VXI11 protocol performance enhancement

pyvisa · Jul 20, 2015 · 3fa3917 · 3fa3917
1 parent ef0fc09
commit 3fa3917
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/pyvisa-py/tcpip.py b/pyvisa-py/tcpip.py
@@ -100,7 +100,7 @@ def read(self, count):
  flags = vxi11.OP_FLAG_TERMCHAR_SET
  term_char = str(term_char).encode('utf-8')[0]
 
- read_data = b''
+ read_data = bytearray()
 
  end_reason = vxi11.RX_END | vxi11.RX_CHR
 
@@ -115,7 +115,7 @@ def read(self, count):
  if error:
  return read_data, StatusCode.error_io
 
- read_data += data
+ read_data.extend(data)
  count -= len(data)
 
  if count <= 0:
@@ -124,7 +124,7 @@ def read(self, count):
 
  chunk_length = min(count, chunk_length)
 
- return read_data, status
+ return bytes(read_data), status
 
  def write(self, data):
  """Writes data to device or interface synchronously.