How do I change the file creation date of a Windows file?
install pywin32 extension first https://sourceforge.net/projects/pywin32/files/pywin32/Build%20221/
import win32file
import pywintypes
# main logic function
def changeFileCreateTime(path, ctime):
# path: your file path
# ctime: Unix timestamp
# open file and get the handle of file
# API: http://timgolden.me.uk/pywin32-docs/win32file__CreateFile_meth.html
handle = win32file.CreateFile(
path, # file path
win32file.GENERIC_WRITE, # must opened with GENERIC_WRITE access
0,
None,
win32file.OPEN_EXISTING,
0,
0
)
# create a PyTime object
# API: http://timgolden.me.uk/pywin32-docs/pywintypes__Time_meth.html
PyTime = pywintypes.Time(ctime)
# reset the create time of file
# API: http://timgolden.me.uk/pywin32-docs/win32file__SetFileTime_meth.html
win32file.SetFileTime(
handle,
PyTime
)
# example
changeFileCreateTime('C:/Users/percy/Desktop/1.txt',1234567789)
I did not want to bring the whole pywin32
/ win32file
library solely to set the creation time of a file, so I made the win32-setctime
package which does just that.
pip install win32-setctime
And then use it like that:
from win32_setctime import setctime
setctime("my_file.txt", 1561675987.509)
Basically, the function can be reduced to just a few lines without needing any dependency other that the built-in ctypes
Python library:
from ctypes import windll, wintypes, byref
# Arbitrary example of a file and a date
filepath = "my_file.txt"
epoch = 1561675987.509
# Convert Unix timestamp to Windows FileTime using some magic numbers
# See documentation: https://support.microsoft.com/en-us/help/167296
timestamp = int((epoch * 10000000) + 116444736000000000)
ctime = wintypes.FILETIME(timestamp & 0xFFFFFFFF, timestamp >> 32)
# Call Win32 API to modify the file creation date
handle = windll.kernel32.CreateFileW(filepath, 256, 0, None, 3, 128, None)
windll.kernel32.SetFileTime(handle, byref(ctime), None, None)
windll.kernel32.CloseHandle(handle)
For advanced management (like error handling), see the source code of win32_setctime.py
.
Yak shaving for the win.
import pywintypes, win32file, win32con
def changeFileCreationTime(fname, newtime):
wintime = pywintypes.Time(newtime)
winfile = win32file.CreateFile(
fname, win32con.GENERIC_WRITE,
win32con.FILE_SHARE_READ | win32con.FILE_SHARE_WRITE | win32con.FILE_SHARE_DELETE,
None, win32con.OPEN_EXISTING,
win32con.FILE_ATTRIBUTE_NORMAL, None)
win32file.SetFileTime(winfile, wintime, None, None)
winfile.close()