 P = TypeVar("P")
@@ -17,7 +17,7 @@ class Failure:
 
 
 P = TypeVar("P")
-Result = Union["Failure", "Success[P]"]
+Result = Union[Failure, Success[P]]
 
 
 class ParseError(BaseException):
@@ -32,8 +32,6 @@ class ParseError(BaseException):
         message = f"""
 Parsing failed at position {self.failure.at_index} of stream :
 ${fail_section}
-
-Expected one of:
-{failure.expected}
+Expected one of: {failure.expected}
 """
         super().__init__(message)