SyntaxError: unexpected EOF while parsing - tn.close() - while-loop

Need to write some code for work that telnets into a device, runs a command and exits telnet
I Keep getting error
file "python", line 54
tn.close()
^
SyntaxError: unexpected EOF while parsing
What am I doing wrong, new to coding
Cheers
import time
import telnetlib
tn_username = "xxxx"
tn_password = "xxxxxxx"
#Globals:
CACHE_DATA = {}
SNIPPET_NAME = 'xxxxxx: xxxxxx'
FAILED_COUNT = 0
COLLECTION_PROBLEM = False
TELNET_PORT = 23
TELNET_TIMEOUT = 2
FAILED_ITEMS = []
self.logger.ui_debug('************** %s: Starting *******************' % (SNIPPET_NAME))
#start timer
start_time = time.time()
try:
#connect to telnet
tn = telnetlib.Telnet
tn.read_until("login: ")
tn.write(tn_username + "\n")
tn.read_until("Password: ")
tn.write(tn_password + "\n")
for obj_oid in result_handler.oids:
##obj_name = result_handler[obj_oid]['name']
try:
#run oid as CLI call from result_handler
tn.write(obj_oid+"\r")
rawdata = tn.read_until("Welcome to the Tesira Text Protocol Server...", TELNET_TIMEOUT)
if rawdata:
result_handler[obj_oid] = [(0,"Collection Ok")]
CACHE_DATA[obj_oid] = rawdata.strip()
else:
FAILED_COUNT += 1
result_handler[obj_oid] = [(0,"Failed: No data found")]
FAILED_ITEMS.append(obj_oid)
except:
FAILED_ITEMS.append(obj_oid)
result_handler[obj_oid] = [(0,'Failed: Collection: %s' % obj_oid)]
FAILED_COUNT +=1
#save job time for perf graph
CACHE_DATA['biamp'] = round(time.time() - start_time,4)
#gracefully quit the telnet session so as to not leave any defunct processes on the host device.
tn.write("bye\r")
tn.close()

Related

Pybullet on colab, cannot connect X server

I am using rl-baselines-zoo 3 to run ddpg with my custom env on colab. After I used show video function in that zoo repo, it said it cannot connect to the server. It works fine on other built-in envs, so I guess it's my env problem. please, need some help...
I set every thing from zoo's tutorials
Traceback:
pybullet build time: Jul 12 2021 20:46:20
/usr/local/lib/python3.7/dist-packages/gym/logger.py:30: UserWarning:
WARN: Box bound precision lowered by casting to float32
startThreads creating 1 threads.
starting thread 0
started thread 0
argc=2
argv[0] = --unused
argv[1] = --start_demo_name=Physics Server
ExampleBrowserThreadFunc started
X11 functions dynamically loaded using dlopen/dlsym OK!
X11 functions dynamically loaded using dlopen/dlsym OK!
Creating context
Created GL 3.3 context
Direct GLX rendering context obtained
Making context current
GL_VENDOR=VMware, Inc.
GL_RENDERER=llvmpipe (LLVM 10.0.0, 256 bits)
GL_VERSION=3.3 (Core Profile) Mesa 20.0.8
GL_SHADING_LANGUAGE_VERSION=3.30
pthread_getconcurrency()=0
Version = 3.3 (Core Profile) Mesa 20.0.8
Vendor = VMware, Inc.
Renderer = llvmpipe (LLVM 10.0.0, 256 bits)
b3Printf: Selected demo: Physics Server
startThreads creating 1 threads.
starting thread 0
started thread 0
MotionThreadFunc thread started
ven = VMware, Inc.
ven = VMware, Inc.
Wrapping the env in a VecTransposeImage.
tcmalloc: large alloc 3276800000 bytes == 0x556b03bda000 # 0x7f7cad04a001 0x7f7caa3f554f 0x7f7caa445b58 0x7f7caa449b17 0x7f7caa4e8203 0x556a81194d54 0x556a81194a50 0x556a81209105 0x556a812037ad 0x556a81196c9f 0x556a811d7d79 0x556a811d4cc4 0x556a81196ea1 0x556a81205bb5 0x556a8119630a 0x556a812087f0 0x556a812037ad 0x556a811963ea 0x556a8120460e 0x556a812034ae 0x556a811963ea 0x556a8120532a 0x556a812034ae 0x556a812031b3 0x556a81201660 0x556a81194b59 0x556a81194a50 0x556a81208453 0x556a812034ae 0x556a811963ea 0x556a812043b5
tcmalloc: large alloc 3276800000 bytes == 0x556bc78da000 # 0x7f7cad04a001 0x7f7caa3f554f 0x7f7caa445b58 0x7f7caa449b17 0x7f7caa4e8203 0x556a81194d54 0x556a81194a50 0x556a81209105 0x556a812037ad 0x556a81196c9f 0x556a811d7d79 0x556a811d4cc4 0x556a81196ea1 0x556a81205bb5 0x556a8119630a 0x556a812087f0 0x556a812037ad 0x556a811963ea 0x556a8120460e 0x556a812034ae 0x556a811963ea 0x556a8120532a 0x556a812034ae 0x556a812031b3 0x556a81201660 0x556a81194b59 0x556a81194a50 0x556a81208453 0x556a812034ae 0x556a811963ea 0x556a812043b5
/content/gdrive/My Drive/hsr/rl-baselines3-zoo/logs/ddpg/FoodHuntingHSR-v0_3/videos/final-model-ddpg-FoodHuntingHSR-v0-step-0-to-step-200.mp4
/usr/local/lib/python3.7/dist-packages/gym/logger.py:30: UserWarning:
WARN: Tried to pass invalid video frame, marking as broken: Your frame has data type float32, but we require uint8 (i.e. RGB values from 0-255).
Saving video to /content/gdrive/My Drive/hsr/rl-baselines3-zoo/logs/ddpg/FoodHuntingHSR-v0_3/videos/final-model-ddpg-FoodHuntingHSR-v0-step-0-to-step-200.mp4
numActiveThreads = 0
stopping threads
destroy semaphore
semaphore destroyed
Thread with taskId 0 exiting
Thread TERMINATED
destroy main semaphore
main semaphore destroyed
finished
numActiveThreads = 0
btShutDownExampleBrowser stopping threads
Thread with taskId 0 exiting
Thread TERMINATED
destroy semaphore
semaphore destroyed
destroy main semaphore
main semaphore destroyed
Exception ignored in: <function VecVideoRecorder.__del__ at 0x7f7c2b5cc200>
Traceback (most recent call last):
File "/content/gdrive/My Drive/hsr/stable-baselines3/stable_baselines3/common/vec_env/vec_video_recorder.py", line 114, in __del__
File "/content/gdrive/My Drive/hsr/stable-baselines3/stable_baselines3/common/vec_env/vec_video_recorder.py", line 110, in close
File "/content/gdrive/My Drive/hsr/stable-baselines3/stable_baselines3/common/vec_env/base_vec_env.py", line 278, in close
File "/content/gdrive/My Drive/hsr/stable-baselines3/stable_baselines3/common/vec_env/dummy_vec_env.py", line 67, in close
File "/content/gdrive/My Drive/hsr/stable-baselines3/stable_baselines3/common/monitor.py", line 113, in close
File "/usr/local/lib/python3.7/dist-packages/gym/core.py", line 243, in close
File "/usr/local/lib/python3.7/dist-packages/gym/core.py", line 243, in close
File "/content/gdrive/My Drive/hsr/PyLIS/gym-foodhunting/gym_foodhunting/foodhunting/gym_foodhunting.py", line 538, in close
pybullet.error: Not connected to physics server
class FoodHuntingEnv(gym.Env):
metadata = {'render.modes': ['human','rgb_array']}
GRAVITY = -10.0
BULLET_STEPS = 120 # p.setTimeStep(1.0 / 240.0), so 1 gym step == 0.5 sec.
def __init__(self, render=False, robot_model=R2D2, max_steps=500, num_foods=3, num_fakes=0, object_size=1.0, object_radius_scale=1.0, object_radius_offset=1.0, object_angle_scale=1.0):
"""Initialize environment.
"""
### gym variables
self.observation_space = robot_model.getObservationSpace() # classmethod
self.action_space = robot_model.getActionSpace() # classmethod
self.reward_range = (-1.0, 1.0)
self.seed()
### pybullet settings
self.ifrender = render
self.physicsClient = p.connect(p.GUI if self.ifrender else p.DIRECT)
p.setAdditionalSearchPath(pybullet_data.getDataPath())
### env variables
self.robot_model = robot_model
self.max_steps = max_steps
self.num_foods = num_foods
self.num_fakes = num_fakes
self.object_size = object_size
self.object_radius_scale = object_radius_scale
self.object_radius_offset = object_radius_offset
self.object_angle_scale = object_angle_scale
self.plane_id = None
self.robot = None
self.object_ids = []
### episode variables
self.steps = 0
self.episode_rewards = 0.0
def close(self):
"""Close environment.
"""
p.disconnect(self.physicsClient)
def reset(self):
"""Reset environment.
"""
self.steps = 0
self.episode_rewards = 0
p.resetSimulation()
# p.setTimeStep(1.0 / 240.0)
p.setGravity(0, 0, self.GRAVITY)
self.plane_id = p.loadURDF('plane.urdf')
self.robot = self.robot_model()
self.object_ids = []
for i, (pos, orn) in enumerate(self._generateObjectPositions(num=(self.num_foods+self.num_fakes), radius_scale=self.object_radius_scale, radius_offset=self.object_radius_offset, angle_scale=self.object_angle_scale)):
if i < self.num_foods:
urdfPath = 'food_sphere.urdf'
else:
urdfPath = 'food_cube.urdf'
object_id = p.loadURDF(urdfPath, pos, orn, globalScaling=self.object_size)
self.object_ids.append(object_id)
for i in range(self.BULLET_STEPS):
p.stepSimulation()
obs = self._getObservation()
#print('reset laile')
#self.robot.printAllJointInfo()
return obs
def step(self, action):
"""Apply action to environment, then return observation and reward.
"""
self.steps += 1
self.robot.setAction(action)
reward = -1.0 * float(self.num_foods) / float(self.max_steps) # so agent needs to eat foods quickly
for i in range(self.BULLET_STEPS):
p.stepSimulation()
reward += self._getReward()
self.episode_rewards += reward
obs = self._getObservation()
done = self._isDone()
pos, orn = self.robot.getPositionAndOrientation()
info = { 'steps': self.steps, 'pos': pos, 'orn': orn }
if done:
#print('Done laile')
info['episode'] = { 'r': self.episode_rewards, 'l': self.steps }
# print(self.episode_rewards, self.steps)
#print(self.robot.getBaseRollPosition(), self.robot.getTorsoLiftPosition(), self.robot.getHeadPosition(), self.robot.getArmPosition(), self.robot.getWristPosition(), self.robot.getGripperPosition()) # for HSR debug
#print(self.robot.getHeadPosition(), self.robot.getGripperPosition()) # for R2D2 debug
return obs, reward, done, info
def render(self, mode='human', close=False):
"""This is a dummy function. This environment cannot control rendering timing.
"""
if mode != 'rgb_array':
return np.array([])
return self._getObservation()
def seed(self, seed=None):
"""Set random seed.
"""
self.np_random, seed = seeding.np_random(seed)
return [seed]
def _getReward(self):
"""Detect contact points and return reward.
"""
reward = 0
contacted_object_ids = [ object_id for object_id in self.object_ids if self.robot.isContact(object_id) ]
for object_id in contacted_object_ids:
reward += 1 if self._isFood(object_id) else -1
p.removeBody(object_id)
self.object_ids.remove(object_id)
return reward
def _getObservation(self):
"""Get observation.
"""
obs = self.robot.getObservation()
return obs
def _isFood(self, object_id):
"""Check if object_id is a food.
"""
baseLink, urdfPath = p.getBodyInfo(object_id)
return urdfPath == b'food_sphere.urdf' # otherwise, fake
def _isDone(self):
"""Check if episode is done.
"""
#print(self.object_ids,'self')
available_object_ids = [ object_id for object_id in self.object_ids if self._isFood(object_id) ]
#print(available_object_ids)
return self.steps >= self.max_steps or len(available_object_ids) <= 0
def _generateObjectPositions(self, num=1, retry=100, radius_scale=1.0, radius_offset=1.0, angle_scale=1.0, angle_offset=0.5*np.pi, z=1.5, near_distance=0.5):
"""Generate food positions randomly.
"""
def genPos():
r = radius_scale * self.np_random.rand() + radius_offset
a = -np.pi * angle_scale + angle_offset
b = np.pi * angle_scale + angle_offset
ang = (b - a) * self.np_random.rand() + a
return np.array([r * np.sin(ang), r * np.cos(ang), z])
def isNear(pos, poss):
for p, o in poss:
if np.linalg.norm(p - pos) < near_distance:
return True
return False
def genPosRetry(poss):
for i in range(retry):
pos = genPos()
if not isNear(pos, poss):
return pos
return genPos()
poss = []
for i in range(num):
pos = genPosRetry(poss)
orn = p.getQuaternionFromEuler([0.0, 0.0, 2.0*np.pi*self.np_random.rand()])
poss.append((pos, orn))
return poss

Getting flow infos from switch and copy the info in csv file (Ryu controller)

Hope you help me, I want to get flow info from switch and that by sending a request every 10s and the switch reply with the info but I get the following error when the controller receive the reply by using a flow request reply handler The error is occuring because of flow matching 'eth_type'
CollectTrainingStatsApp: Exception occurred during handler processing. Backtrace from offending handler [_flow_stats_reply_handler] servicing event [EventOFPFlowStatsReply] follows.
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/ryu/base/app_manager.py", line 290, in _event_loop
handler(ev)
File "/home/guenfaf/Documents/Training ryu/data_to_csv/data_to_csv.py", line 59, in _flow_stats_reply_handler
for stat in sorted([flow for flow in body if (flow.priority == 1) ], key=lambda flow:
File "/home/guenfaf/Documents/Training ryu/data_to_csv/data_to_csv.py", line 60, in <lambda>
(flow.match['eth_type'],flow.match['ipv4_src'],flow.match['ipv4_dst'],flow.match['ip_proto'])):
File "/usr/local/lib/python2.7/dist-packages/ryu/ofproto/ofproto_v1_3_parser.py", line 904, in __getitem__
return dict(self._fields2)[key]
KeyError: 'eth_type'
Here is my code :
from ryu.app import simple_switch_13
from ryu.controller import ofp_event
from ryu.controller.handler import MAIN_DISPATCHER, DEAD_DISPATCHER
from ryu.controller.handler import set_ev_cls
from ryu.lib import hub
from time import time
# class CollectTrainingStatsApp(simple_switch_13.SimpleSwitch13):
class CollectTrainingStatsApp(simple_switch_13.SimpleSwitch13):
def __init__(self, *args, **kwargs):
super(CollectTrainingStatsApp, self).__init__(*args, **kwargs)
self.datapaths = {}
self.monitor_thread = hub.spawn(self.monitor)
file0 = open("FlowStatsfile.csv","w")
file0.write('datapath_id,flow_id,ip_src,tp_src,ip_dst,tp_dst,ip_proto,flow_duration_sec,flow_duration_nsec,idle_timeout,hard_timeout,flags,packet_count,byte_count,packet_count_per_second,packet_count_per_nsecond,byte_count_per_second,byte_count_per_nsecond,label\n')
file0.close()
#Asynchronous message
#set_ev_cls(ofp_event.EventOFPStateChange,[MAIN_DISPATCHER, DEAD_DISPATCHER])
def state_change_handler(self, ev):
datapath = ev.datapath
if ev.state == MAIN_DISPATCHER:
if datapath.id not in self.datapaths:
self.logger.debug('register datapath: %016x', datapath.id)
self.datapaths[datapath.id] = datapath
elif ev.state == DEAD_DISPATCHER:
if datapath.id in self.datapaths:
self.logger.debug('unregister datapath: %016x', datapath.id)
del self.datapaths[datapath.id]
def monitor(self):
while True:
for dp in self.datapaths.values():
self.request_stats(dp)
hub.sleep(10)
def request_stats(self, datapath):
self.logger.debug('send stats request: %016x', datapath.id)
parser = datapath.ofproto_parser
req = parser.OFPFlowStatsRequest(datapath)
datapath.send_msg(req)
#set_ev_cls(ofp_event.EventOFPFlowStatsReply, MAIN_DISPATCHER)
def _flow_stats_reply_handler(self, ev):
#timestamp = time.time()
tp_src = 0
tp_dst = 0
file0 = open("FlowStatsfile.csv","a+")
body = ev.msg.body
for stat in sorted([flow for flow in body if (flow.priority == 1) ], key=lambda flow:
(flow.match['eth_type'],flow.match['ipv4_src'],flow.match['ipv4_dst'],flow.match['ip_proto'])):
ip_src = stat.match['ipv4_src']
ip_dst = stat.match['ipv4_dst']
ip_proto = stat.match['ip_proto']
if stat.match['ip_proto'] == 1:
icmp_code = stat.match['icmpv4_code']
icmp_type = stat.match['icmpv4_type']
elif stat.match['ip_proto'] == 6:
tp_src = stat.match['tcp_src']
tp_dst = stat.match['tcp_dst']
elif stat.match['ip_proto'] == 17:
tp_src = stat.match['udp_src']
tp_dst = stat.match['udp_dst']
flow_id = str(ip_src) + str(tp_src) + str(ip_dst) + str(tp_dst) + str(ip_proto)
try:
packet_count_per_second = stat.packet_count/stat.duration_sec
packet_count_per_nsecond = stat.packet_count/stat.duration_nsec
except:
packet_count_per_second = 0
packet_count_per_nsecond = 0
try:
byte_count_per_second = stat.byte_count/stat.duration_sec
byte_count_per_nsecond = stat.byte_count/stat.duration_nsec
except:
byte_count_per_second = 0
byte_count_per_nsecond = 0
file0.write("{},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{}\n"
.format(ev.msg.datapath.id, flow_id, ip_src, tp_src,ip_dst, tp_dst,
stat.match['ip_proto'],
stat.duration_sec, stat.duration_nsec,
stat.idle_timeout, stat.hard_timeout,
stat.flags, stat.packet_count,stat.byte_count,
packet_count_per_second,packet_count_per_nsecond,
byte_count_per_second,byte_count_per_nsecond,0))
file0.close()

Trying to take pictures with Coral camera with Coral edgeTPU dev board but it is really slow

To start with, I am not a developer, but a mere automation engineer that have worked a bit with coding in Java, python, C#, C++ and C.
I am trying to make a prototype that take pictures and stores them using a digital pin on the board. Atm I can take pictures using a switch, but it is really slow(around 3 seconds pr image).
My complete system is going to be like this:
A product passes by on a conveyor and a photo cell triggers the board to take an image and store it. If an operator removes a product(because of bad quality) the image is stored in a different folder.
I started with the snapshot function shipped with Mendel and have tried to get rid off the overhead, but the Gstream and pipeline-stuff confuses me a lot.
If someone could help me with how to understand the supplied code, or how to write a minimalistic solution to take an image i would be grateful :)
I have tried to understand and use project-teachable and examples-camera from Google coral https://github.com/google-coral, but with no luck. I have had the best luck with the snapshot tool that uses snapshot.py that are referenced here https://coral.withgoogle.com/docs/camera/datasheet/#snapshot-tool
from periphery import GPIO
import time
import argparse
import contextlib
import fcntl
import os
import select
import sys
import termios
import threading
import gi
gi.require_version('Gst', '1.0')
gi.require_version('GstBase', '1.0')
from functools import partial
from gi.repository import GLib, GObject, Gst, GstBase
from PIL import Image
GObject.threads_init()
Gst.init(None)
WIDTH = 2592
HEIGHT = 1944
FILENAME_PREFIX = 'img'
FILENAME_SUFFIX = '.png'
AF_SYSFS_NODE = '/sys/module/ov5645_camera_mipi_v2/parameters/ov5645_af'
CAMERA_INIT_QUERY_SYSFS_NODE = '/sys/module/ov5645_camera_mipi_v2/parameters/ov5645_initialized'
HDMI_SYSFS_NODE = '/sys/class/drm/card0/card0-HDMI-A-1/status'
# No of initial frames to throw away before camera has stabilized
SCRAP_FRAMES = 1
SRC_WIDTH = 2592
SRC_HEIGHT = 1944
SRC_RATE = '15/1'
SRC_ELEMENT = 'v4l2src'
SINK_WIDTH = 2592
SINK_HEIGHT = 1944
SINK_ELEMENT = ('appsink name=appsink sync=false emit-signals=true '
'max-buffers=1 drop=true')
SCREEN_SINK = 'glimagesink sync=false'
FAKE_SINK = 'fakesink sync=false'
SRC_CAPS = 'video/x-raw,format=YUY2,width={width},height={height},framerate={rate}'
SINK_CAPS = 'video/x-raw,format=RGB,width={width},height={height}'
LEAKY_Q = 'queue max-size-buffers=1 leaky=downstream'
PIPELINE = '''
{src_element} ! {src_caps} ! {leaky_q} ! tee name=t
t. ! {leaky_q} ! {screen_sink}
t. ! {leaky_q} ! videoconvert ! {sink_caps} ! {sink_element}
'''
def on_bus_message(bus, message, loop):
t = message.type
if t == Gst.MessageType.EOS:
loop.quit()
elif t == Gst.MessageType.WARNING:
err, debug = message.parse_warning()
sys.stderr.write('Warning: %s: %s\n' % (err, debug))
elif t == Gst.MessageType.ERROR:
err, debug = message.parse_error()
sys.stderr.write('Error: %s: %s\n' % (err, debug))
loop.quit()
return True
def on_new_sample(sink, snapinfo):
if not snapinfo.save_frame():
# Throw away the frame
return Gst.FlowReturn.OK
sample = sink.emit('pull-sample')
buf = sample.get_buffer()
result, mapinfo = buf.map(Gst.MapFlags.READ)
if result:
imgfile = snapinfo.get_filename()
caps = sample.get_caps()
width = WIDTH
height = HEIGHT
img = Image.frombytes('RGB', (width, height), mapinfo.data, 'raw')
img.save(imgfile)
img.close()
buf.unmap(mapinfo)
return Gst.FlowReturn.OK
def run_pipeline(snapinfo):
src_caps = SRC_CAPS.format(width=SRC_WIDTH, height=SRC_HEIGHT, rate=SRC_RATE)
sink_caps = SINK_CAPS.format(width=SINK_WIDTH, height=SINK_HEIGHT)
screen_sink = FAKE_SINK
pipeline = PIPELINE.format(
leaky_q=LEAKY_Q,
src_element=SRC_ELEMENT,
src_caps=src_caps,
sink_caps=sink_caps,
sink_element=SINK_ELEMENT,
screen_sink=screen_sink)
pipeline = Gst.parse_launch(pipeline)
appsink = pipeline.get_by_name('appsink')
appsink.connect('new-sample', partial(on_new_sample, snapinfo=snapinfo))
loop = GObject.MainLoop()
# Set up a pipeline bus watch to catch errors.
bus = pipeline.get_bus()
bus.add_signal_watch()
bus.connect('message', on_bus_message, loop)
# Connect the loop to the snaphelper
snapinfo.connect_loop(loop)
# Run pipeline.
pipeline.set_state(Gst.State.PLAYING)
try:
loop.run()
except:
pass
# Clean up.
pipeline.set_state(Gst.State.NULL)
while GLib.MainContext.default().iteration(False):
pass
class SnapHelper:
def __init__(self, sysfs, prefix='img', oneshot=True, suffix='jpg'):
self.prefix = prefix
self.oneshot = oneshot
self.suffix = suffix
self.snap_it = oneshot
self.num = 0
self.scrapframes = SCRAP_FRAMES
self.sysfs = sysfs
def get_filename(self):
while True:
filename = self.prefix + str(self.num).zfill(4) + '.' + self.suffix
self.num = self.num + 1
if not os.path.exists(filename):
break
return filename
#def check_af(self):
#try:
# self.sysfs.seek(0)
# v = self.sysfs.read()
# if int(v) != 0x10:
# print('NO Focus')
#except:
# pass
# def refocus(self):
# try:#
# self.sysfs.write('1')
# self.sysfs.flush()
# except:
# pass
def save_frame(self):
# We always want to throw away the initial frames to let the
# camera stabilize. This seemed empirically to be the right number
# when running on desktop.
if self.scrapframes > 0:
self.scrapframes = self.scrapframes - 1
return False
if self.snap_it:
self.snap_it = False
retval = True
else:
retval = False
if self.oneshot:
self.loop.quit()
return retval
def connect_loop(self, loop):
self.loop = loop
def take_picture(snap):
start_time = int(round(time.time()))
run_pipeline(snap)
print(time.time()- start_time)
def main():
button = GPIO(138, "in")
last_state = False
with open(AF_SYSFS_NODE, 'w+') as sysfs:
snap = SnapHelper(sysfs, 'test', 'oneshot', 'jpg')
sysfs.write('2')
while 1:
button_state = button.read()
if(button_state==True and last_state == False):
snap = SnapHelper(sysfs, 'test', 'oneshot', 'jpg')
take_picture(snap)
last_state = button_state
if __name__== "__main__":
main()
sys.exit()
Output is what i expect, but it is slow.
I switched to a USB-webcam and used the pygame library instead.

Python TypeError from the coad that I copy from another .py file

Here is the code that I copy from another .py file and I got a TypeError
#coding:utf-8
import serial
import sys
import time
import logging
class TestRemoteControl(object):
def __init__(self,com):
self.ser = serial.Serial(com,115200)
self.ser.bytesize = 8
self.ser.stopbits = 1
self.logger = logging.getLogger()
self.logger.setLevel(logging.INFO)
self.formatter = logging.Formatter('%(asctime)-25s - %(name)s - %(levelname)s - %(message)s')
self.ch = logging.StreamHandler()
self.ch.setLevel(logging.INFO)
self.fh = logging.FileHandler('Test.txt')
self.fh.setLevel(logging.INFO)
self.fh.setFormatter(self.formatter)
self.ch.setFormatter(self.formatter)
self.logger.addHandler(self.ch)
self.logger.addFilter(self.fh)
def start_esc(self):
self.logger.info("开启电机")
self.ser.write("####1")
def stop_esc(self):
self.logger.info("关闭电机")
self.ser.write("####1")
time.sleep(0.4)
self.ser.write("####1")
time.sleep(0.4)
self.ser.write("####1")
time.sleep(0.4)
def speed_up(self):
self.logger.info("电机加速")
self.ser.write("####3")
def speed_down(self):
self.logger.info("电机减速")
self.ser.write("####2")
def main():
logging.basicConfig(level=logging.DEBUG,
format = '%(asctime)s %(filename)s[line:%(lineno)d] %(levelname)s %(message)s',
datefmt = '%a, %d %b %Y %H:%M:%S',
filename = 'myapp.log',
filemode = 'w')
print("please enter com num:")
a = raw_input()
temp_com = "com"+a
test_RC = TestRemoteControl(temp_com)
count = 1
max_count = int(raw_input('Please enter on-off counts'))
while count < max_count:
test_RC.start_esc()
# time.sleep(10)
# test_RC.speed_up()
time.sleep(2)
test_RC.stop_esc()
print "complete ",count," times "
time.sleep(1)
count += 1
if __name__ == "__main__":
main()
Here is the error, I don't kown why. Help me please.
TypeError:
unbound method init() must be called with TestRemoteControl instance as first argument (got nothing instead)
This code is OK.All the problem is the IDE "pycharm" that I can only run the unittest because I used the name "TestRemoteControl"

Python twisted, reactor.callLater() not defering

The following code snippet is from a python poker server. The program works except when trying to delay the start of a tourney when a reactor.callLater is used.
The variable "wait" gets its integer from an xml file which has a setting of "60". However the delay is never implemented and the tourney always starts immediately. I am not very familiar with python or twisted just trying to hack this into working for me. One thing however from my perspective is it seems that it shouldn't work given that I can't see how or where the variable "old_state" gets its value in order for the code to properly determine the states of the server. But perhaps I am mistaken.
I hope that someone familiar with python and twisted can see what the problem might be and be willing to enlighten me on this issue.
elif old_state == TOURNAMENT_STATE_REGISTERING and new_state == TOURNAMENT_STATE_RUNNING:
self.databaseEvent(event = PacketPokerMonitorEvent.TOURNEY_START, param1 = tourney.serial)
reactor.callLater(0.01, self.tourneyBroadcastStart, tourney.serial)
# Only obey extra_wait_tourney_start if we had been registering and are now running,
# since we only want this behavior before the first deal.
wait = int(self.delays.get('extra_wait_tourney_start', 0))
if wait > 0:
reactor.callLater(wait, self.tourneyDeal, tourney)
else:
self.tourneyDeal(tourney)
For reference I have placed the larger portion of the code that is relative to the problem.
def spawnTourneyInCore(self, tourney_map, tourney_serial, schedule_serial, currency_serial, prize_currency):
tourney_map['start_time'] = int(tourney_map['start_time'])
if tourney_map['sit_n_go'] == 'y':
tourney_map['register_time'] = int(seconds()) - 1
else:
tourney_map['register_time'] = int(tourney_map.get('register_time', 0))
tourney = PokerTournament(dirs = self.dirs, **tourney_map)
tourney.serial = tourney_serial
tourney.verbose = self.verbose
tourney.schedule_serial = schedule_serial
tourney.currency_serial = currency_serial
tourney.prize_currency = prize_currency
tourney.bailor_serial = tourney_map['bailor_serial']
tourney.player_timeout = int(tourney_map['player_timeout'])
tourney.via_satellite = int(tourney_map['via_satellite'])
tourney.satellite_of = int(tourney_map['satellite_of'])
tourney.satellite_of, reason = self.tourneySatelliteLookup(tourney)
tourney.satellite_player_count = int(tourney_map['satellite_player_count'])
tourney.satellite_registrations = []
tourney.callback_new_state = self.tourneyNewState
tourney.callback_create_game = self.tourneyCreateTable
tourney.callback_game_filled = self.tourneyGameFilled
tourney.callback_destroy_game = self.tourneyDestroyGame
tourney.callback_move_player = self.tourneyMovePlayer
tourney.callback_remove_player = self.tourneyRemovePlayer
tourney.callback_cancel = self.tourneyCancel
if not self.schedule2tourneys.has_key(schedule_serial):
self.schedule2tourneys[schedule_serial] = []
self.schedule2tourneys[schedule_serial].append(tourney)
self.tourneys[tourney.serial] = tourney
return tourney
def deleteTourney(self, tourney):
if self.verbose > 2:
self.message("deleteTourney: %d" % tourney.serial)
self.schedule2tourneys[tourney.schedule_serial].remove(tourney)
if len(self.schedule2tourneys[tourney.schedule_serial]) <= 0:
del self.schedule2tourneys[tourney.schedule_serial]
del self.tourneys[tourney.serial]
def tourneyResumeAndDeal(self, tourney):
self.tourneyBreakResume(tourney)
self.tourneyDeal(tourney)
def tourneyNewState(self, tourney, old_state, new_state):
cursor = self.db.cursor()
updates = [ "state = '" + new_state + "'" ]
if old_state != TOURNAMENT_STATE_BREAK and new_state == TOURNAMENT_STATE_RUNNING:
updates.append("start_time = %d" % tourney.start_time)
sql = "update tourneys set " + ", ".join(updates) + " where serial = " + str(tourney.serial)
if self.verbose > 2:
self.message("tourneyNewState: " + sql)
cursor.execute(sql)
if cursor.rowcount != 1:
self.error("modified %d rows (expected 1): %s " % ( cursor.rowcount, sql ))
cursor.close()
if new_state == TOURNAMENT_STATE_BREAK:
# When we are entering BREAK state for the first time, which
# should only occur here in the state change operation, we
# send the PacketPokerTableTourneyBreakBegin. Note that this
# code is here and not in tourneyBreakCheck() because that
# function is called over and over again, until the break
# finishes. Note that tourneyBreakCheck() also sends a
# PacketPokerGameMessage() with the time remaining, too.
secsLeft = tourney.remainingBreakSeconds()
if secsLeft == None:
# eek, should I really be digging down into tourney's
# member variables in this next assignment?
secsLeft = tourney.breaks_duration
resumeTime = seconds() + secsLeft
for gameId in map(lambda game: game.id, tourney.games):
table = self.getTable(gameId)
table.broadcast(PacketPokerTableTourneyBreakBegin(game_id = gameId, resume_time = resumeTime))
self.tourneyBreakCheck(tourney)
elif old_state == TOURNAMENT_STATE_BREAK and new_state == TOURNAMENT_STATE_RUNNING:
wait = int(self.delays.get('extra_wait_tourney_break', 0))
if wait > 0:
reactor.callLater(wait, self.tourneyResumeAndDeal, tourney)
else:
self.tourneyResumeAndDeal(tourney)
elif old_state == TOURNAMENT_STATE_REGISTERING and new_state == TOURNAMENT_STATE_RUNNING:
self.databaseEvent(event = PacketPokerMonitorEvent.TOURNEY_START, param1 = tourney.serial)
reactor.callLater(0.01, self.tourneyBroadcastStart, tourney.serial)
# Only obey extra_wait_tourney_start if we had been registering and are now running,
# since we only want this behavior before the first deal.
wait = int(self.delays.get('extra_wait_tourney_start', 0))
if wait > 0:
reactor.callLater(wait, self.tourneyDeal, tourney)
else:
self.tourneyDeal(tourney)
elif new_state == TOURNAMENT_STATE_RUNNING:
self.tourneyDeal(tourney)
elif new_state == TOURNAMENT_STATE_BREAK_WAIT:
self.tourneyBreakWait(tourney)
I have discovered that this code has several imported files that were in another directory that I did not examine. I also made a false assumption of the purpose of this code block. I expected the function to be arbitrary and delay each tourney by n seconds but in practice it implements the delay only when a player forgets about the game and does not show up for it. These facts were made clear once I examined the proper files. Lesson learned. Look at all the imports!