3 files changed, 4 insertions, 4 deletions
diff --git a/qa/rpc-tests/test_framework/coverage.py b/qa/rpc-tests/test_framework/coverage.py
index 23fce61014..13b33869f5 100644
--- a/qa/rpc-tests/test_framework/coverage.py
+++ b/qa/rpc-tests/test_framework/coverage.py
@@ -50,7 +50,7 @@ class AuthServiceProxyWrapper(object):
         rpc_method = self.auth_service_proxy_instance._service_name
 
         if self.coverage_logfile:
-            with open(self.coverage_logfile, 'a+') as f:
+            with open(self.coverage_logfile, 'a+', encoding='utf8') as f:
                 f.write("%s\n" % rpc_method)
 
         return return_val
@@ -100,7 +100,7 @@ def write_all_rpc_commands(dirname, node):
         if line and not line.startswith('='):
             commands.add("%s\n" % line.split()[0])
 
-    with open(filename, 'w') as f:
+    with open(filename, 'w', encoding='utf8') as f:
         f.writelines(list(commands))
 
     return True
diff --git a/qa/rpc-tests/test_framework/netutil.py b/qa/rpc-tests/test_framework/netutil.py
index 573b06772d..b92a9f6e1c 100644
--- a/qa/rpc-tests/test_framework/netutil.py
+++ b/qa/rpc-tests/test_framework/netutil.py
@@ -58,7 +58,7 @@ def netstat(typ='tcp'):
     To get pid of all network process running on system, you must run this script
     as superuser
     '''
-    with open('/proc/net/'+typ,'r') as f:
+    with open('/proc/net/'+typ,'r',encoding='utf8') as f:
         content = f.readlines()
         content.pop(0)
     result = []
diff --git a/qa/rpc-tests/test_framework/util.py b/qa/rpc-tests/test_framework/util.py
index eee77f1a10..2f0d909a6e 100644
--- a/qa/rpc-tests/test_framework/util.py
+++ b/qa/rpc-tests/test_framework/util.py
@@ -161,7 +161,7 @@ def initialize_datadir(dirname, n):
     if not os.path.isdir(datadir):
         os.makedirs(datadir)
     rpc_u, rpc_p = rpc_auth_pair(n)
-    with open(os.path.join(datadir, "bitcoin.conf"), 'w') as f:
+    with open(os.path.join(datadir, "bitcoin.conf"), 'w', encoding='utf8') as f:
         f.write("regtest=1\n")
         f.write("rpcuser=" + rpc_u + "\n")
         f.write("rpcpassword=" + rpc_p + "\n")