Question

我是一名新手程序员，所以请原谅我的查询代码不好和简单。我试图通过Python将SQL数据库备份从一台机器转移到另一台机器。我在Windows 7 Professional机器上使用Python 3.6.4版。我将它转移到的机器是Windows 10机器。现在，当我在Python shell中逐行输入以下代码时，它没有任何问题。

import os, pyodbc, shutil
connection = pyodbc.connect(driver = '{ODBC Driver 13 for SQL Server}',
                        server = 'SERVER',
                        database = 'DATABASE',
                        UID = 'USER',
                        PWD = 'PASS',
                        autocommit = True)
connection.cursor().execute(
    r"backup database DATABASE to disk = 'c:/DB/backup/DATABASE.bak';")
connection.close()
os.system(r'net use   \\0.0.0.001\DB\backup /user:DOMAIN\USER PASS')
os.system(r'net use   \\0.0.0.100\d\Backups /user:DOMAIN\USER PASS')
file = 'DATABASE.bak'
src = os.path.join('\\\\0.0.0.001','DB','backup', file)
dst = os.path.join('\\\\0.0.0.100','d','Backups')
shutil.move(src, dst)
os.system(r'net use * /delete /y')

然而，当我编译代码（通过pyinstaller）并在Windows 10机器上运行它时，它首先在每个额外的时间运行初始时间和错误。我得到的错误是Windows Error 2 (File Not Found)。

Traceback (most recent call last):
  File "shutil.py", line 544, in move
FileNotFoundError: [WinError 2] The system cannot find the file specified: '\\\\0.0.0.001\\DB\\backup\\DATABASE.bak' -> '\\\\0.0.0.100\\d\\Backups\\DATABASE.bak'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "transfer.py", line 47, in SQL
  File "shutil.py", line 558, in move
  File "shutil.py", line 257, in copy2
  File "shutil.py", line 120, in copyfile
FileNotFoundError: [Errno 2] No such file or directory: '\\\\0.0.0.001\\DB\\backup\\DATABASE.bak'

我很困惑为什么会这样。任何指导都会受到赞赏，所以我可以不停地敲打桌子。

Answer 1

我可以使用os.system()调用robocoby然后使用os.remove()删除原始文件来解决此问题。奇迹般有效。抱歉shutil()。

使用shutil.copy模块通过网络传输文件的正确方法是什么？

1 个答案: