Cryptic error a tag contains a newline

[salty-horse]

Using influxdb package version 5.2.0.

When calling write_points with a tag string that contains a newline, the client fails on an error that doesn't mention the tag:

from influxdb import InfluxDBClient
json_body = [
    {
        "measurement": "cpu_load_short",
        "tags": {
            "host": "server01",
            "region": "us-west\n" # Note the newline here
        },
        "time": "2009-11-10T23:00:00Z",
        "fields": {
            "value": 0.64
        }
    }
]
client = InfluxDBClient('localhost', 8086, 'root', 'root', 'example')
client.create_database('example')
client.write_points(json_body)

InfluxDBClientError: 400: {"error":"unable to parse 'cpu_load_short,host=server01,region=us-west': missing fields\nunable to parse 'value=0.64 1257894000000000000': invalid field format"}

Note that the error doesn't mention the newline at all.

If a newline is legal in a tag name, it may be serializing the command to influx incorrectly. If a newline isn't legal, the error should be clearer.