Update clock in program Python without creating new line

Question

I am creating a program for Raspberry Pi where, in Command Line, the program displays the date and time as shown below and I want to add a repeat or update so the date and time are current after the program begins. This code came off a online tutorial and I want to mess around with it and hit a dead end. I am currently learning Python.

#!/usr/bin/python

import time
now = time.strftime("%c")
print "current date and time " + time.strftime("%c")

because you need to delete `In [5]:`. It was just showing the work from ipython. All you need is `datetime.datetime.now()` and assign that for variable if you like. — Anton Protopopov, Dec 11 '15 at 08:13
'#!/usr/bin/python import time now = time.strftime("%c") print "current date and time " + time.strftime("%c") import datetime datetime.datetime.now() datetime.datetime.now() datetime.datetime(2015, 12, 11, 11, 0, 37, 518511)' it doesn't update — WickedJDG, Dec 11 '15 at 08:29
see edited answer. It doesn't updated because it's too quick, only microseconds could be displayed — Anton Protopopov, Dec 11 '15 at 08:34
Related: [python: how to overwrite the previous print to stdout](http://stackoverflow.com/questions/5419389/python-how-to-overwrite-the-previous-print-to-stdout) — GingerPlusPlus, Dec 11 '15 at 09:01
@AntonProtopopov, the code works but doesn't help with my dilemma. I am currently trying another way that has just occurred to me. Thanks anyway. — WickedJDG, Dec 11 '15 at 09:44
@J.Gill btw, you could accept an answer if it satisfied your question — Anton Protopopov, Dec 11 '15 at 16:22

score 2 · Answer 1 · answered Dec 11 '15 at 08:11

2

The following code will print time in the same place every second:

import time

while True:
    time.sleep(1.0)
    print("\r" + str(time.time()), end="")

answered Dec 11 '15 at 08:11

mirosval

6,671
3
32
46

I have tried the code separately and the equal sign in the final line is apparently a syntax error. – WickedJDG Dec 11 '15 at 09:35
Are you using python 2 or 3? – mirosval Dec 11 '15 at 15:42
I am using python 2.7 – WickedJDG Dec 22 '15 at 04:47

Anton Protopopov · Answer 2 · 2015-12-11T08:34:05.887

0

You could use datetime module:

import datetime
datetime.datetime.now()

In [5]: datetime.datetime.now()
Out[5]: datetime.datetime(2015, 12, 11, 11, 0, 37, 518511)

EDIT

Try to use following script

#!/usr/bin/python
import datetime
import time

a = datetime.datetime.now()
time.sleep(1)
b = datetime.datetime.now()
print(b-a)

edited Dec 11 '15 at 08:34

answered Dec 11 '15 at 08:00

Anton Protopopov

30,354
12
88
93

Would that update the time repeatedly until program is closed? – WickedJDG Dec 11 '15 at 08:01
Of course. You could try that several times in python console and will see the results – Anton Protopopov Dec 11 '15 at 08:02
Thank you. This helps very much. – WickedJDG Dec 11 '15 at 08:03
I have hit a slight problem. It keeps saying syntax error for line 3. Not sure if that is just me. – WickedJDG Dec 11 '15 at 08:07
@J.Gill could you post that line and edit question for that? – Anton Protopopov Dec 11 '15 at 08:09

score 0 · Answer 3 · edited May 23 '17 at 12:30

0

I think this has been answered before here:

You can use a trailing comma to avoid a newline being printed:

print "this should be",
print "on the same line"

edited May 23 '17 at 12:30

Community

1
1

answered Dec 11 '15 at 08:14

Johannes Jander

4,974
2
31
46

Update clock in program Python without creating new line

3 Answers3