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Co-authored-by: Lucas McDonald <[email protected]>

Author: imabhichow

Examples/runtimes/python/DynamoDBEncryption/src/keyring/raw_rsa_keyring_example.py

@@ -196,9 +196,9 @@ def should_generate_new_rsa_key_pair() -> bool:
 
     # If only one file is present: throw exception
     if private_key_file and not public_key_file:
-        raise RuntimeError(f"Missing public key file at {EXAMPLE_RSA_PUBLIC_KEY_FILENAME}")
+        raise ValueError(f"Missing public key file at {EXAMPLE_RSA_PUBLIC_KEY_FILENAME}")
     if not private_key_file and public_key_file:
-        raise RuntimeError(f"Missing private key file at {EXAMPLE_RSA_PRIVATE_KEY_FILENAME}")
+        raise ValueError(f"Missing private key file at {EXAMPLE_RSA_PRIVATE_KEY_FILENAME}")
 
     # If neither file is present, generate a new key pair
     return True
@@ -208,7 +208,7 @@ def generate_rsa_key_pair():
     """Generate a new RSA key pair and save to PEM files."""
     # Safety check: Validate neither file is present
     if os.path.exists(EXAMPLE_RSA_PRIVATE_KEY_FILENAME) or os.path.exists(EXAMPLE_RSA_PUBLIC_KEY_FILENAME):
-        raise RuntimeError("generateRsaKeyPair will not overwrite existing PEM files")
+        raise FileExistsError("generateRsaKeyPair will not overwrite existing PEM files")
 
     # This code will generate a new RSA key pair for example use.
     # The public and private key will be written to the files:
@@ -230,7 +230,7 @@ def generate_rsa_key_pair():
         with open(EXAMPLE_RSA_PRIVATE_KEY_FILENAME, "wb") as f:
             f.write(private_key_pem)
     except IOError as e:
-        raise RuntimeError("IOError while writing private key PEM") from e
+        raise OSError("IOError while writing private key PEM") from e
 
     # Write public key PEM file
     public_key = private_key.public_key()

Examples/runtimes/python/DynamoDBEncryption/src/scan_error_example.py

@@ -4,7 +4,7 @@
 """
 Example demonstrating error handling for failed decryption during DynamoDB Scan operations.
 
-Uses the low level Scan operation to show how to retrieve error messages from the
+Uses the Scan operation to show how to retrieve error messages from the
 returned CollectionOfErrors when some of the Scan results do not decrypt successfully.
 
 Running this example requires access to the DDB Table whose name is provided in