python - 根据文件类型为文件名添加 LasWriteTime 前缀

Question

尝试仅将不同相机型号的上次写入时间(上次文件内容修改时间)时间戳附加到选择媒体文件类型的文件名中。模式为:YYYYMMDD_HHMMSS__origfilename.ext。

例如，重命名之前和之后:

origfilename.jpg             >   20011231_235959__origfilename.jpg
origfilename2.png            >   origfilename2.png     #.txt is not a "media_file"

时间戳的文件类型在嵌套字典中定义，并使用 config[camID]["media_file"] 为每种相机类型调用:

代码(最后一行给出语法错误):

config = {
    'nd5': {},
    'g7': {},
    'alpha9': {},
}
config['nd5']['media_file'] = ('nef', 'jpg', 'avi')
config['g7']['media_file'] = ('cr2', 'jpg', 'mp4')
config['alpha9']['media_file'] = ('jpg')    

root = "."     
def get_last_write_time(filename):
    st = os.stat(filename)
    convert_time_to_human_readable = time.strftime("%Y%m%d_%H%M%S", time.localtime(st.st_mtime))
    return convert_time_to_human_readable

timestr = convert_time_to_human_readable

for camID in config:
    for dir in next(os.walk(root))[1]:
        if dir.endswith(camID):
            for path, dirs, files in os.walk(os.path.join(root, dir)):
                for f in files:
                    if any([f.lower().endswith(x) for x in config[camID]["media_file"]]):
                        os.rename(os.path.join(path, f) 
                        os.path.join(path, "%s" % timestr+'_'+f))

显示=camID(=key1，目录名称中最后一个=之后的字符串)和要附加时间戳的文件类型的树:

└───CWD
    ├───001=nd5
    │   └───DCIM
    │       ├───125NCD5     ('nef', 'jpg', 'avi')
    │       ├───126NCD5     ('nef', 'jpg', 'avi')
    │       └───127NCD5     ('nef', 'jpg', 'avi')
    ├───002=nd5
    │   └───DCIM
    │       ├───201NCD5     ('nef', 'jpg', 'avi')
    │       ├───202NCD5     ('nef', 'jpg', 'avi')
    │       └───203NCD5     ('nef', 'jpg', 'avi')
    ├───003=g7
    │   └───DCIM
    │       ├───112___09    ('cr2', 'jpg', 'mp4')
    │       └───112___10    ('cr2', 'jpg', 'mp4')
    └───004=alpha9
        ├───DCIM
        │   └───101MSDCF    ('jpg')
        └───PRIVATE
            ├───AVCHD
            │   └───BDMV
            │       ├───CLIPINF
            │       ├───PLAYLIST
            │       └───STREAM      
            └───SONY

Answer 1

您的代码中有一些小拼写错误
1. 第 5 行应该是 'g7' 而不是 'ng7'
2. convert_time_to_ human_可读仅在get_last_write_time(filename)中定义，不能在其外部使用。
3. 倒数第二行缺少 ,。
4. 不要在最后一行使用 timestr，而应该使用 get_last_write_time(f)

import os

config = {
    'nd5': {},
    'g7': {},
    'alpha9': {},
}
config['nd5']['media_file'] = ('nef', 'jpg', 'avi')
config['g7']['media_file'] = ('cr2', 'jpg', 'mp4')
config['alpha9']['media_file'] = ('jpg')    

root = "."     
def get_last_write_time(filename):
    st = os.stat(filename)
    convert_time_to_human_readable = time.strftime("%Y%m%d_%H%M%S", time.localtime(st.st_mtime))
    return convert_time_to_human_readable

for camID in config:
    for dir in next(os.walk(root))[1]:
        if dir.endswith(camID):
            for path, dirs, files in os.walk(os.path.join(root, dir)):
                for f in files:
                    if any([f.lower().endswith(x) for x in config[camID]["media_file"]]):
                        os.rename(os.path.join(path, f),os.path.join(path, "%s" % get_last_write_time(os.path.join(path, f))+'_'+f))