我刚刚在一个名为“temp”的文件上测试了以下内容，该文件已更改为“temp_Sep-15-14-08：42：57”

FilePath = 'temp' # replace the temp with your file path/name
modifiedTime = os.path.getmtime(FilePath) 

timeStamp =  datetime.datetime.fromtimestamp(modifiedTime).strftime("%b-%d-%y-%H:%M:%S")
os.rename(FilePath,FilePath+"_"+timeStamp)

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这应该可以做到：

timestamp = (datetime.fromtimestamp(modifiedTime).strftime("%b-%d-%y-%H:%M:%S"))
newName = 'c:\\syncwork\\ace\\files\\ESAL_P\\Backup\\ESAL_P.txt.' + timestamp

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基于您已经拥有的避免重复代码和增加可用性的解决方案，我建议使用path库：

import os
from pathlib import Path

# create the filename as a path
filename = Path("C:\\SyncWork\\ACE\\Files\\ESAL_P\\ESAL_P.txt")

# derive the name of the backup folder from the origin and create it if necessary
target_directory = filename.parent / 'Backup'
if not target_directory.is_dir():
    print(f'Creating directory {target_directory}')
    os.mkdir(target_directory)

# this is the original part creating the timestamp
modified_time = os.path.getmtime(filename)
timestamp = datetime.fromtimestamp(modified_time).strftime("%b-%d-%Y_%H.%M.%S")

# build the target name from the original name, the timestamp and the original extension
target_file = target_directory / f'{filename.stem}_{timestamp}{filename.suffix}'
print(target_file)
os.rename(filename, target_file)

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这种方法的优点是适用于任何扩展，并且更安全。它看起来更长，但是如果你去掉注解，它就和你的一样长了：

filename = Path("C:\\SyncWork\\ACE\\Files\\ESAL_P\\ESAL_P.txt")
target_directory = filename.parent / 'Backup'

modified_time = os.path.getmtime(filename)
timestamp = datetime.fromtimestamp(modified_time).strftime("%b-%d-%Y_%H.%M.%S")

target_file = target_directory / f'{filename.stem}_{timestamp}{filename.suffix}'
print(target_file)
os.rename(filename, target_file)

型
希望你觉得有用。