Explicitly specify encoding when opening text files in Python code

1 files changed, 4 insertions, 4 deletions

diff --git a/test/util/bitcoin-util-test.py b/test/util/bitcoin-util-test.py
index 30bd13d0dc..16371a6234 100755
--- a/test/util/bitcoin-util-test.py
+++ b/test/util/bitcoin-util-test.py
@@ -28,7 +28,7 @@ import sys
 def main():
     config = configparser.ConfigParser()
     config.optionxform = str
-    config.readfp(open(os.path.join(os.path.dirname(__file__), "../config.ini")))
+    config.readfp(open(os.path.join(os.path.dirname(__file__), "../config.ini"), encoding="utf8"))
     env_conf = dict(config.items('environment'))
 
     parser = argparse.ArgumentParser(description=__doc__)
@@ -49,7 +49,7 @@ def main():
 def bctester(testDir, input_basename, buildenv):
     """ Loads and parses the input file, runs all tests and reports results"""
     input_filename = os.path.join(testDir, input_basename)
-    raw_data = open(input_filename).read()
+    raw_data = open(input_filename, encoding="utf8").read()
     input_data = json.loads(raw_data)
 
     failed_testcases = []
@@ -86,7 +86,7 @@ def bctest(testDir, testObj, buildenv):
     inputData = None
     if "input" in testObj:
         filename = os.path.join(testDir, testObj["input"])
-        inputData = open(filename).read()
+        inputData = open(filename, encoding="utf8").read()
         stdinCfg = subprocess.PIPE
 
     # Read the expected output data (if there is any)
@@ -97,7 +97,7 @@ def bctest(testDir, testObj, buildenv):
         outputFn = testObj['output_cmp']
         outputType = os.path.splitext(outputFn)[1][1:]  # output type from file extension (determines how to compare)
         try:
-            outputData = open(os.path.join(testDir, outputFn)).read()
+            outputData = open(os.path.join(testDir, outputFn), encoding="utf8").read()
         except:
             logging.error("Output file " + outputFn + " can not be opened")
             raise