1 files changed, 34 insertions, 0 deletions
diff --git a/extension/examples/filesystem/real.py b/extension/examples/filesystem/real.py
new file mode 100644
index 00000000..ec7aa693
--- /dev/null
+++ b/extension/examples/filesystem/real.py
@@ -0,0 +1,34 @@
+import os
+from typing import List
+from filesystem.filesystem import FileSystem
+
+
+class RealFileSystem(FileSystem):
+    """A filesystem that reads/writes from the actual filesystem."""
+
+    def read(self, path) -> str:
+        with open(path, "r") as f:
+            return f.read()
+
+    def readlines(self, path) -> List[str]:
+        with open(path, "r") as f:
+            return f.readlines()
+
+    def write(self, path, content):
+        with open(path, "w") as f:
+            f.write(content)
+
+    def exists(self, path) -> bool:
+        return os.path.exists(path)
+
+    def rename_file(self, filepath: str, new_filepath: str):
+        os.rename(filepath, new_filepath)
+
+    def rename_directory(self, path: str, new_path: str):
+        os.rename(path, new_path)
+
+    def delete_file(self, filepath: str):
+        os.remove(filepath)
+
+    def add_directory(self, path: str):
+        os.makedirs(path)