Explicitly specify encoding when opening text files in Python code

10 files changed, 20 insertions, 20 deletions

diff --git a/contrib/devtools/circular-dependencies.py b/contrib/devtools/circular-dependencies.py
index d544d5c371..abfa5ed5ae 100755
--- a/contrib/devtools/circular-dependencies.py
+++ b/contrib/devtools/circular-dependencies.py
@@ -37,7 +37,7 @@ for arg in sys.argv[1:]:
 # TODO: implement support for multiple include directories
 for arg in sorted(files.keys()):
     module = files[arg]
-    with open(arg, 'r') as f:
+    with open(arg, 'r', encoding="utf8") as f:
         for line in f:
             match = RE.match(line)
             if match:
diff --git a/contrib/devtools/clang-format-diff.py b/contrib/devtools/clang-format-diff.py
index 5402870fba..77e845a9b4 100755
--- a/contrib/devtools/clang-format-diff.py
+++ b/contrib/devtools/clang-format-diff.py
@@ -152,7 +152,7 @@ def main():
       sys.exit(p.returncode)
 
     if not args.i:
-      with open(filename) as f:
+      with open(filename, encoding="utf8") as f:
         code = f.readlines()
       formatted_code = io.StringIO(stdout).readlines()
       diff = difflib.unified_diff(code, formatted_code,
diff --git a/contrib/devtools/copyright_header.py b/contrib/devtools/copyright_header.py
index 82d3c19683..da7d74bdc4 100755
--- a/contrib/devtools/copyright_header.py
+++ b/contrib/devtools/copyright_header.py
@@ -146,7 +146,7 @@ def file_has_without_c_style_copyright_for_holder(contents, holder_name):
 ################################################################################
 
 def read_file(filename):
-    return open(os.path.abspath(filename), 'r').read()
+    return open(os.path.abspath(filename), 'r', encoding="utf8").read()
 
 def gather_file_info(filename):
     info = {}
@@ -325,13 +325,13 @@ def get_most_recent_git_change_year(filename):
 ################################################################################
 
 def read_file_lines(filename):
-    f = open(os.path.abspath(filename), 'r')
+    f = open(os.path.abspath(filename), 'r', encoding="utf8")
     file_lines = f.readlines()
     f.close()
     return file_lines
 
 def write_file_lines(filename, file_lines):
-    f = open(os.path.abspath(filename), 'w')
+    f = open(os.path.abspath(filename), 'w', encoding="utf8")
     f.write(''.join(file_lines))
     f.close()
 
diff --git a/contrib/devtools/github-merge.py b/contrib/devtools/github-merge.py
index 187ef75fb7..4e90f85f50 100755
--- a/contrib/devtools/github-merge.py
+++ b/contrib/devtools/github-merge.py
@@ -191,7 +191,7 @@ def main():
     merge_branch = 'pull/'+pull+'/merge'
     local_merge_branch = 'pull/'+pull+'/local-merge'
 
-    devnull = open(os.devnull,'w')
+    devnull = open(os.devnull, 'w', encoding="utf8")
     try:
         subprocess.check_call([GIT,'checkout','-q',branch])
     except subprocess.CalledProcessError:
diff --git a/contrib/devtools/test-security-check.py b/contrib/devtools/test-security-check.py
index 307e057736..9b6d6bf665 100755
--- a/contrib/devtools/test-security-check.py
+++ b/contrib/devtools/test-security-check.py
@@ -9,7 +9,7 @@ import subprocess
 import unittest
 
 def write_testcode(filename):
-    with open(filename, 'w') as f:
+    with open(filename, 'w', encoding="utf8") as f:
         f.write('''
     #include <stdio.h>
     int main()
diff --git a/contrib/filter-lcov.py b/contrib/filter-lcov.py
index 299377d691..df1db76e92 100755
--- a/contrib/filter-lcov.py
+++ b/contrib/filter-lcov.py
@@ -13,8 +13,8 @@ pattern = args.pattern
 outfile = args.outfile
 
 in_remove = False
-with open(tracefile, 'r') as f:
-    with open(outfile, 'w') as wf:
+with open(tracefile, 'r', encoding="utf8") as f:
+    with open(outfile, 'w', encoding="utf8") as wf:
         for line in f:
             for p in pattern:
                 if line.startswith("SF:") and p in line:
diff --git a/contrib/linearize/linearize-data.py b/contrib/linearize/linearize-data.py
index f8aea27342..b501388fd2 100755
--- a/contrib/linearize/linearize-data.py
+++ b/contrib/linearize/linearize-data.py
@@ -75,7 +75,7 @@ def get_blk_dt(blk_hdr):
 # When getting the list of block hashes, undo any byte reversals.
 def get_block_hashes(settings):
     blkindex = []
-    f = open(settings['hashlist'], "r")
+    f = open(settings['hashlist'], "r", encoding="utf8")
     for line in f:
         line = line.rstrip()
         if settings['rev_hash_bytes'] == 'true':
@@ -261,7 +261,7 @@ if __name__ == '__main__':
         print("Usage: linearize-data.py CONFIG-FILE")
         sys.exit(1)
 
-    f = open(sys.argv[1])
+    f = open(sys.argv[1], encoding="utf8")
     for line in f:
         # skip comment lines
         m = re.search('^\s*#', line)
diff --git a/contrib/linearize/linearize-hashes.py b/contrib/linearize/linearize-hashes.py
index 8e1266ae0b..bfd2171947 100755
--- a/contrib/linearize/linearize-hashes.py
+++ b/contrib/linearize/linearize-hashes.py
@@ -96,7 +96,7 @@ def get_block_hashes(settings, max_blocks_per_call=10000):
 
 def get_rpc_cookie():
     # Open the cookie file
-    with open(os.path.join(os.path.expanduser(settings['datadir']), '.cookie'), 'r') as f:
+    with open(os.path.join(os.path.expanduser(settings['datadir']), '.cookie'), 'r', encoding="ascii") as f:
         combined = f.readline()
         combined_split = combined.split(":")
         settings['rpcuser'] = combined_split[0]
@@ -107,7 +107,7 @@ if __name__ == '__main__':
         print("Usage: linearize-hashes.py CONFIG-FILE")
         sys.exit(1)
 
-    f = open(sys.argv[1])
+    f = open(sys.argv[1], encoding="utf8")
     for line in f:
         # skip comment lines
         m = re.search('^\s*#', line)
diff --git a/contrib/seeds/generate-seeds.py b/contrib/seeds/generate-seeds.py
index ace7d3534f..fe7cd1d597 100755
--- a/contrib/seeds/generate-seeds.py
+++ b/contrib/seeds/generate-seeds.py
@@ -127,10 +127,10 @@ def main():
     g.write(' * Each line contains a 16-byte IPv6 address and a port.\n')
     g.write(' * IPv4 as well as onion addresses are wrapped inside an IPv6 address accordingly.\n')
     g.write(' */\n')
-    with open(os.path.join(indir,'nodes_main.txt'),'r') as f:
+    with open(os.path.join(indir,'nodes_main.txt'), 'r', encoding="utf8") as f:
         process_nodes(g, f, 'pnSeed6_main', 8333)
     g.write('\n')
-    with open(os.path.join(indir,'nodes_test.txt'),'r') as f:
+    with open(os.path.join(indir,'nodes_test.txt'), 'r', encoding="utf8") as f:
         process_nodes(g, f, 'pnSeed6_test', 18333)
     g.write('#endif // BITCOIN_CHAINPARAMSSEEDS_H\n')
 
diff --git a/contrib/verify-commits/verify-commits.py b/contrib/verify-commits/verify-commits.py
index 80f0aa0bf1..a9e4977715 100755
--- a/contrib/verify-commits/verify-commits.py
+++ b/contrib/verify-commits/verify-commits.py
@@ -76,11 +76,11 @@ def main():
     # get directory of this program and read data files
     dirname = os.path.dirname(os.path.abspath(__file__))
     print("Using verify-commits data from " + dirname)
-    verified_root = open(dirname + "/trusted-git-root", "r").read().splitlines()[0]
-    verified_sha512_root = open(dirname + "/trusted-sha512-root-commit", "r").read().splitlines()[0]
-    revsig_allowed = open(dirname + "/allow-revsig-commits", "r").read().splitlines()
-    unclean_merge_allowed = open(dirname + "/allow-unclean-merge-commits", "r").read().splitlines()
-    incorrect_sha512_allowed = open(dirname + "/allow-incorrect-sha512-commits", "r").read().splitlines()
+    verified_root = open(dirname + "/trusted-git-root", "r", encoding="utf8").read().splitlines()[0]
+    verified_sha512_root = open(dirname + "/trusted-sha512-root-commit", "r", encoding="utf8").read().splitlines()[0]
+    revsig_allowed = open(dirname + "/allow-revsig-commits", "r", encoding="utf-8").read().splitlines()
+    unclean_merge_allowed = open(dirname + "/allow-unclean-merge-commits", "r", encoding="utf-8").read().splitlines()
+    incorrect_sha512_allowed = open(dirname + "/allow-incorrect-sha512-commits", "r", encoding="utf-8").read().splitlines()
 
     # Set commit and branch and set variables
     current_commit = args.commit