python树莓派运行代码报错
原文:https://blog.csdn.net/a497785609/article/details/78060029?utm_source=app&app_version=4.21.0&code=app_1562916241&uLinkId=usr1mkqgl919blen
#coding: utf8
import sys
import RPi.GPIO as GPIO
import time
import os
import tornado.ioloop
import tornado.web
import tornado.httpserver
import tornado.options
from tornado.options import define,options
#初始化?
def init():
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM)
#设置GPIO针脚电平输出
def SetPinStatus(pin,status):
GPIO.cleanup(int(pin))
GPIO.setup(int(pin),GPIO.OUT)
if(int(status)==0):
GPIO.output(int(pin),GPIO.LOW)
else:
GPIO.output(int(pin),GPIO.HIGH)
#路由处理
class IndexHandler(tornado.web.RequestHandler):
def get(self):
self.render("index.html")
def post(self):
init()
action=self.get_argument('action')
#设置GPIO针脚电平输出
if(action=="set-gpio-pin"):
pin = self.get_argument('pin')
status = self.get_argument('status')
SetPinStatus(pin,status)
self.write("true")
#执行shell脚本，如：关机，重启
elif(action=="run-shell-cmd"):
cmd = self.get_argument('cmd')
os.system(cmd)
if __name__ == '__main__':
#控制台输出响应结果，正式环境可以不开?
#tornado.options.parse_command_line()
settings={
"static_path":os.path.join(os.path.dirname(__file__),"static")
}
app = tornado.web.Application(
handlers=[
(r"/",IndexHandler),
(r"(apple-touch-icon\.png)",tornado.web.StaticFileHandler,dict(path=settings['static_path']))
],**settings)
http_server = tornado.httpserver.HTTPServer(app)
http_server.listen(8020)
tornado.ioloop.IOLoop.instance().start()
GPIO.cleanup()
报错:
Traceback (most recent call last):
File "/home/pi/gpio/gpio.py", line 26, in <module>
class IndexHandler(tornado.web.RequestHandler):
File "/home/pi/gpio/gpio.py", line 31, in IndexHandler
action=self.get_argument('action')
NameError: name 'self' is not defined
