Save / Log "Print Message" to file

Is there any way to still generate a timestamp at the end of the cycle?

in one line?

try:
    fl = open('/home/nkp/emc2/logfile', "a")
    fl.write(s.file + 12*' ' + time.ctime() + "\n")
    fl.close()
except :
    print "nkplogerror"

        try:
            fl = open('/home/nkp/emc2/logfile', "a")
            lnf = len(os.path.basename(s.file))
            fl.write(os.path.basename(s.file) + (28-lnf)*' ' + time.ctime() + "\n")       
            fl.close()        
        except :
            print "nkplogerror"

Thanks for the quick response.
I think I have unfortunately expressed myself unclearly.
I imagine it as follows:

I created the logfile in the directory /home/cnc/linuxcnc with the name logfile (and gave each user read&write rights) and then inserted the code snippet (for all amateurs like me: the axis.py file can be found in the path /usr/bin) in the Axis file adapted to my needs:

Also I found other events (Pause, Resume, Abort) I would like to log:
The only thing I am missing now is a way to log the time after a successful cycle run. Where would be the right place for this?

Best wishes

Jan

##############################################

    def update(self):
        .............
        .............
        ...........
        
        
        if vars.len_program.get():
            if self.stat.motion_line > (vars.len_program.get() - 4):
                vars.len_program.set(0)
                try:
                    fl = open('/home/nkp/emc2/logfile', "a")
                    fl.write("successful" + 18*' ' + time.ctime() + "\n")       
                    fl.close()        
                except :
                    print "nkplogerror"
                    
                    
         user_live_update()  
         
         
#######################################################         
         
vars = nf.Variables(root_window,         
         
         ....
         ....
         ....

    ("len_program", IntVar),
) 



###############################


    def task_run(*event):
        ...
        ...

        try:
            s.poll()
            count = 0
            for line in open(s.file).xreadlines(): count += 1
            vars.len_program.set(count)

            fl = open('/home/nkp/emc2/logfile', "a")
            lnf = len(os.path.basename(s.file))
            fl.write(os.path.basename(s.file) + (28-lnf)*' ' + time.ctime() + "\n")       
            fl.close()        
        except :
            print "nkplogerror"

Thank you for your effort. I have implemented the changes and tried them out. Everything works fine as long as no macro calls are in game.Unfortunately, since I use the remap command with macro call for my manual tool change, the current solution does not work: 
If the required tool (Tool 9) is not in the spindle at cycle start, only the file name of the tool change macro with timestamp appears in the log file. The success is not logged.
If the tool (tool 9) is already in the spindle, the start is logged with the actual file name. At the first tool change (tool 11) success is logged and then nothing more.

Here the G Code file I used for evaluation:

Best wishes

Jan

need your file remap