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
Python3
# importing librariesfrom PyQt5.QtWidgets import *from PyQt5 import QtCore, QtGuifrom PyQt5.QtGui import *from PyQt5.QtCore import *import datetimeimport sysclass 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 appApp = QApplication(sys.argv)# create the instance of our Windowwindow = Window()# start the appsys.exit(App.exec()) |
Output :
