I have come across the term "self" in a number of Python scripts and as a
beginner to the language I am wondering if it has any specific meaning. It
is usually used in the same manner as in this example by Steven D'Aprano.
class DefaultModelCar:
model = "Unknown"
BRAKE_COMMAND = "B"
FORWARD_COMMAND = "F"
REVERSE_COMMAND = "R"
ACCELERATE_COMMAND = "A"
TURN_LEFT_COMMAND = "TL"
TURN_RIGHT_COMMAND = "TR"
def send_command(self, command):
# Send a command to the model car.
# Put the code here to actually communicate with the car.
...
def forward(self):
# Drive forward.
if self.direction == "Reverse":
# Brake first, then move forward.
self.stop()
self.send_command(self.
FORWARD_COMMAND)
self.send_command(self.ACCELERATE_COMMAND)
self.direction = "Forward"
def reverse(self):
if self.direction == "Forward":
self.stop()
self.send_command(self.REVERSE_COMMAND)
self.send_command(self.ACCELERATE_COMMAND)
self.direction = "Reverse"
def stop(self):
self.send_command(self.BRAKE_COMMAND)
self.direction = "Stopped"
--
*Glenn Lester*
Software Tester
*Avant Systems Group***
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