Question

我有这个python应用程序，应该将OS X上的.app复制到一个新的地方，然后运行它。我在复制之前和之后对文件执行SHA1校验和，以确保副本没有错误，并且校验和检出。任何人都可以想到为什么会这样吗？我也确保文件权限在复制的.app上完全打开chmod 777，但没有修复它。

这是我在python中复制函数的核心。这是从其他地方略微编辑的：

def copy_directory_recursive(self, srcPath, dstPath):

    dirAndFileList = os.listdir(srcPath)
    dirList = []
    fileList = []
    for i in dirAndFileList:
        if os.path.isdir(os.path.join(srcPath, i)):
            dirList.append(i)
        elif os.path.isfile(os.path.join(srcPath, i)):
            fileList.append(i)
    dirList.sort()
    fileList.sort()

    for directory in dirList:
        # if qItem.HasCancelled(): #If user has cancelled  the copy, quit
        #     break
        os.mkdir(os.path.join(dstPath, directory))
        newSrc = os.path.join(srcPath, directory)
        newDst = os.path.join(dstPath, directory)
        # Call itself to do move into the newly created subfolder and
        # repeat...
        self.copy_directory_recursive(newSrc, newDst)
    for file in fileList:
        # if qItem.HasCancelled(): #If user has cancelled the copy, quit
        #     break
        # Copy the file
        shutil.copyfile(
            os.path.join(srcPath, file), os.path.join(dstPath, file))
        self.filesCopied += 1
        # Feedback to the progress bar of the queue Item
        self.update()

Answer 1

您可以使用copytree发出的shutils来电并继续更新进度。一个例子：

def update(self):
    proportionDone = self.filesCopied/float(self.totalFiles)
    # Do whatever other work necessary here to show the progress bar
    print "I'm %.2f percent done!" % (proportionDone * 100)

def progress(self, path, names):
    self.filesCopied += len(names)
    self.update()
    return []

def copy_directory_recursive(self, srcPath, dstPath):
    self.filesCopied = 0
    self.totalFiles = 0

    for root, dirs, files in os.walk(srcPath):
        self.totalFiles += len(files) + len(dirs)

    shutil.copytree(srcPath, dstPath, ignore=self.progress)

使用python复制后，.app在OS X上不再可打开

1 个答案: