#!/usr/bin/python3
from pyVim.connect import SmartConnect, Disconnect
from pyVmomi import vim, vmodl
import ssl
import atexit

# 接続先情報
host = 'ESXi or vCenter IP'
username = 'username'
password = 'password'

def main():
    # SSL証明書対策
    context = None
    if hasattr(ssl, '_create_unverified_context'):
        context = ssl._create_unverified_context()

    # 接続
    si = SmartConnect(host = host,
                      user = username,
                      pwd = password,
                      sslContext = context)

    # 処理完了時にvCenterから切断
    atexit.register(Disconnect, si)

    content = si.content
    r = content.perfManager.perfCounter
    for i in r:
        key_num = i.key
        label = i.nameInfo.label
        summary = i.nameInfo.summary
        unit = i.nameInfo.key
        print("%s,%s,%s,%s" % (key_num, label, summary, unit))

if __name__ == '__main__':
    main()