I have reviewed similar questions but haven't found a solution that works for me.
My inquiry is regarding the following code snippet:
function pyInput(){
const buffers = [];
proc.stdout.on('data', (chunk) => buffers.push(chunk));
proc.stdout.on('end', () => {
const result = JSON.parse(Buffer.concat(buffers));
console.log('Python process exited, result:', result);
});
proc.stdin.write(JSON.stringify([['a','b',1],['b','c',-6],['c','a',4],['b','d',5],['d','a', -10]]));
proc.stdin.end();
}
The python function I'm attempting to utilize is as follows:
def createGraph(listOfAttr):
for i in range(len(listOfAttr)):
G.add_edge(listOfAttr[i][0], listOfAttr[i][1], weight = listOfAttr[i][2])
#createGraph([['a','b',1],['b','c',-6],['c','a',4],['b','d',5],['d','a', -10]])
my_list = json.load(sys.stdin)
json.dump(my_list,sys.stdout)
This code aims to identify negative cycles in a graph, with the intention to input data from node js. However, my python program seems to get stuck and does not complete execution. Currently, I am refraining from passing the list from Node to the python function, but I am trying to at least display it to verify if it's being transmitted correctly.