def query_one(self,sql): self.cursor.execute(sql) return self.cursor.fetchone() def query_many(self,sql,size): self.cursor.execute(sql) return self.cursor.fetchmany(size) def open_spider(self,spider): self.conn = pymysql.Connect(host='localhost',port=3306,user = 'root',db='woniusale...
from timeout_decorator import timeout @timeout(10) # 设置超时时间为10秒defexecute_query(): ...
queryforpackagelook-ups.-i,--indexTEXTTarget PyPI-compatiblepackageindex url.--sequential Install dependencies one-at-a-time,insteadofconcurrently.[envvar:PIPENV_SEQUENTIAL]-d,--dev Install both develop anddefaultpackages[envvar:PIPENV_DEV]--keep-outdated Keep out-dated dependencies from being updatedi...
MySQL-Python mysql+mysqldb://<user>:<password>@<host>[:<port>]/<dbname> pymysql mysql+pymysql://<username>:<password>@<host>/<dbname>[?<options>] MySQL-Connector mysql+mysqlconnector://<user>:<password>@<host>[:<port>]/<dbname> cx_Oracle oracle+cx_oracle://user:pass@host:port/d...
create_engine(host="xx.xx.xx.xxx", port=3306, user="root", password="root", db="_hanser", connect_timeout=10) as engine: async with engine.acquire() as conn: # 我们还需要创建一个 SQLAlchemy 中的引擎, 然后将表反射出来 s_engine = create_engine("mysql+pymysql://root:root@xx.xx...
以上我们演示了如何使用 asyncpg 来获取数据库中的记录,我们看到执行 select 语句的话,我们可以使用 conn.fetchrow(query) 来获取满足条件的单条记录,conn.fetch(query) 来获取满足条件的所有记录。 Record 对象 我们说使用 conn.fetchone 查询得到的是一个 Record 对象,使用 conn.fetch 查询得到的是多个 Record 对...
now:2019-07-2815:57:40.424942now:2019-07-2815:57:45.425193except: (2013,'LostconnectiontoMySQL server during query') Traceback (most recent call last):File"read_timeout.py",line19,in<module> cursor.execute(sql)File"/Users/lanyang/workspace/orange-service/.venv/lib/python3.6/site-packages/My...
conn=pymysql.connect(host='localhost',user='root',password='password',database='test',port=3306,connect_timeout=5) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 上述代码在连接数据库时,设置了连接超时时间为5秒。如果连接超时,会抛出pymysql.err.OperationalError异常。
To disable it, the allow_local_infile connection option can be set to False at connect time (the default is True). Compatibility with Other Connection Interfacespasswd, db and connect_timeout are valid for compatibility with other MySQL interfaces and are respectively the same as password, data...
urllib.request.urlopen(url, data=None, [timeout, ]*, cafile=None, capath=None, cadefault=False, context=None) 示例代码1: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 import urllib.request response = urllib.request.urlopen('http://www.baidu.com') print(response.read().decode('utf...