Test opened socket and file limit in Python

test_limit.py

from __future__ import print_function
import ctypes, socket, time

import gevent.monkey
gevent.monkey.patch_all()

print("Max stdio:", ctypes.cdll.msvcr100._getmaxstdio())
# print("Max stdio:", ctypes.cdll.msvcr100._setmaxstdio(2048))
# via https://github.com/ariccio/DuplicateFileFinder/blob/master/py_duplicate_pysummer.py

print("Testing files...")
files = []
for i in range(64000):
	try:
		files.append(open("test_limit.py"))
	except Exception as err:
		print("Error:", err)
		break
print("Max:", len(files))
del files

print("Testing sockets...")
sockets = []

def handle(socket, address):
	pass

import gevent.server

server = gevent.server.StreamServer(('127.0.0.1', 8800), handle) # creates a new server
gevent.spawn(server.start) # start accepting new connections
gevent.sleep(0.1)

for i in range(64000):
	try:
		s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
		s.connect(("127.0.0.1", 8800))
		sockets.append(s)
	except Exception as err:
		print("Error:", err)
		break
print("Max:", len(sockets))
del sockets