Solution

app/main.py

@@ -1,13 +1,27 @@
 def format_linter_error(error: dict) -> dict:
-    # write your code here
-    pass
+    return {
+        "line": error["line_number"], "column": error["column_number"],
+        "message": error["text"], "name": error["code"],
+        "source": "flake8"
+    }
 
 
 def format_single_linter_file(file_path: str, errors: list) -> dict:
-    # write your code here
-    pass
+    return {"errors": [{"line": error["line_number"],
+                        "column": error["column_number"],
+                        "message": error["text"], "name": error["code"],
+                        "source": "flake8"} for error in errors],
+            "path": file_path, "status": ("failed" if errors else "passed")}
 
 
 def format_linter_report(linter_report: dict) -> list:
-    # write your code here
-    pass
+    return [
+        {
+            "errors": [{"line": line["line_number"],
+                        "column": line["column_number"],
+                        "message": line["text"], "name": line["code"],
+                        "source": "flake8"} for line in value],
+            "path": key,
+            "status": ("failed" if value else "passed")
+        }
+        for key, value in linter_report.items()]