fix: Fix default encoding when opening files

Author: kvankova

code_embedder/code_embedding.py

@@ -53,7 +53,7 @@ def _read_readme(self, readme_path: str) -> list[str]:
         if not readme_path.endswith(".md"):
             raise ValueError("README path must end with .md")
 
-        with open(readme_path) as readme_file:
+        with open(readme_path, encoding="utf-8") as readme_file:
             return readme_file.readlines()
 
     def _extract_scripts(
@@ -86,5 +86,5 @@ def _update_readme(
 
         updated_readme += readme_content[readme_content_cursor:]
 
-        with open(readme_path, "w") as readme_file:
+        with open(readme_path, "w", encoding="utf-8") as readme_file:
             readme_file.writelines(updated_readme)

code_embedder/script_content_reader.py

@@ -24,7 +24,7 @@ def _read_full_script(self, scripts: list[ScriptMetadata]) -> list[ScriptMetadat
 
         for script in scripts:
             try:
-                with open(script.path) as script_file:
+                with open(script.path, encoding="utf-8") as script_file:
                     script.content = script_file.read()
                     scripts_with_full_contents.append(script)