In this article we will see how we can create calculator which tells how many seconds a person has lived. Below si how the calculator will look like
Concept : We can get the age in seconds by getting the difference between the birth date and the birth time with the present date and time with the help of python datetime objects, which will keep count of leap years and we can get the number of days and seconds between the dates. Then these days can be converted into seconds to get the total seconds count.
GUI Implementation Steps :
1. Create a heading label that display the calculator name
2. Create label to show user to select the birth date and the birth time
3. Create a QCalendarWidget object for user to select the birth date
4. Create a QTimeEdit object to get the birth time
5. Create a push button to calculate the age in seconds
6. Create a label to show the calculated age in seconds
Back-End Implementation :
1. Make the calendar future date block i.e set current date as maximum date
2. Add action to the push button
3. Inside the push button action get the date from the calendar and time from the QTimeEdit
4. Get the day, month and year from the date and hour and minute from the time edit
5. Create a datetime object for current date and the birth date
6. Get the difference from both the dates and get the days and seconds
7. Convert days into seconds and add it to the original seconds
8. Show the calculated seconds value through label
Below is the implementation
# importing libraries from PyQt5.QtWidgets import *
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import *
from PyQt5.QtCore import *
import datetime
import sys
class Window(QMainWindow):
def __init__( self ):
super ().__init__()
# setting title
self .setWindowTitle( "Python " )
# width of window
self .w_width = 400
# height of window
self .w_height = 500
# setting geometry
self .setGeometry( 100 , 100 , self .w_width, self .w_height)
# calling method
self .UiComponents()
# showing all the widgets
self .show()
# method for components
def UiComponents( self ):
# creating head label
head = QLabel( "Age in Seconds Calculator" , self )
head.setWordWrap( True )
# setting geometry to the head
head.setGeometry( 0 , 10 , 400 , 60 )
# font
font = QFont( 'Times' , 15 )
font.setBold( True )
font.setItalic( True )
font.setUnderline( True )
# setting font to the head
head.setFont(font)
# setting alignment of the head
head.setAlignment(Qt.AlignCenter)
# setting color effect to the head
color = QGraphicsColorizeEffect( self )
color.setColor(Qt.darkCyan)
head.setGraphicsEffect(color)
# creating a label
b_label = QLabel( "Select Birthday and Time" , self )
# setting properties label
b_label.setAlignment(Qt.AlignCenter)
b_label.setGeometry( 50 , 95 , 300 , 25 )
b_label.setStyleSheet( "QLabel"
"{"
"border : 1px solid black;"
"background : rgba(70, 70, 70, 25);"
"}" )
b_label.setFont(QFont( 'Times' , 9 ))
# creating a calendar widget to select the date
self .calendar = QCalendarWidget( self )
# setting geometry of the calendar
self .calendar.setGeometry( 50 , 120 , 300 , 180 )
# setting font to the calendar
self .calendar.setFont(QFont( 'Times' , 6 ))
# getting current date
date = QDate.currentDate()
# blocking future dates
self .calendar.setMaximumDate(date)
# creating a time edit object to receive time
self .time = QTimeEdit( self )
# setting properties to the time
self .time.setGeometry( 50 , 300 , 300 , 30 )
self .time.setAlignment(Qt.AlignCenter)
self .time.setFont(QFont( 'Times' , 9 ))
# creating a push button
calculate = QPushButton( "Calculate Time" , self )
# setting geometry to the push button
calculate.setGeometry( 125 , 360 , 150 , 40 )
# adding action to the calculate button
calculate.clicked.connect( self .calculate_action)
# creating a label to show percentile
self .result = QLabel( self )
# setting properties to result label
self .result.setAlignment(Qt.AlignCenter)
self .result.setGeometry( 50 , 420 , 300 , 60 )
self .result.setWordWrap( True )
self .result.setStyleSheet( "QLabel"
"{"
"border : 3px solid black;"
"background : white;"
"}" )
self .result.setFont(QFont( 'Arial' , 11 ))
def calculate_action( self ):
# getting birth date day
birth = self .calendar.selectedDate()
# getting year and month day of birth day
birth_year = birth.year()
birth_month = birth.month()
birth_day = birth.day()
# getting time of from the time edit
time = self .time.time()
# getting hour and seconds
hour = time.hour()
minute = time.minute()
# getting today date
current = QDate.currentDate()
# getting year and month day of current day
current = datetime.datetime.now()
# converting date into date object
birth_date = datetime.datetime(birth_year, birth_month, birth_day, hour, minute, 0 )
# getting difference in both the dates
difference = current - birth_date
# getting difference in days
days = difference.days
# setting seconds
seconds = difference.seconds
# converting days into second and adding them
seconds = seconds + days * 24 * 60 * 60
# setting this value with the help of label
self .result.setText( "Age in seconds : " + str (seconds))
# create pyqt5 app App = QApplication(sys.argv)
# create the instance of our Window window = Window()
# start the app sys.exit(App. exec ())
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Output :