Execute sqlite3 “dot” commands from Python or register collation in command line utility

Question

My sqlite3 database contains a \"collate\" column-constraint. I\'ve placed it in the schema for the table, to prevent accidentally neglecting to use the necessary collation. How

Answer 1

You can call dot commands from Python using the subprocess module, which basically invokes a shell. If you need to use multiple dot commands, you can pass them as separate shell arguments - using a semicolon to separate them won't work.

import subprocess
subprocess.call(["sqlite3", "xxx.db", 
  ".mode tabs", 
  ".import file.tsv table_name"])