In this article we will see how we can create a age nearest birthday calculator. Age nearest calculator is the calculator which is used to get the age nearest to the birth date. Below is how the age nearest calculator looks like 
Concept : We can get the age nearest birthday by getting the difference between the birth date and the present date with the help of python datetime objects will keep count of leap years and we can get the number of days between the dates. Then these days can be divided with the 365.32422 to get the years, then the round value of years will be the age nearest birthday
GUI Implementation Steps : 1. Create a heading label that display the calculator name 2. Create label to show user to select the birth date 3. Create a QCalendarWidget object for user to select the birth date 4. Create a push button to calculate the nearest age 5. Create a label to show the calculated age 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 the present date 4. Get the day, month and year from both the dates 5. Create a datetime.date object for both the dates 6. Get the difference from both the dates and get the days 7. Divide the days with 365.2422(due to leap year) to get total years 8. Get the round value of the years and show this 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 Nearest Birthday 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", self) # setting properties label b_label.setAlignment(Qt.AlignCenter) b_label.setGeometry(50, 105, 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, 130, 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 push button calculate = QPushButton("Calculate Time", self) # setting geometry to the push button calculate.setGeometry(125, 340, 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, 400, 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 today date current = QDate.currentDate() # getting year and month day of current day current_year = current.year() current_month = current.month() current_day = current.day() # converting dates into date object birth_date = datetime.date(birth_year, birth_month, birth_day) current_date = datetime.date(current_year, current_month, current_day) # getting difference in both the dates difference = current_date - birth_date # getting days from the difference difference = difference.days # getting years from the difference years = difference / 365.2422 # getting round value of years years = round(years) # setting this value with the help of label self.result.setText("Closest Age is : " + str(years))# create pyqt5 appApp = QApplication(sys.argv)# create the instance of our Windowwindow = Window()# start the appsys.exit(App.exec()) |
Output :
