Python requests.post在本地主机上超时

Question

I'm having trouble getting the Python requests module to post to an endpoint on the same server.

The server is running flask, and the route I want to post to is /new_applet .

My code is below. It is inside a different flask route function, which could be an issue?

url = "http://0.0.0.0:5000/new_applet"
data = {
    "action": "add",
    "plugin": plugin,
    "version": version,
    "component": component
}

resp = requests.post(url, data=data)

However it hangs while trying to make the post request. Debugging shows that the request never reaches the flask route function.

The request works if I run the following command on the server:

curl --location --request POST '0.0.0.0:5000/new_applet' \
  --form 'action=add' \
  --form 'plugin=up_spotify' \
  --form 'version=0.1' \
  --form 'component=inputs'

Why doesn't the Python request work, when the curl request does?

Answer 1

I believe flask runs a single thread by default.

According to your explanation, if the request is made from flask then it blocks the thread waiting for a reply (same thread that is supposed to handle the request.post ).

you could try to use multiple thread as explained here: Can I serve multiple clients using just Flask app.run() as standalone?