Add script to convert lecture dates to iCal

requirements.txt

-jupyter
-jupyter-cache
+beautifulsoup4
+aiohttp
+icalendar
 intake
-xarray
 intake-xarray
-requests
-aiohttp
-zarr
+jupyter
+jupyter-cache
+markdown2
 matplotlib
 pyyaml
-beautifulsoup4
-markdown2
+requests
+xarray
+zarr

scripts/md2ical.py

+#!/usr/bin/env python3
+import argparse
+
+import markdown2
+from bs4 import BeautifulSoup
+from icalendar import Calendar, Event
+from datetime import datetime
+
+
+def extract_lecture_dates(markdown_file, output_file):
+    with open(markdown_file, "r") as file:
+        html_content = markdown2.markdown(file.read(), extras=["tables"])
+
+    cal = Calendar()
+    cal.add("prodid", "-//md2ical//Generic Software Skills Lectures//EN")
+    cal.add("version", "2.0")
+    cal.add("x-wr-calname", "GSS Lectures")
+
+    soup = BeautifulSoup(html_content, "html.parser")
+    for table_entry in soup.findAll("tr")[1:]:
+        date, title, lecturers = [e.contents[0] for e in table_entry.findAll("td")]
+
+        event = Event()
+        event.add("summary", f"{title} ({lecturers})")
+        event.add("uid", f"{title}+{lecturers}".replace(" ", "+").replace(",", ""))
+        event.add("dtstamp", datetime.fromisoformat(f"{date}T1100Z"))
+        event.add("dtstart", datetime.fromisoformat(f"{date}T1100Z"))
+        event.add("dtend", datetime.fromisoformat(f"{date}T1300Z"))
+        event.add("location", "Geomatikum, Room 1536a")
+        cal.add_component(event)
+
+    with open(output_file, "wb") as f:
+        f.write(cal.to_ical())
+
+
+def main():
+    parser = argparse.ArgumentParser(
+        prog="md2ical",
+        description="Convert a Markdown calendar table to an iCal calendar.",
+    )
+    parser.add_argument("-f", "--filename", required=True)
+    parser.add_argument("-o", "--output", required=True)
+
+    args = parser.parse_args()
+
+    extract_lecture_dates(args.filename, args.output)
+
+
+if __name__ == "__main__":
+    main()