shutil复制树错误

Question

可能重复： builds/out exists but it doesnt exist

我试图使用下面的代码复制源代码树并遇到这个错误，不知道为什么要这样做?错误说\Ref\builds/out存在，但它不存在，有谁在这里有任何错误的输入？

//local/mnt/workspace/04.01_HY11/out
\\Ref\builds/out
copying
Traceback (most recent call last):
  File "test.py", line 21, in <module>
    main()
  File "test.py", line 18, in main
    copytree(src,dst)
  File "test.py", line 11, in copytree
    shutil.copytree(s, d)
  File "/pkg/qct/software/python/2.5.2/.amd64_linux26/lib/python2.5/shutil.py", line 110, in copytree
    os.makedirs(dst)
  File "/pkg/qct/software/python/2.5.2/.amd64_linux26/lib/python2.5/os.py", line 171, in makedirs
    mkdir(name, mode)
OSError: [Errno 17] File exists: '\\\\Ref\\builds/out'

Python代码

import os,shutil

def copytree(src, dst, symlinks=False, ignore=None):
    for item in os.listdir(src):
        s = os.path.join(src, item)
        print s
        d = os.path.join(dst, item)
        print d
        if os.path.isdir(s):
            print "copying"
            shutil.copytree(s, d, symlinks, ignore)
        else:
            shutil.copy2(s, d)
def main ():
    src="//local/mnt/workspace/04.01_HY11"
    dst="\\\\Ref\\builds"
    copytree(src,dst)

if __name__ == '__main__':
    main()

Answer 1

错误是因为目标目录已经存在，必须在此之前删除它。