我正在研究一个python脚本,当我尝试使用扩展列表作为copytree的ignore_patterns时抛出TypeError:unhashable类型:'list'。我不确定,1。为什么这不起作用,2。如何修复它。
# allFileTypes is the list of all extensions in source_dir
# grabbed with function getFileExtList
allFileTypes = getFileExtList(source_dir)
# delete the blank file type
del allFileTypes[0]
# Open a window to choose the files to copy
copyList = eg.multchoicebox(msg='Select the file types to copy',
choices=(allFileTypes))
# List comprehension to make an ignore list for copytree
ignoreList = [x for x in allFileTypes if x not in copyList]
# Open a window to choose the destination directory
root_dir = eg.diropenbox(title='Choose Destination Directory')
# Take the basename of source_dir adding it to root_dir or os.mkdir will
# will break on the existing directory
dest_dir = os.path.join(root_dir, os.path.basename(source_dir))
# copytree everything from the source_dir to the dest_dir ignoring
# all files types not chosen from the list
copytree(source_dir, dest_dir, ignore=ignore_patterns(ignoreList))
答案 0 :(得分:0)
copytree(source_dir, dest_dir, ignore=ignore_patterns(*ignoreList))
ignore_patterns
接收所有模式作为位置参数,而不是列表。