socket.error

[Ibrahim Salim Omari]

Greetings,
there seems to be no socket.error nor socket.OSError. How can I trap an error seeing that the socket library has no socket.error clause?

here's my sample snippet:

while True:
    msg = input('Enter message to send : ')

    try :
        # Set the whole string and convert encode the string to bytes
        s.sendto(str.encode(msg), (host, port))

        # receive data from client (data, addr)
        d = s.recvfrom(1024)
        reply = d[0]
        addr = d[1]

        print('Server reply : ' + str(bytes.decode(reply)))  # convert reply to string
    except socket.error:
        print('Error Code : ' + str(msg[0]) + ' Message ' + str(msg[1]))
        sys.exit()

and the error is:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/lib/udpClient.py", line 32, in <module>
AttributeError: 'module' object has no attribute 'error'

The "except socket.error" is the error line

thanks
omari

[MichaelWojcik]

@Ibrahim-Salim-Omari

The usocket implementation does not include an form of custom errors. Instead it throws in instance of OSError

instead of:

except socket.error:

try

except OSError:

[Ibrahim Salim Omari]

Which board are you using? I'm using the expressif esp32-wrover-b.
Your code is no different than mine. Even if I enter it line by line in pymakr repl, I still get an error on: except socket.error.
From the pymakr prompt, there is no socket.error nor socket.socket.error routine. And yes, I'm importing socket not usocket although I tried it with usocket and got the same error.

The code runs fine as long as there are no errors at which time the socket.error routine is called.

[Gijs]

For me, it works if I use it like this (perhaps you are importing usocket instead of socket?):

from network import WLAN
import time
import socket
import machine
import sys
wlan = WLAN()
wlan.mode(WLAN.STA)
wlan.connect(ssid="",auth=(WLAN.WPA2, "#"))
print("connecting.",end ='')
while not wlan.isconnected():
    print(".",end='')
    time.sleep(1)
print("connected")
print("WiFi connection established")

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

while True:
    msg = 'Enter message to send : '

    try :
        # Set the whole string and convert encode the string to bytes
        s.sendto(str.encode(msg), ('192.168.4.4', 80))

        # receive data from client (data, addr)
        d = s.recvfrom(1024)
        reply = d[0]
        addr = d[1]

        print('Server reply : ' + str(bytes.decode(reply)))  # convert reply to string
    except socket.error:
        print('Error Code : ' + str(msg[0]) + ' Message ' + str(msg[1]))
        sys.exit()