FilenotFoundError即使需要在重命名之前通过条件

Question

我正在编写一个脚本，该脚本应该自动化大量PDF文件的移动和重命名。这些文件最初是在临时目录中下载的，最初下载的路径将保存在JSON文件中。文件肯定存在于我在脚本中指示的源位置中，甚至使用相同的变量，这些变量通过在尝试重命名之前检查文件存在的条件，我仍然会得到filenotfounderror。

我的代码：

def distribute(source, title_journal, year_of_issue, volume_and_issue, title): # title_journal, year_of_issue and volume_and_issue are just strings of directory names

    root_destination = os.path.join(package_path, "Downloads") # package_path = working directory (os.getcwd()), "Downloads" = parent directory where files will be moved
    journal_destination = os.path.join(root_destination, title_journal) 
    year_destination = os.path.join(journal_destination, year_of_issue)
    file_destination = os.path.join(volume_destination, title)
    volume_destination = os.path.join(year_destination, volume_and_issue)
    current_path_to_file = source
    file_destination = os.path.join(volume_destination, f”{title}.pdf”)
    os.rename(current_path_to_file, file_destination)


current_path = Path(dictionary["Download_path"]) # is an absolute path to the file's current location
    if current_path.is_file():
        distribute(current_path, journal, year, volume, next(iter(dictionary))) 

错误的示例（编辑以在我的脚本中显示变量）：

FileNotFoundError: [Errno 2] No such file or directory: '/Users/me/Documents/run1/Downloads/Temporary_folder/09567976211043428.pdf' -> '/Users/me/Documents/Downloads/journal_title/year_of_issue/volume_and_issue/new_file_name'

Answer 1

假设/user/me/documents/downloads已经存在，错误是在告诉您，该目录中的一个或多个目录jeramy_title/year_of_issue/lay_of_issue/volume_and_issue不存在，并且不会隐含地创建。

通常的解决方案是用os.makedirs nocation_ok = true 确保存在目标目录结构。

    file_destination = os.path.join(volume_destination, f"{title}.pdf")
    os.makedirs(volume_destination, exist_ok=True) # <------
    os.rename(current_path_to_file, file_destination)

切线，还请注意，我必须将卷曲的“印刷”双引号更改为适当的ASCII双引号。