关于python源码实现sqlite API 的问题
我想查看sqlite3 的连接是怎么实现的。可是源码只有 1 行__init.py__
from sqlite3.dbapi2 import *
2019-10-23 20:24
2019-10-24 09:10
程序代码:import datetime
import time
import collections.abc
from _sqlite3 import *
paramstyle = "qmark"
threadsafety = 1
apilevel = "2.0"
Date = datetime.date
Time = datetime.time
Timestamp = datetime.datetime
def DateFromTicks(ticks):
return Date(*time.localtime(ticks)[:3])
def TimeFromTicks(ticks):
return Time(*time.localtime(ticks)[3:6])
def TimestampFromTicks(ticks):
return Timestamp(*time.localtime(ticks)[:6])
version_info = tuple([int(x) for x in version.split(".")])
sqlite_version_info = tuple([int(x) for x in sqlite_version.split(".")])
Binary = memoryview
collections.abc.Sequence.register(Row)
def register_adapters_and_converters():
def adapt_date(val):
return val.isoformat()
def adapt_datetime(val):
return val.isoformat(" ")
def convert_date(val):
return datetime.date(*map(int, val.split(b"-")))
def convert_timestamp(val):
datepart, timepart = val.split(b" ")
year, month, day = map(int, datepart.split(b"-"))
timepart_full = timepart.split(b".")
hours, minutes, seconds = map(int, timepart_full[0].split(b":"))
if len(timepart_full) == 2:
microseconds = int('{:0<6.6}'.format(timepart_full[1].decode()))
else:
microseconds = 0
val = datetime.datetime(year, month, day, hours, minutes, seconds, microseconds)
return val
register_adapter(datetime.date, adapt_date)
register_adapter(datetime.datetime, adapt_datetime)
register_converter("date", convert_date)
register_converter("timestamp", convert_timestamp)
register_adapters_and_converters()
# Clean up namespace
del(register_adapters_and_converters)
2019-10-24 17:52
[此贴子已经被作者于2019-10-25 14:07编辑过]
2019-10-25 09:10
2019-10-25 14:00