added extract

scripts/extract.py

@@ -0,0 +1,14 @@
+import sqlite3
+import sys
+con = sqlite3.connect("index.db")
+cur = con.cursor()
+cur2 = con.cursor()
+
+q=f"%{sys.argv[1]}%"
+
+res = cur.execute("select books.id, books.title, data.format , book_content.content from books, data, book_content where ( author_sort like ? or title like ? ) and books.id = data.book and books.id = book_content.id ", (q,q))
+for id, title, format, content in res: 
+    print(f"{title}.{format.lower()}")
+    filename = f"{title}.{format.lower()}"
+    with open(filename, mode='wb') as file:
+        file.write( content )