How to store mySQL query result into pandas DataFrame with pymysql?

Question

I'm trying to store a mySQL query result in a pandas DataFrame using pymysql and am running into errors building the dataframe. Found a similar question here and here, but it looks like there are pymysql-specific errors being thrown:

import pandas as pd
import datetime
import pymysql

# dummy values 
connection = pymysql.connect(user='username', password='password', databse='database_name', host='host')

start_date = datetime.datetime(2017,11,15)
end_date = datetime.datetime(2017,11,16)

try:
    with connection.cursor() as cursor:
    query = "SELECT * FROM orders WHERE date_time BETWEEN %s AND %s"

    cursor.execute(query, (start_date, end_date)) 

    df = pd.DataFrame(data=cursor.fetchall(), index = None, columns = cursor.keys())
finally:
    connection.close()

returns: AttributeError: 'Cursor' object has no attribute 'keys'

If I drop the index and columns arguments:

try:
    with connection.cursor() as cursor:
    query = "SELECT * FROM orders WHERE date_time BETWEEN %s AND %s"

    cursor.execute(query, (start_date, end_date)) 

    df = pd.DataFrame(cursor.fetchall())
finally:
    connection.close()

returns ValueError: DataFrame constructor not properly called!

Thanks in advance!

Answer 1

Use Pandas.read_sql() for this:

query = "SELECT * FROM orders WHERE date_time BETWEEN ? AND ?"
df = pd.read_sql(query, connection,  params=(start_date, end_date))