Split returning Indexerror

Question

I have a file that the lines have this pattern:

0.22755189537     SN.node[0].Application                   SENDING BEACON # 0
0.22755189537     SN.node[0].Application                   Sending [Beacon] of size 105 bytes to communication layer
0.22755189537     SN.node[0].Communication.Radio           Buffered [BypassRouting packet] from MAC layer
0.22755189537     SN.node[0].Communication.Radio           SET STATE to TX, delay=1e-05, power=62
0.227561895369    SN.node[1].Communication.Radio           START signal from node 0 , received power -87.6124dBm
0.231689895368    SN.node[0].Communication.Radio           TX finished (no more pkts in the buffer) changing to RX
0.231689895368    SN.node[1].Communication.Radio           END signal from node 0
0.231689895368    SN.node[1].Communication.Radio           Received packet (WC_SIGNAL_END) from node 0, with no interference
0.231699895368    SN.node[1].Application                   RECEBIDO BEACON #0 - ORIGEM 0 - SALTOS 0

I tried to split to get the value between [ ], like this: x.split()[1]. split('[')[1][0] but gives Indexerror error: list index out of range.

Answer 1

Assuming you only want to separate the value between the brackets.

Read each line of arquivo.txt and slicing into the desired column.

Then just add the cut extracted from the line into a list.

lista=[] 

arq = open("arquivo.txt", "r")

for linha in arq :

        lista.append(linha[26:27])

arq.close()

To print the list:

for l in lista:

        print(l)

Exit:

0
0
0
0
1
0
1
1
1