import influxdb

client = influxdb.DataFrameClient(host='localhost', port=18086)
client.query("select * from foo", database="test")

InfluxDBClientError                       Traceback (most recent call last)
<ipython-input-11-85af990ed2e6> in <module>()
      2 
      3 client = influxdb.DataFrameClient(host='localhost', port=18086)
----> 4 client.query("select * from foo", database="test")

~/.local/python/lib/python3.6/site-packages/influxdb/_dataframe_client.py in query(self, query, params, epoch, expected_response_code, database, raise_errors, chunked, chunk_size, dropna)
    176                           chunked=chunked,
    177                           chunk_size=chunk_size)
--> 178         results = super(DataFrameClient, self).query(query, **query_args)
    179         if query.strip().upper().startswith("SELECT"):
    180             if len(results) > 0:

~/.local/python/lib/python3.6/site-packages/influxdb/client.py in query(self, query, params, epoch, expected_response_code, database, raise_errors, chunked, chunk_size)
    403             ResultSet(result, raise_errors=raise_errors)
    404             for result
--> 405             in data.get('results', [])
    406         ]
    407 

~/.local/python/lib/python3.6/site-packages/influxdb/client.py in <listcomp>(.0)
    402         results = [
    403             ResultSet(result, raise_errors=raise_errors)
--> 404             for result
    405             in data.get('results', [])
    406         ]

~/.local/python/lib/python3.6/site-packages/influxdb/resultset.py in __init__(self, series, raise_errors)
     23 
     24         if self.error is not None and raise_errors is True:
---> 25             raise InfluxDBClientError(self.error)
     26 
     27     @property

InfluxDBClientError: database name required