PyODBC syntax error with attempted CSV file insertion - sql

Question

for fileName in fileNames:
with open(fileName, mode="rt", encoding="utf-8", newline="") as csvfile:
csvFile = csv.reader(csvfile, delimiter=',')
header = next(csvFile)
headers = map((lambda x: x.strip()), header)
insert = 'INSERT INTO TEST ('.format(tableChoice) + ', '.join(headers) + ') VALUES '
for row , record in enumerate(csvFile, start=1):
values = map((lambda x: "'"+x.strip()+"'"), record)
myCursor.execute(insert +'('+ ', '.join(values) +');' )
cnxn.commit()
I get the below error when I reach the execute line in the script. I just need the data extracted from the csv to be inserted into the database, row by row. Anyone know what's causing the error?
ProgrammingError: ('42000', "[42000] [Microsoft][ODBC SQL Server Driver][SQL Server]Incorrect syntax near '-'. (102) (SQLExecDirectW)")
Edit:
The SQL query string is as follows:
INSERT INTO TEST (this, that, those) VALUES ('1', '11', '111');
INSERT INTO TEST (this, that, those) VALUES ('2', '22', '222');
INSERT INTO TEST (this, that, those) VALUES ('3', '33', '333');

Answer 1

Likely issue is due to special characters in your column names such as - which requires wrapping in square brackets to escape in SQL Server. Additionally, consider using consistent Python string formatting and csv.DictReader to build a parameterized query followed by executemany for insertion:
for fileName in fileNames:
with open(fileName, mode="rt", encoding="utf-8", newline="") as csvfile:
reader = csv.DictReader(f)
data = [row for row in reader]
# BUILD SQL WITH [...] ESCAPED COLUMNS AND ? PARAM PLACEHOLDERS
sql = "INSERT INTO [Test] ([{cols}]) VALUES ({prms})"
sql = sql.format(cols="], [".join(map(lambda x: x.strip(), data[0].keys())),
prms=", ".join(['?'] * len(data[0])))
# APPEND ALL ROWS AND BIND PARAMS
myCursor.executemany(sql, [list(d.values()) for d in data])
cnxn.commit()