KeyError while trying to connect to database using pymssql - sql-server

Question

The below code tries to connect to a mssql database using pymssql. I have a CSV file and I am trying to push all the rows into a single data table in the mssql database. I am getting a 'KeyError' when I try to execute the code after opening the CSV file.
import csv
import pymssql
conn = pymssql.connect(host="host name",
database="dbname",
user = "username",
password = "password")
cursor = conn.cursor()
if(conn):
print("True")
else:
print("False")
with open ('path to csv file', 'r') as f:
reader = csv.reader(f)
columns = next(reader)
query = "INSERT INTO Marketing({'URL', 'Domain_name', 'Downloadables', 'Text_without_javascript', 'Downloadable_Link'}) VALUES ({%s,%s,%s,%s,%s})"
query = query.format(','.join('[' + x + ']' for x in columns), ','.join('?' * len(columns)))
cursor = conn.cursor()
for data in reader:
cursor.execute(query, tuple(data))
cursor.commit()
The below is the error that I get:
KeyError: "'URL', 'Domain_name', 'Downloadables', 'Text_without_javascript', 'Downloadable_Link'"
Using to_sql
file_path = "path to csv"
engine = create_engine("mssql://user:password#host/database")
df = pd.read_csv(file_path, encoding = 'latin')
df.to_sql(name='Marketing',con=engine,if_exists='append')
Output:
InterfaceError: (pyodbc.InterfaceError) ('IM002', '[IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified (0) (SQLDriverConnect)')

Answer 1

I tried everything, from converting the parameters which were being passed to a tuple, passing it as is, but didn't help. Below is the code that helped me fix the issue:
with open ('path to csv file', 'r') as f:
for row in f:
reader = csv.reader(f)
# print(reader)
columns = next(reader)
# print(columns)
cursor = conn.cursor()
for data in reader:
# print(data)
data = tuple(data)
# print(data)
query = ("INSERT INTO Marketing(URL, Domain_name, Downloadables, Text_without_javascript, Downloadable_Link) VALUES (%s,%s,%s,%s,%s)")
parameters = data
# query = query.format(','.join('?' * len(columns)))
cursor.execute(query, parameters)
conn.commit()
Note: The connecting to the database part remains as in the question.