diff --git a/scripts/mbedtls_dev/ecp.py b/scripts/mbedtls_dev/ecp.py
index 6440ba05d5..ff31baedcc 100644
--- a/scripts/mbedtls_dev/ecp.py
+++ b/scripts/mbedtls_dev/ecp.py
@@ -19,11 +19,13 @@ from typing import List
 from . import test_data_generation
 from . import bignum_common
 
+
 class EcpTarget(test_data_generation.BaseTarget):
     #pylint: disable=abstract-method, too-few-public-methods
     """Target for ecp test case generation."""
     target_basename = 'test_suite_ecp.generated'
 
+
 class EcpP192R1Raw(bignum_common.ModOperationCommon,
                    EcpTarget):
     """Test cases for ecp quasi_reduction()."""
@@ -72,6 +74,7 @@ class EcpP192R1Raw(bignum_common.ModOperationCommon,
         result = self.int_a % self.int_n
         return [self.format_result(result)]
 
+
 class EcpP224R1Raw(bignum_common.ModOperationCommon,
                    EcpTarget):
     """Test cases for ecp quasi_reduction()."""
@@ -133,6 +136,7 @@ class EcpP224R1Raw(bignum_common.ModOperationCommon,
         result = self.int_a % self.int_n
         return [self.format_result(result)]
 
+
 class EcpP521R1Raw(bignum_common.ModOperationCommon,
                    EcpTarget):
     """Test cases for ecp quasi_reduction()."""