蟒蛇。 文件操作

Question

def copytree(src, dst, symlinks=False, ignore=None):
    for item in os.listdir(src):
        s = os.path.join(src, item)
        d = os.path.join(dst, item)
        if os.path.isdir(s):
            print "copying"
            shutil.copytree(s, d, symlinks, ignore=None)
        else:
            shutil.copy2(s, d)
def main ():
    #path to input
    src="/home/user/abcd"
    #here path to output
    dst="/home/user/dirtest"
    copytree(src,dst)

if __name__ == '__main__':
    main()

How do I copy the file in the destination folder if it already exists? The newer file should be renamed to something like filename.x.ext.

Eg- If I try to copy newfile.jpg and it already exists in the folder, it should get copied as newfile.1.jpg . If newfile.1.jpg also exists already, the new file should be named newfile.2.jpg and so on

Answer 1

def getUniqueName(destPath):
   d = destPath[:]
   count = 0
   while os.path.exists(d):
      count += 1 
      parts = os.path.splitext(d)
      d = "%s.%s%s"%(parts[0],count,parts[1])
   return d

I think that would work

then just call it as

shutil.copy2(s, getUniqueName(d))

wont help when you do shutil.copytree