tools: fix Python 3 issues in inspector_protocol

PR-URL: nodejs#29296
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
(cherry picked from commit 4662f67)

tools/compress_json.py

@@ -7,14 +7,16 @@
 
 try:
  xrange # Python 2
+ PY2 = True
 except NameError:
+ PY2 = False
  xrange = range # Python 3
 
 
 if __name__ == '__main__':
- fp = open(sys.argv[1])
- obj = json.load(fp)
- text = json.dumps(obj, separators=(',', ':'))
+ with open(sys.argv[1]) as fp:
+  obj = json.load(fp)
+ text = json.dumps(obj, separators=(',', ':')).encode('utf-8')
  data = zlib.compress(text, zlib.Z_BEST_COMPRESSION)
 
  # To make decompression a little easier, we prepend the compressed data
@@ -24,8 +26,8 @@
 
  step = 20
  slices = (data[i:i+step] for i in xrange(0, len(data), step))
- slices = [','.join(str(ord(c)) for c in s) for s in slices]
+ slices = [','.join(str(ord(c) if PY2 else c) for c in s) for s in slices]
  text = ',\n'.join(slices)
 
- fp = open(sys.argv[2], 'w')
- fp.write(text)
+ with open(sys.argv[2], 'w') as fp:
+  fp.write(text)