Python 3 標準モジュールで HTTP + numpy array をやりとり

client.py

from http.client import HTTPConnection
import numpy as np


# GET
conn = HTTPConnection('', 8080)
conn.request('GET', '/')
res = conn.getresponse()
conn.close()
print(res.status)
print(res.headers)
body = res.read()
print(np.loads(body))

# POST
conn = HTTPConnection('', 8080)
body = np.array([1,2,3]).dumps()
headers = { 'Content-Length': len(body) }
conn.request('POST', '/', body, headers)
res = conn.getresponse()
conn.close()
print(res.status)
print(res.headers)

server.py

from http.server import HTTPServer, BaseHTTPRequestHandler
import os
import numpy as np


class Handler(BaseHTTPRequestHandler):

    def do_GET(self):
        self.send_response(200)
        self.end_headers()
        body = np.array([1,2,3]).dumps()
        self.wfile.write(body)

    def do_POST(self):
        size = int(self.headers['Content-Length'])
        body = self.rfile.read(size)
        print(np.loads(body))
        self.send_response(200)
        self.end_headers()


if __name__ == '__main__':
    port = int(os.environ.get('PORT', 80))
    server = HTTPServer(('', port), Handler)
    try:
        server.serve_forever()
    except KeyboardInterrupt:
        pass
    finally:
        server.shutdown()