I am trying to do a time counter in python using QTime and show this time in a QLabel using PyQt. I need to do this, to show how many time has passed since my program started to work, using this format of time: 00:00:00. I read the docs of QTime and tried another code that I have searched for on the internet, but I can not make it work.
This is part of my code:
class MyApplication(QtGui.QApplication):
def __init__(self, *args, **kwargs):
super(MyApplication, self).__init__(*args, **kwargs)
self.t = QTime() #I start QTime at the same time
self.t.start() # the program starts.
self.label_1 = QtGui.QLabel("Time since the program started:")
self.time_label = QtGui.QLabel("00:00:00")
self.tmr = QTimer() #I use QTimer because I need it
#for another part of the code
self.tmr.timeout.connect(self.clock)
def clock(self):
self.m = 0
self.elapsed = self.t.elapsed()
self.s = int((self.elapsed)/1000)
if self.s == 60:
self.m += 1
self.s = 0
self.time_sec = str(self.s)
self.time_min = str(self.m)
self.time = self.time_min + ":" + self.time_sec
self.time_label.setText(self.time) #I show the time in this QLabel()
When I build this, I get this format of time: 0:0 and after 60 seconds (it shows the seconds) I get this result: 1:0, and nothing else happens.
How can I make the time counter that I need with this format: 00:00:00. Can I do it using QTimer? Hope you can help me.
Thanks to @amicitas and @linusg answer, I´ve tried the datetime module, and wrote this simple code:
class MyApplication(QtGui.QApplication):
def __init__(self, *args, **kwargs):
super(MyApplication, self).__init__(*args, **kwargs)
self.t0 = datetime.now()
self.tmr = QTimer()
self.tmr.timeout.connect(self.clock)
def.clock(self):
self.t1 = datetime.now()
self.hour = self.t1.hour - self.t0.hour
self.minute = self.t1.minute - self.t0.minute
self.second = self.t1.second - self.t0.second
print self.hour, self.minute, self.second
But, when I build this, at the moment the counter reaches 45 seconds, it turns 45 to -15 and "1 minute" appears. This is:
When it reaches 0:0:44, it turns to 0:1:-15.
What could be the problem? And how can I show the time format that I need? This is 00:00:00. Hope you can help me.
I have written and tested the following code for you:
from datetime import datetime
import time
if __name__== '__main__':
initTimeObj = datetime.now()
nullRef = datetime(initTimeObj.year, initTimeObj.month, initTimeObj.day, 0, 0, 0)
print("Initial time:")
print(str(initTimeObj.hour) + ':' + str(initTimeObj.minute) + ':' + str(initTimeObj.second))
print("")
while(True):
time.sleep(1)
myDiff = datetime.now() - initTimeObj
myTimeObj = nullRef + myDiff
print(str(myTimeObj.hour) + ':' + str(myTimeObj.minute) + ':' + str(myTimeObj.second))
# Now you get a counting as follows:
# 0:0:1
# 0:0:2
# 0:0:3
# ...
# 0:0:59
# 0:1:0
# 0:1:1
# 0:1:2
# ...
This code does exactly what you need. It starts counting from 0:0:0and continues doing so. Some more tweaks might be necessary if you really want to have a double-digit format, like 00:00:00. If you want, I can look into that further.
I hope this helped you out. Please let me know if it worked for you.