E1136

Message

Value 'variable_name' is unsubscriptable

Description

Used when there is a reference to an object that initialized as a non-subscriptable object

Explanation

Example:

files = {'txt': None, 'doc': None}

for file in os.listdir():
    if file.endswith('.txt'):
        files['txt'].append(file)
    elif file.endswith('.doc'):
        files['doc'].append(file)

print(files['txt'][0])

Pylint will report that "Value 'files['txt'] is unsubscriptable" even though this code will execute without error because files['txt'] was initialized to None, which is unsubscriptable.

Try instead to use:

files = {'txt': [], 'doc': []}

for file in os.listdir():
    if file.endswith('.txt'):
        files['txt'].append(file)
    elif file.endswith('.doc'):
        files['doc'].append(file)

print(files['txt'][0])

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Help with code.

josdar 14 Mar 2019 06:55

I am somewhat understanding this solution however I am unable to figure out how to apply it to my code that I am having a problem with. Could you help me out with figuring what the solution is?

The part that I need help with has the comment "problem code starts here".

# Simple socket server using threads
import os
import socket
import sys
 
HOST = ''   # Symbolic name, meaning all available interfaces
PORT = 5500  # Arbitrary non-privileged port
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
print('Socket created')
# problem starts here <.-.>
# Bind socket to local host and port
try:
    s.bind((HOST, PORT))
except socket.error as msg:
    print('Bind failed. Error Code : ' + str(msg[0]) + ' Message ' + msg[1])
    sys.exit()
print('Socket bind complete')
# Start listening on socket
s.listen(10)
print('Socket now listening')
# now keep talking with the client
while 1:
    # wait to accept a connection - blocking call
    conn, addr = s.accept()
    print('Connected with ' + addr[0] + ':' + str(addr[1]))
s.close()

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