doc update
diff --git a/documentation/shortintro.rst b/documentation/shortintro.rst
index 6b0d81f..e08f737 100644
--- a/documentation/shortintro.rst
+++ b/documentation/shortintro.rst
@@ -5,25 +5,24 @@
Opening serial ports
====================
-Open port 0 at "9600,8,N,1", no timeout::
+Open port at "9600,8,N,1", no timeout::
>>> import serial
- >>> ser = serial.Serial(0) # open first serial port
+ >>> ser = serial.Serial('/dev/ttyUSB0') # open serial port
>>> print(ser.name) # check which port was really used
>>> ser.write(b"hello") # write a string
>>> ser.close() # close port
Open named port at "19200,8,N,1", 1s timeout::
- >>> ser = serial.Serial('/dev/ttyS1', 19200, timeout=1)
- >>> x = ser.read() # read one byte
- >>> s = ser.read(10) # read up to ten bytes (timeout)
- >>> line = ser.readline() # read a '\n' terminated line
- >>> ser.close()
+ >>> with serial.Serial('/dev/ttyS1', 19200, timeout=1) as ser:
+ ... x = ser.read() # read one byte
+ ... s = ser.read(10) # read up to ten bytes (timeout)
+ ... line = ser.readline() # read a '\n' terminated line
-Open second port at "38400,8,E,1", non blocking HW handshaking::
+Open port at "38400,8,E,1", non blocking HW handshaking::
- >>> ser = serial.Serial(1, 38400, timeout=0,
+ >>> ser = serial.Serial('COM3', 38400, timeout=0,
... parity=serial.PARITY_EVEN, rtscts=1)
>>> s = ser.read(100) # read up to one hundred bytes
... # or as much is in the buffer
@@ -35,14 +34,14 @@
>>> ser = serial.Serial()
>>> ser.baudrate = 19200
- >>> ser.port = 0
+ >>> ser.port = 'COM1'
>>> ser
Serial<id=0xa81c10, open=False>(port='COM1', baudrate=19200, bytesize=8, parity='N', stopbits=1, timeout=None, xonxoff=0, rtscts=0)
>>> ser.open()
- >>> ser.isOpen()
+ >>> ser.is_open
True
>>> ser.close()
- >>> ser.isOpen()
+ >>> ser.is_open
False
Readline