diff --git a/contrib/devtools/chainparams/generate_chainparams_constants.py b/contrib/devtools/chainparams/generate_chainparams_constants.py
--- a/contrib/devtools/chainparams/generate_chainparams_constants.py
+++ b/contrib/devtools/chainparams/generate_chainparams_constants.py
@@ -36,7 +36,8 @@
 
 def main():
     if len(sys.argv) != 2:
-        print('Usage: {} <dir_with_chainparams_txt>'.format(sys.argv[0]), file=sys.stderr)
+        print('Usage: {} <dir_with_chainparams_txt>'.format(
+            sys.argv[0]), file=sys.stderr)
         sys.exit(1)
 
     indir = sys.argv[1]
diff --git a/contrib/linearize/linearize-hashes.py b/contrib/linearize/linearize-hashes.py
--- a/contrib/linearize/linearize-hashes.py
+++ b/contrib/linearize/linearize-hashes.py
@@ -76,8 +76,8 @@
 
     height = settings['min_height']
     while height < settings['max_height'] + 1:
-        num_blocks = min(settings['max_height'] +
-                         1 - height, max_blocks_per_call)
+        num_blocks = min(settings['max_height']
+                         + 1 - height, max_blocks_per_call)
         batch = []
         for x in range(num_blocks):
             batch.append(rpc.build_request(x, 'getblockhash', [height + x]))
@@ -146,7 +146,8 @@
     if 'datadir' in settings and not use_userpass:
         use_datadir = True
     if not use_userpass and not use_datadir:
-        print("Missing datadir or username and/or password in cfg file", file=sys.stderr)
+        print("Missing datadir or username and/or password in cfg file",
+              file=sys.stderr)
         sys.exit(1)
 
     settings['port'] = int(settings['port'])
diff --git a/test/functional/combine_logs.py b/test/functional/combine_logs.py
--- a/test/functional/combine_logs.py
+++ b/test/functional/combine_logs.py
@@ -89,7 +89,8 @@
             # Flush the final event
             yield LogEvent(timestamp=timestamp, source=source, event=event.rstrip())
     except FileNotFoundError:
-        print("File {} could not be opened. Continuing without it.".format(logfile), file=sys.stderr)
+        print("File {} could not be opened. Continuing without it.".format(
+            logfile), file=sys.stderr)
 
 
 def print_logs(log_events, color=False, html=False):
diff --git a/test/lint/check-rpc-mappings.py b/test/lint/check-rpc-mappings.py
--- a/test/lint/check-rpc-mappings.py
+++ b/test/lint/check-rpc-mappings.py
@@ -134,7 +134,8 @@
             errors += 1
             continue
         if argname not in rargnames:
-            print('ERROR: {} argument {} is named {} in vRPCConvertParams but {} in dispatch table'.format(cmdname, argidx, argname, rargnames), file=sys.stderr)
+            print('ERROR: {} argument {} is named {} in vRPCConvertParams but {} in dispatch table'.format(
+                cmdname, argidx, argname, rargnames), file=sys.stderr)
             errors += 1
 
     # Check for conflicts in vRPCConvertParams conversion