print geojson of shrines in the historical map data provided by nihu https://www.nihu.jp/ja/publication/source_map

gen_shrine_list.py

import csv

template_body = """
{{
  "type": "FeatureCollection",
  "features": [{items}]
}}
"""

template_item = """
{{
  "type": "Feature",
  "geometry": {{
    "type": "Point",
    "coordinates": [{lng}, {lat}]
  }},
  "properties": {{
    "name": "{name}",
      "_markerType": "Icon",
      "_iconUrl": "https://maps.gsi.go.jp/portal/sys/v4/symbols/080.png",
      "_iconAnchor": [
        10,
        10
    ]
  }}
}}
"""

items = []
with open('地名.txt', encoding='utf-8') as f:
    reader = csv.reader(f)
    next(reader, None)
    for row in reader:
        #print(row[2])
        if row[2] == "12":
            items.append(template_item.format(name=row[1],lat=row[4],lng=row[5]))
print(template_body.format(items=",\n".join(items)))