我有一個Python腳本,得到我的MySQL版本,但我不斷收到同樣的錯誤「_mysql_exceptions.InterfaceError:(0,‘’)」Python的MySQL的遊標會關閉連接
我去python2.7控制檯並試圖相同,
import MySQLdb
conn = MySQLdb.connect (host="localhost",user="user", passwd="pass", db="example")
cursor = conn.cursor()
cursor.execute ("SELECT VERSION()")
Traceback (most recent call last): File "", line 1, in
File "/usr/local/lib/python2.7/site-packages/MySQLdb/cursors.py", line 205, in execute self.errorhandler(self, exc, value) File "/usr/local/lib/python2.7/site-packages/MySQLdb/connections.py", line 36, in defaulterrorhandler raise errorclass, errorvalue _mysql_exceptions.InterfaceError: (0, '')
和文件
import sys
import MySQLdb
try:
conn = MySQLdb.connect (host="localhost",user="user", passwd="pass", db="example")
except MySQLdb.Error, e:
print "Error %d: %s" % (e.args[0], e.args[1])
sys.exit (1)
try:
cursor = conn.cursor()
cursor.execute ("SELECT VERSION()")
row = cursor.fetchone()
print "server version:", row[0]
cursor.close()
except MySQLdb.Error, e:
print "Error %d: %s" % (e.args[0], e.args[1])
#sys.exit (1)
conn.close()
[用戶@本地] $蟒蛇b.py
Error 0: Traceback (most recent call last): File "b.py", line 18, in conn.close() _mysql_exceptions.ProgrammingError: closing a closed connection
感謝
如果我縮進第二個conn.close()它仍然不顯示版本,並且它給出了相同的錯誤 – 2015-01-10 18:38:55
對不起......用新鮮的眼睛看這個,現在理解調試b.py不是你的客觀,但理解你的連接問題是。 – dylrei 2015-01-10 18:59:57
我的猜測是連接因爲某種原因在內部關閉。如果在第二個「嘗試」塊之前「打印conn.open」,會發生什麼? – dylrei 2015-01-10 19:04:58