generating an ics file from a tab delimited table

README.md

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+I wanted to generate a big ical file with recurring events for all birthdays in my family from a spreadsheet we put together, so I wrote this script. No python library worked well for this, so I had to generate the ical manually.

parse.py

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+import pytz
+from datetime import datetime, timedelta, date
+
+# copied from a spreadsheet (so it's tab separated)
+bdays = """
+
+lastname 	firstname	07-May
+lastname 	firstname	07-May
+lastname	firstname	07-May
+lastname	firstname	07-May
+lastname 	firstname	07-May
+lastname	firstname	07-May
+
+
+""".strip().split('\n')
+
+months = [
+    "Jan",
+    "Feb",
+    "Mar",
+    "Apr",
+    "May",
+    "Jun",
+    "Jul",
+    "Aug",
+    "Sep",
+    "Oct",
+    "Nov",
+    "Dec"
+]
+
+months = {m : i for i, m in enumerate(months)}
+
+bdays = [[cell.strip() for cell in line.split("\t")] for line in bdays]
+
+tzname = "Europe/Warsaw"
+tz = pytz.timezone(tzname)
+
+
+cal = """
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:Birthdays autogenerated
+""".strip()
+
+for sname, fname, bday_date in bdays:
+    event = "BEGIN:VEVENT"
+    day, month = bday_date.split('-')
+    print(f'{sname:<16}|{fname:<16}|{day:>02}.{months[month]+1:>02}')
+
+    event += "\nUID:" + str((fname+sname+bday_date).__hash__())
+    event += "\nDTSTAMP;TZID=" + tzname + ":" + datetime.now(tz=tz).strftime("%Y%m%dT%H%M%S")
+    event += "\nDTSTART;VALUE=DATE:" + f'{datetime.now().year}{months[month]+1:>02}{day:>02}'
+    # event += "\n"
+    event += "\nSUMMARY:" + f'🎂 {fname} {sname} birthday!'
+    event += "\nRRULE:FREQ=YEARLY"
+    event += "\nEND:VEVENT"
+    print(event)
+    cal += "\n" + event
+
+cal += "\nEND:VCALENDAR"
+
+with open("birthday_calendar.ical", 'w', encoding='utf-8') as f:
+    f.write(cal)