minor tweaks

Author: crazyeng

wolframclient/serializers/wxfencoder/streaming.py

@@ -55,10 +55,10 @@ def _read_rest(self, data, size=-1):
         out_len = len(data)
         while out_len < size:
             chunk = self._reader.read(size - out_len)
-            if chunk == b"":
+            if not chunk:
                 raise EOFError("Not enough data to read.")
             yield chunk
-            out_len = out_len + len(chunk)
+            out_len += len(chunk)
 
 class ZipCompressedReader(object):
     """A buffer implementation reading zip compressed data from a source buffer and returning uncompressed data.
@@ -90,22 +90,22 @@ def read(self, size=-1):
         while True:
             # first step find try to find some data to uncompress.
             # sometimes some bytes are left over. We have to send them first to zlib.
-            if self._compressor.unconsumed_tail != b"":
+            if self._compressor.unconsumed_tail:
                 data_in = self._compressor.unconsumed_tail
             else:
                 # read more data from input reader. Read in chunk since we can't guess how
                 # big the inflated result is.
                 data_in = self._reader.read(chunk_size)
                 # no more data is available.
-                if data_in == b"":
+                if not data_in:
                     break
             # second step, decompress the new chunk
             if size > 0:
                 chunk = self._compressor.decompress(data_in, size - out_len)
             else:
                 chunk = self._compressor.decompress(data_in)
             # increment output len.
-            out_len = out_len + len(chunk)
+            out_len += len(chunk)
             # write to buffer
             yield chunk
             # check requested size against output length.