Test and change max open files limit

test_max.py

fdb = []
for i in xrange(10000):
    try:
        fdb.append(open('test_max.py', 'r'))
    except Exception, err:
        print "Max open files without changing settings: %s" % i
        break
fdb = []

import sys
if sys.platform == "win32":
    import win32file
    print "Current maxstdio", win32file._getmaxstdio(), "Changing to 2048..."
    win32file._setmaxstdio(2048)
else:
    import resource
    soft, hard = resource.getrlimit(resource.RLIMIT_NOFILE)
    print "Current RLIMIT_NOFILE limit:", soft, hard, "Changing to 2048..."
    resource.setrlimit(resource.RLIMIT_NOFILE, (2048, hard))

fdb = []
for i in xrange(10000):
    try:
        fdb.append(open('test_max.py', 'r'))
    except Exception, err:
        print "Max open files after changing settings: %s" % i
        break