TDengine/docs/examples/python/develop_tutorial.py

from dotenv import load_dotenv

# read .env file from current working directory
load_dotenv()

# ANCHOR: connect
import taosrest
import os

url = os.environ["TDENGINE_CLOUD_URL"]
token = os.environ["TDENGINE_CLOUD_TOKEN"]

try:
    conn = taosrest.connect(url=url, token=token)
    # test the connection by getting version info
    print("TDengine version: ", conn.server_info)
except Exception as e:
    print(str(e))
# ANCHOR_END: connect
# ANCHOR: insert
# create super table
conn.execute("CREATE STABLE IF NOT EXISTS power.meters (ts TIMESTAMP, current FLOAT, voltage INT, phase FLOAT) TAGS (location BINARY(64), groupId INT)")
# insert multiple rows into multiple tables at once. subtables will be created automatically.
affected_row = conn.execute("""
    INSERT INTO 
    power.d1001 USING power.meters TAGS('California.SanFrancisco',1) VALUES 
                            ('2018-10-03 14:38:10.000', 10.30000, 219, 0.31000) 
                            ('2018-10-03 14:38:20.000', 12.60000, 218, 0.33000) 
                            ('2018-10-03 14:38:30.800', 12.30000, 221, 0.31000)
    power.d1002 USING power.meters TAGS('California.SanDiego',2) VALUES 
                            ('2018-10-03 14:38:16.650', 10.30000, 218, 0.25000)
        """)
print("affected_row", affected_row)  # 4
# ANCHOR_END: insert
# ANCHOR: query
result = conn.query("SELECT ts, current FROM power.meters LIMIT 2")
# ANCHOR_END: query

# ANCHOR: fields
print(result.fields)
# output: [{'name': 'ts', 'type': 'TIMESTAMP', 'bytes': 8}, {'name': 'current', 'type': 'FLOAT', 'bytes': 4}]
# ANCHOR_END: fields

# ANCHOR: rows
print(result.rows)
# output: 2
# ANCHOR_END: rows
# ANCHOR: iter
for row in result:
    print(row)
# output:
# [datetime.datetime(2018, 10, 3, 14, 38, 5), 10.3]
# [datetime.datetime(2018, 10, 3, 14, 38, 10), 10.3]
# ANCHOR_END: iter