Question

I’m using sqlite3 in a Python script to extract data from a client’s spreadsheet. My client is planning to add on to the spreadsheet, so my sqlite code should generate its columns based on the headers I extract from the first line. How do I do this? This is my naive attempt:

import sqlite3
conn = sqlite3.connect('./foo.sql')
c = conn.cursor()
for line in file:
  if line[0] == 'firstline':
    # Below is the line in question
    c.execute(""" create table if not exists bar(?, ? ,?); """, lineTuple)
  else:
    c.execute(""" insert into bar values (?, ?, ?); """, lineTuple)

Answer 1

I think, csv module of python can help you to extract file data.

First, convert your spreadsheet in csv format (save as csv command) with appropriate delimiter.

then, try below code snippet:

import csv
file_ptr = open('filename.csv','r');
fields = range(0, total number of columns in file header)
file_data = csv.DictReader(file_ptr, fields, delimiter=',')
for data in file_data:
   print data
   # data will be in dict format and first line would be all your headers,else are column data
   # here, database query and code processing 

Hope, it will be helpful.