Here is a simple example of source code with PyQt6 and QCalendarWidget to create a calendar. You click on the date and enter a note. This is saved in a file with the date time ... and the note. When you reopen the script, it opens in notepad and the saved notes. Obviously it is a simple example but you can improve it with databases, make a note management, encrypt it, link it to an external database, etc.
import sys
import csv
import os
import subprocess
from datetime import datetime
from PyQt6.QtWidgets import (
QApplication, QWidget, QVBoxLayout, QCalendarWidget,
QInputDialog, QMessageBox
)
from PyQt6.QtCore import QDate
CSV_FILE = "note.csv"
class CalendarApp(QWidget):
def __init__(self):
super().__init__()
self.setWindowTitle("Calendar cu notițe")
self.resize(400, 300)
self.layout = QVBoxLayout()
self.setLayout(self.layout)
self.calendar = QCalendarWidget()
self.calendar.clicked.connect(self.adauga_nota)
self.layout.addWidget(self.calendar)
# Dicționar pentru notițe
self.note = {}
# La pornire, citește CSV și deschide în Notepad
self.incarca_note()
def adauga_nota(self, date: QDate):
zi = date.toString("yyyy-MM-dd")
text, ok = QInputDialog.getText(self, "Adaugă notiță",
f"Introdu text pentru {zi}:")
if ok and text.strip():
timestamp = datetime.now().strftime("%Y-%m-%d %H:%M")
self.note[timestamp] = text.strip()
QMessageBox.information(self, "Salvat",
"Notița a fost adăugată.")
def incarca_note(self):
if os.path.exists(CSV_FILE):
try:
with open(CSV_FILE, "r", newline="", encoding="utf-8") as f:
reader = csv.reader(f)
for row in reader:
if len(row) == 2:
self.note[row[0]] = row[1]
# Deschide în Notepad
subprocess.Popen(["notepad.exe", CSV_FILE])
except Exception as e:
QMessageBox.warning(self, "Eroare",
f"Nu pot citi fișierul CSV:\n{e}")
def closeEvent(self, event):
try:
with open(CSV_FILE, "w", newline="", encoding="utf-8") as f:
writer = csv.writer(f)
for timestamp, text in self.note.items():
writer.writerow([timestamp, text])
except Exception as e:
QMessageBox.warning(self, "Eroare",
f"Nu pot salva fișierul CSV:\n{e}")
event.accept()
if __name__ == "__main__":
app = QApplication(sys.argv)
window = CalendarApp()
window.show()
sys.exit(app.exec())
... this is the result:
