Read/write the pyproject.tom file using utf-8

CHANGELOG.md

@@ -12,6 +12,7 @@
 
 - Changed the dependency installation order, deepest dependencies are now installed first.
 - Improved solver error messages.
+- `poetry` now always reads/writes the `pyproject.toml` file with the `utf-8` encoding.
 
 ### Fixed
 

poetry/utils/toml_file.py

@@ -17,7 +17,7 @@ class TomlFile:
         return self._path
 
     def read(self, raw=False):  # type: (bool) -> dict
-        with self._path.open() as f:
+        with self._path.open(encoding="utf-8") as f:
             if raw:
                 return toml.loads(f.read())
 
@@ -29,7 +29,7 @@ class TomlFile:
         else:
             data = dumps(data)
 
-        with self._path.open("w") as f:
+        with self._path.open("w", encoding="utf-8") as f:
             f.write(data)
 
     def __getattr__(self, item):