✓ SANDBOX VERIFIED (95% Confidence)
python
ID: rec_test_001
TypeError: unsupported operand type(s) for +: 'int' and 'str'
Attempting to add int and str directly without cast.
💡 Verified Solution
Cast integer to string using str(val) or format string.
Patch / Unified Code Diff:
--- old.py
+++ new.py
@@ -1,1 +1,1 @@
-res = 5 + 'test'
+res = str(5) + 'test'
Official Primary Reference:
https://docs.python.org/3/library/functions.html#func-str
🧪 Sandbox Execution Evidence
Exit Code: 0
Tests Passed: 1 / 1
Confidence: 95%
Protocol: MCP 2026
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