How to export MS Access table into a csv file in Python using e.g. pypyodbc

I have been trying to export a table from MS Access database into a csv file using pypydobc - using fetchone function is taking forever e.g. 200,000 rows are taking about 5 minutes to print. If fetchone was quicker I could have just printed the results into a csv file but it's taking too long. This is what I tried so far:

import pypyodbc
pypyodbc.lowercase = False
conn = pypyodbc.connect(
    r"Driver={Microsoft Access Driver (*.mdb, *.accdb)};" +
    r"Dbq=C:\temp\Temp_DB.accdb;")
cur = conn.cursor()
cur.execute("SELECT Column1, Column2, FROM Table1");
Col1 = []
Col2 = []
row = cur.fetchone()
while  row is not None:
    print(row)
    row = cur.fetchone()
    Col1.append(row.get("Column1"))
    Col2.append(row.get("Column2"))
cur.close()
conn.close()

Also, is there a documentation on all functions in pypyodbc which I have failed to find so far?