UnicodeDecodeError: 'charmap' codec can't decode byte ...
character maps to <undefined>

UnsupportedOperation: detach

Shouldn't be necessary in modern interpreters?

So it doesn't display at all

An address of the form `Avenue U &, E 33rd St` was causing
ExpatError: not well-formed (invalid token)

Because XML requires it to be encoded as &

Each new file was continuing the sequence from the last one

(The Document ID is not affected, though.  Still need to completely
restart interpreter to make that repeatable from one KML to the next?)

Saved Places format:

```json
{'geometry': {'coordinates': [...], 'type': 'Point'},
 'properties': {'Google Maps URL': '...',
  'Location': {'Address': '...',
   'Business Name': '...',
   'Country Code': 'US',
   'Geo Coordinates': {'Latitude': '...', 'Longitude': '...'}},
  'Published': '2018-05-02T01:46:02Z',
  'Title': '...',
  'Updated': '2018-05-02T01:46:02Z'},
 'type': 'Feature'}
```

Labeled Places format:

```json
{'geometry': {'coordinates': [...], 'type': 'Point'},
 'properties': {'address': '...',
  'name': 'Home'},
 'type': 'Feature'}
```

So you can it from the command line

Actually neither is true of original .json file.  This must be a Python
simplekml issue?  Names are already encoded but addresses are not?