I'm trying to run a program I've made but am having issues. It's stating there is an error on line 8? It was working the other day and I'm not sure if it has been changed. Is this an connection error to the database perhaps??
import RPi.GPIO as GPIO
import datetime
import time
import pymssql
conn = pymssql.connect (server='192.168.0.223', user='iad', password='iad',database='inputData')
cursor = conn.cursor()
#cursor.execute('select * from yesno')
#row = cursor.fetchone()
#while row:
# print str(row[0])
# row = cursor.fetchone()
print("Welcome! Button live data:")
GPIO.setmode(GPIO.BCM)
GPIO.setup(18, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(23, GPIO.IN, pull_up_down=GPIO.PUD_UP)
while True:
input_state = GPIO.input(18)
input_state2 = GPIO.input(23)
if input_state == False:
print('Happy')
print(time.strftime("%Y-%m-%d"))
cursor.execute("INSERT INTO buttonsPressed (inputResult, date) VALUES ('yes', '" + time.strftime("%Y-%m-%d") + "')")
conn.commit()
time.sleep(1)
if input_state2 == False:
print('Not Happy')
print(time.strftime("%Y-%m-%d"))
cursor.execute("INSERT INTO buttonsPressed (inputResult, date) VALUES ('no', '" + time.strftime("%Y-%m-%d") + "')")
conn.commit()
time.sleep(1)
I'm getting this error?:
File "buttonin.py", line 8, in <module>
conn = pymssql.connect (server='192.168.0.223', user='iad', password='iad',database='inputData')
TypeError: connect() got an unexpected keyword argument 'server'
You may use host="" instead of server=""
I also had the same error.
Try upgrading the python pymssql library.
In Ubuntu you can upgrade it by following commands:
1. sudo apt-get install freetds-dev
2. pip install pymssql --upgrade
Hope this helps you.
Related
import PIL
img = PIL.Image.new("RGB", (100,100))
img.show()
The error message:
FSPathMakeRef(/Applications/Preview.app) failed with error -43.
Following from Sean True's answer, an even quicker but temporary fix is to simply make a symbolic link to Preview.app in the old location. In the terminal run
ln -s /System/Applications/Preview.app /Applications/Preview.app
This fixed the problem for me.
There's an official fix in github for Pillow 7, but I'm still on 6.
This appears to be a PIL ImageShow issue, with the PIL MacViewer using /Applications/Preview.app as an absolute path to the OSX Preview app.
It's not there in Catalina. I did a quick hack to ImageShow.py changing /Applications/Preview.app to just Preview.app and the issue went away. That might or might not still work on pre-Catalina OSX, but I don't have an easy way to test.
It has apparently moved to /System/Applications/Preview.app so a quick check at run time would probably cover both cases.
elif sys.platform == "darwin":
class MacViewer(Viewer):
format = "PNG"
options = {'compress_level': 1}
preview_locations = ["/System/Applications/Preview.app","/Applications/Preview.app"]
preview_location = None
def get_preview_application(self):
if self.preview_location is None:
for pl in self.preview_locations:
if os.path.exists(pl):
self.preview_location = pl
break
if self.preview_location is None:
raise RuntimeError("Can't find Preview.app in %s" % self.preview_locations)
return self.preview_location
def get_command(self, file, **options):
# on darwin open returns immediately resulting in the temp
# file removal while app is opening
pa = self.get_preview_application()
command = "open -a %s" % pa
command = "(%s %s; sleep 20; rm -f %s)&" % (command, quote(file),
quote(file))
return command
def show_file(self, file, **options):
"""Display given file"""
pa = self.get_preview_application()
fd, path = tempfile.mkstemp()
with os.fdopen(fd, 'w') as f:
f.write(file)
with open(path, "r") as f:
subprocess.Popen([
'im=$(cat);'
'open %s $im;'
'sleep 20;'
'rm -f $im' % pa
], shell=True, stdin=f)
os.remove(path)
return 1
I am trying to send video from raspberry pi to my laptop via laptop
and save them as pictures so i found the below code online
but I get the following errors when I run them
so i run this client code on the pi using Thonny ide that comes preloaded
, I apologize for the way code is formatted below and would be very grateful if anybody can help me sort this out
Server on the laptop is run using python 3.6 idle
import sys
import numpy as np
import cv2
import socket
class VideoStreamingTest(object):
def __init__(self):
self.server_socket = socket.socket()
self.server_socket.bind(('0.0.0.0', 9006))
self.server_socket.listen(0)
self.connection, self.client_address = self.server_socket.accept()
self.connection = self.connection.makefile('rb')
self.streaming()
def streaming(self):
try:
print("Connection from: ", self.client_address)
print("Streaming...")
print("Press 'q' to exit")
stream_bytes = ' '
while True:
stream_bytes += self.connection.read(1024)
first = stream_bytes.find('\xff\xd8')
last = stream_bytes.find('\xff\xd9')
if first != -1 and last != -1:
jpg = stream_bytes[first:last + 2]
stream_bytes = stream_bytes[last + 2:]
#image = cv2.imdecode(np.fromstring(jpg, dtype=np.uint8), cv2.CV_LOAD_IMAGE_GRAYSCALE)
image = cv2.imdecode(np.fromstring(jpg, dtype=np.uint8), cv2.CV_LOAD_IMAGE_UNCHANGED)
cv2.imshow('image', image)
if cv2.waitKey(1) & 0xFF == ord('q'):
break
finally:
self.connection.close()
self.server_socket.close()
if __name__ == '__main__':
VideoStreamingTest()
I get the following error
Connection from: ('192.168.43.3', 47518)
Streaming...
Press 'q' to exit
Traceback (most recent call last):
File "C:\Users\John Doe\d-ff\Desktop\AutoRCCar-master
3\test\stream_server_test.py", line 46, in <module>
VideoStreamingTest()
File "C:\Users\John Doe\d-ff\Desktop\AutoRCCar-master
3\test\stream_server_test.py", line 16, in __init__
self.streaming()
File "C:\Users\John Doe\d-ff\Desktop\AutoRCCar-master
3\test\stream_server_test.py", line 28, in streaming
stream_bytes += self.connection.read(1024)
TypeError: must be str, not bytes
Client side on the pi
import io
import socket
import struct
import time
import picamera
# create socket and bind host
client_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
client_socket.connect(('ToM', 9006))
connection = client_socket.makefile('wb')
try:
with picamera.PiCamera() as camera:
camera.resolution = (320, 240) # pi camera resolution
camera.framerate = 5 # 10 frames/sec
time.sleep(2) # give 2 secs for camera to initilize
start = time.time()
stream = io.BytesIO()
# send jpeg format video stream
for foo in camera.capture_continuous(stream, 'jpeg', use_video_port = True):
connection.write(struct.pack('<L', stream.tell()))
connection.flush()
stream.seek(0)
connection.write(stream.read())
if time.time() - start > 600:
break
stream.seek(0)
stream.truncate()
connection.write(struct.pack('<L', 0))
finally:
connection.close()
client_socket.close()
I get the following error
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/pi/Desktop/stream_client.py", line 40, in <module>
connection.close()
File "/usr/lib/python3.5/socket.py", line 594, in write
return self._sock.send(b)
BrokenPipeError: [Errno 32] Broken pipe
I first thought it might be because of the limited bandwidth since i was running vnc viewer (remote desktop) via wifi on the pi but I don't think it is
I also had same problem. After some searching I found solution.
In python 3 we have to specify whether string is regular string or binary.Thats why we use b'string' instead of just 'string'
Change
stream_bytes = ' '
to
stream_bytes = b' '
Also change
first = stream_bytes.find('\xff\xd8')
last = stream_bytes.find('\xff\xd9')
to
first = stream_bytes.find(b'\xff\xd8')
last = stream_bytes.find(b'\xff\xd9')
Note that you are using cv2.CV_LOAD_IMAGE_UNCHANGED which is not available in opencv3.0
Use cv2.IMREAD_COLOR to show image in color.
Edit these changes and your stream should run smoothly.
connection.write(struct.pack('<L', 0))
Check out by inserting the above within try
Anybody tried to use numba in google collaboratory? I just can not figure out how to set it up in this environment.
At the moment, I'm stuck with the error library nvvm not found.
Copy this code into cell. It works for me.
!apt-get install nvidia-cuda-toolkit
!pip3 install numba
import os
os.environ['NUMBAPRO_LIBDEVICE'] = "/usr/lib/nvidia-cuda-toolkit/libdevice"
os.environ['NUMBAPRO_NVVM'] = "/usr/lib/x86_64-linux-gnu/libnvvm.so"
from numba import cuda
import numpy as np
import time
#cuda.jit
def hello(data):
data[cuda.blockIdx.x, cuda.threadIdx.x] = cuda.blockIdx.x
numBlocks = 5
threadsPerBlock = 10
data = np.ones((numBlocks, threadsPerBlock), dtype=np.uint8)
hello[numBlocks, threadsPerBlock](data)
print(data)
I didn't have to install the packages #Algis suggested, but the paths to the drivers were different. So I had to do the following.
First determine the correct paths for the drivers
!find / -iname 'libdevice'
!find / -iname 'libnvvm.so'
# Output:
# /usr/local/cuda-9.2/nvvm/lib64/libnvvm.so
# /usr/local/cuda-9.2/nvvm/libdevice
Then set the paths as #Algis described
import os
os.environ['NUMBAPRO_LIBDEVICE'] = "/usr/local/cuda-9.2/nvvm/libdevice"
os.environ['NUMBAPRO_NVVM'] = "/usr/local/cuda-9.2/nvvm/lib64/libnvvm.so"
You can do #Stan's work in one simple sweep if you have this block at the beginning of your colab notebook (this also automatically updates as CUDA gets updated)
import os
dev_lib_path = !find / -iname 'libdevice'
nvvm_lib_path = !find / -iname 'libnvvm.so'
assert len(dev_lib_path)>0, "Device Lib Missing"
assert len(nvvm_lib_path)>0, "NVVM Missing"
os.environ['NUMBAPRO_LIBDEVICE'] = dev_lib_path[0]
os.environ['NUMBAPRO_NVVM'] = nvvm_lib_path[0]
I wrote an IP and port scanning program and I want to take the captured data and output it to a text file. I've been trying to figure it out for a while and haven't had any luck applying what I can find in searches. At the end, I commented out how I thought it should work to write the information to a file.
Any help or suggestions would be greatly appreciated, I'm still somewhat new to Python and trying to learn.
#!/usr/bin/env python
import ipaddress
import sys, time
import os
import subprocess
import socket
from datetime import datetime
FNULL = open(os.devnull, 'w')
s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
print ('Welcome to the IP/Port Scanner and Logger')
address = input('Enter starting IP address: ')
split1 = first,second,third,fourth = str(address).split('.')
start = int(fourth)
host = first+'.'+second+'.'+third+'.'+str(start)
end_address = input('Enter the ending IP address: ')
split2 = first,second,third,fourth = str(end_address).split('.')
end = int(fourth)
network = first+'.'+second+'.'+third+'.'
min_port = input("Enter starting port range: ")
max_port = input("Enter ending port range: ")
remoteserver = host
remoteserverIP = socket.gethostbyname(remoteserver)
def port_scan():
print ('Port scanning function initialized:')
try:
for port in range(int(min_port),int(max_port)):
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
result = sock.connect_ex((remoteserverIP, port))
if result == 0:
print ('Port ' + str(port) + ': Open')
sock.close()
except KeyboardInterrupt:
print ("You halted the process")
sys.exit()
except socket.gaierror:
print ('Hostname could not be resolved. Exiting')
sys.exit()
except socket.error:
print ("Couldn't connect to server")
sys.exit()
return port
def check_up():
for ip_address in range(int(start), int(end)):
try:
subprocess.check_call(['ping', '-c', '2',
network + str(ip_address)],
stdout=FNULL,stderr=FNULL)
except (OSError, subprocess.CalledProcessError):
print ("{}{}".format(network,ip_address), "is down")
except KeyboardInterrupt:
print ("You halted the process")
sys.exit()
else:
print ("{}{}".format(network,ip_address), "is up")
return ip_address
check_up()
time1 = datetime.now()
time2 = datetime.now()
scantime = time2-time1
print ('Scan completed in: ', scantime)
while True:
print ('Would you like to write information to file?')
answer = input()
if answer in ['yes', 'y', 'yeah']:
print ('Alright, writing to file')
print ('Program will exit upon scan completion.')
break
elif answer in ['no', 'n']:
print ('Okay, exiting now..')
sys.exit()
break
else:
print ('Please enter a yes or no value')
###Output File
##with open('ipscan.txt', 'w+') as ip:
## print (ip_address, port)
##
##sys.exit()
I have the below code that i am trying the run using python3.2 interpreter.
import socket #for sockets
import sys #for exit
#from UserString import MutableString
#create an INET, STREAMing socket
try:
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
except socket.error:
print ('Failed to create socket')
sys.exit()
print ('Socket Created')
host = 'www.google.com';
port = 80;
try:
remote_ip = socket.gethostbyname( host )
except socket.gaierror:
#could not resolve
print ('Hostname could not be resolved. Exiting')
sys.exit()
#Connect to remote server
s.connect((remote_ip , port))
print ('Socket Connected to ' + host + ' on ip ' + remote_ip)
#Send some data to remote server
message = "GET / HTTP/1.0\r\n\r\n"
try :
#Set the whole string
s.sendall(message.encode())
except socket.error:
#Send failed
print ('Send failed')
sys.exit()
print ('Message send successfully')
#Now receive data
messageParts = []
remaining = 4096
chunk = s.recv(remaining)
messageParts.append(chunk)
while (len(chunk) > 0):
chunk = s.recv(remaining)
messageParts.append(chunk.decode())
finalMessage = b"".join(messageParts)
print('Printing the html contents ...')
print(finalMessage)
Upon running the above code, with python version 3.2, i get the below error:
Socket Created
Socket Connected to www.google.com on ip 74.125.201.147
Message send successfully
Traceback (most recent call last):
File "TestMainServerV2.py", line 73, in <module>
finalMessage = b"".join(messageParts)
TypeError: sequence item 1: expected bytes, str found
Could anybody let me know what is the issue?
Thanks!
messageParts.append(chunk.decode())
is appending strs to messageParts.
chunk = s.recv(remaining)
messageParts.append(chunk)
is appending bytes to messageParts. (Everything that comes through a socket is bytes so chunk is a bytes object.)
Especially in Python3, one should never mix strs and bytes.
b"".join(messageParts)
raises a TypeError since b"".join expects only bytes.
You can avoid the problem by not decoding chunk. Use
messageParts.append(chunk)
instead of
messageParts.append(chunk.decode())