mirror of
				https://github.com/python/cpython.git
				synced 2025-11-04 07:31:38 +00:00 
			
		
		
		
	
		
			
	
	
		
			25 lines
		
	
	
	
		
			547 B
		
	
	
	
		
			Python
		
	
	
	
	
	
		
		
			
		
	
	
			25 lines
		
	
	
	
		
			547 B
		
	
	
	
		
			Python
		
	
	
	
	
	
| 
								 | 
							
								import sqlite3
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								class IterChars:
							 | 
						||
| 
								 | 
							
								    def __init__(self):
							 | 
						||
| 
								 | 
							
								        self.count = ord('a')
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								    def __iter__(self):
							 | 
						||
| 
								 | 
							
								        return self
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								    def next(self):
							 | 
						||
| 
								 | 
							
								        if self.count > ord('z'):
							 | 
						||
| 
								 | 
							
								            raise StopIteration
							 | 
						||
| 
								 | 
							
								        self.count += 1
							 | 
						||
| 
								 | 
							
								        return (chr(self.count - 1),) # this is a 1-tuple
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								con = sqlite3.connect(":memory:")
							 | 
						||
| 
								 | 
							
								cur = con.cursor()
							 | 
						||
| 
								 | 
							
								cur.execute("create table characters(c)")
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								theIter = IterChars()
							 | 
						||
| 
								 | 
							
								cur.executemany("insert into characters(c) values (?)", theIter)
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								cur.execute("select c from characters")
							 | 
						||
| 
								 | 
							
								print cur.fetchall()
							 |