An error occurred: 'pywintypes.datetime' object has no attribute 'astimezone'

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Expected behavior and actual behavior.
Steps to reproduce the problem.
Version of Python and pywin32

When I use pyinstaller to package the code into an executable program, I get an error when I run the executable, but not when I run the source file directly, error: "An error occurred: 'pywintypes.datetime' object has no attribute 'astimezone' ", the error raised by "win32file.SetFileTime(...)"

the test source code as bellow:

import win32file,pywintypes

def change_file_ctime(file_path,new_ctime_stamp):
    handle = win32file.CreateFile(file_path, win32file.GENERIC_WRITE,
                                win32file.FILE_SHARE_READ | win32file.FILE_SHARE_WRITE,
                                None, win32file.OPEN_EXISTING,
                                win32file.FILE_ATTRIBUTE_NORMAL, None)
    date_time = pywintypes.Time(new_ctime_stamp) 
    print(str(date_time.astimezone()))
    print(str(type(date_time)))
    print(str(dir(date_time)))
    if hasattr(date_time,"astimezone"):
        win32file.SetFileTime(File=handle, CreationTime=date_time,LastAccessTime=None,LastWriteTime=None,UTCTimes=False) 
    else:
        print("no astimezone")
    handle.close()

if __name__=="__main__":
        a=input("path：")
        b=float(input("time_stamp："))
        change_file_ctime(a,b)
        input("press any key...")

mhammond / pywin32

An error occurred: 'pywintypes.datetime' object has no attribute 'astimezone' #2164