test: Fix pep8 of touched file

Can be reviewed with --word-diff-regex=. --ignore-all-space

test/functional/rpc_scantxoutset.py

@@ -10,9 +10,11 @@ from decimal import Decimal
 import shutil
 import os
 
+
 def descriptors(out):
     return sorted(u['desc'] for u in out['unspents'])
 
+
 class ScantxoutsetTest(BitcoinTestFramework):
     def set_test_params(self):
         self.num_nodes = 1
@@ -52,7 +54,6 @@ class ScantxoutsetTest(BitcoinTestFramework):
         self.nodes[0].sendtoaddress("mxp7w7j8S1Aq6L8StS2PqVvtt4HGxXEvdy", 8.192)  # (m/1/1/1)
         self.nodes[0].sendtoaddress("mpQ8rokAhp1TAtJQR6F6TaUmjAWkAWYYBq", 16.384)  # (m/1/1/1500)
 
-
         self.generate(self.nodes[0], 1)
 
         self.log.info("Stop node, remove wallet, mine again some blocks...")
@@ -127,5 +128,6 @@ class ScantxoutsetTest(BitcoinTestFramework):
         # Check that second arg is needed for start
         assert_raises_rpc_error(-1, "scanobjects argument is required for the start action", self.nodes[0].scantxoutset, "start")
 
-if __name__ == '__main__':
+
+if __name__ == "__main__":
     ScantxoutsetTest().main()