如何使用python从ftps服务器下载zip文件

Question

我需要从我的implict ftps服务器下载一个zip文件。这是我尝试下载文件的代码：

public class WiFiDemo extends Activity implements OnClickListener
 {      
    WifiManager wifi;       
    ListView lv;
    TextView textStatus;
    Button buttonScan;
    int size = 0;
    List<ScanResult> results;

    String ITEM_KEY = "key";
    ArrayList<HashMap<String, String>> arraylist = new ArrayList<HashMap<String, String>>();
    SimpleAdapter adapter;

    /* Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        textStatus = (TextView) findViewById(R.id.textStatus);
        buttonScan = (Button) findViewById(R.id.buttonScan);
        buttonScan.setOnClickListener(this);
        lv = (ListView)findViewById(R.id.list);

        wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
        if (wifi.isWifiEnabled() == false)
        {
            Toast.makeText(getApplicationContext(), "wifi is disabled..making it enabled", Toast.LENGTH_LONG).show();
            wifi.setWifiEnabled(true);
        }   
        this.adapter = new SimpleAdapter(WiFiDemo.this, arraylist, R.layout.row, new String[] { ITEM_KEY }, new int[] { R.id.list_value });
        lv.setAdapter(this.adapter);

        registerReceiver(new BroadcastReceiver()
        {
            @Override
            public void onReceive(Context c, Intent intent) 
            {
               results = wifi.getScanResults();
               size = results.size();
            }
        }, new IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION));                    
    }

    public void onClick(View view) 
    {
        arraylist.clear();          
        wifi.startScan();

        Toast.makeText(this, "Scanning...." + size, Toast.LENGTH_SHORT).show();
        try 
        {
            size = size - 1;
            while (size >= 0) 
            {   
                HashMap<String, String> item = new HashMap<String, String>();                       
                item.put(ITEM_KEY, results.get(size).SSID + "  " + results.get(size).capabilities);

                arraylist.add(item);
                size--;
                adapter.notifyDataSetChanged();                 
            } 
        }
        catch (Exception e)
        { }         
    }    
}

在这个程序中，我能够登录到我的ftps服务器，并且能够找到其中存在的文件。但是，当我尝试通过import sys import chilkat ftp = chilkat.CkFtp2() # Any string unlocks the component for the 1st 30-days. success = ftp.UnlockComponent("Anything for 30-day trial") if (success != True): print(ftp.lastErrorText()) sys.exit() # If this example does not work, try using passive mode # by setting this to True. ftp.put_Passive(False) ftp.put_Hostname("hostip") ftp.put_Username("username") ftp.put_Password("password") ftp.put_Port(990) # We don't want AUTH SSL: ftp.put_AuthTls(False) # We want Implicit SSL: ftp.put_Ssl(True) # Connect and login to the FTP server. success = ftp.Connect() if (success != True): print(ftp.lastErrorText()) sys.exit() else: # LastErrorText contains information even when # successful. This allows you to visually verify # that the secure connection actually occurred. print(ftp.lastErrorText()) print("FTPS Channel Established!") #clearing the control channel success = ftp.ClearControlChannel() if (success != True): print(ftp.lastErrorText()) sys.exit() else: print(ftp.lastErrorText()) ftpResponse = ftp.feat() fileSize = ftp.GetSizeByName("15_20.zip") if (fileSize < 0): print("file does not exist") else: print("file exists and is " + str(fileSize) + " bytes in size") ftp.put_RestartNext(True) localFilename = "C://mcx5min//14_40.zip" # copy the path from the old mcx.py remoteFilename = "14_40.zip" success = ftp.GetFile(remoteFilename, localFilename) if (success != True): print(ftp.lastErrorText()) sys.exit() ftp.Disconnect() 函数下载文件时，会抛出类似＆＃34; GetFile()＆＃34;的错误。我不确切地知道本地使用Windows服务器的错误是什么。我真的很新。所以请任何人帮我解决这个问题。