python 执行mysql 出现Commands out of sync; you can't run this command now
请问怎么解决啊
错误提示：
Exception mysql_exceptions.ProgrammingError: (2014, "Commands out of sync; you can't run this command now") in <bound method DictCursor.__del_ of <MySQLdb.cursors.DictCursor object at 0x7f5ebc265050>> ignored
import json
import re
import traceback
import binascii
import time
from django.db import models
import MySQLdb as mdb
import MySQLdb.cursors
search_conn = mdb.connect('127.0.0.1', '**', '', '', port=9306, charset='utf8', cursorclass=MySQLdb.cursors.DictCursor)
search_conn.ping(True)
re_punctuations = re.compile(
ur"。|，|,|！|…|!|《|》|<|>|\"|'|:|：|？|\?|、|\||“|”|‘|’|；|\\|—|_|=|（|）|·|\(|\)| |\.|【|】|『|』|@|&|%|\^|\*|\+|\||<|>|~|`|\[|\]")
def get_conn():
return mdb.connect('127.0.0.1', '***', '', '', port=9306, charset='utf8', cursorclass=MySQLdb.cursors.DictCursor)
def escape_string(string):
return re.sub(r"(['`=\(\)|\-!@~\"&/\\\^\$])", r"\\\1", string)
def split_words(string):
string = re_punctuations.sub(u' ', string).replace(u'-', u' ')
words = []
for w in string.split():
try:
words.append(w.encode('ascii').decode('ascii'))
except:
for c in w:
words.append(c)
return u'|'.join(words).strip(u'|')
class HashManager(models.Manager):
def search(self, keyword, start=0, count=10, category=None, sort=None):
search_cursor = search_conn.cursor()
sql = '''SELECT id FROM rt_main'''
conds = []
values = []
if keyword:
conds.append('MATCH(%s)')
values.append(escape_string(keyword))
if category:
conds.append('category=%s')
values.append(binascii.crc32(category)&0xFFFFFFFFL)
if conds:
sql += ' WHERE ' + ' AND '.join(conds)
if sort == 'create_time':
sql += ' ORDER BY create_time DESC '
elif sort == 'length':
sql += ' ORDER BY length DESC '
sql += '''
LIMIT %s,%s
OPTION max_matches=1000, max_query_time=200
'''
search_cursor.execute(sql, values + [start, count])
items = list(search_cursor.fetchall())
search_cursor.execute('SHOW META')
meta = {}
for d in search_cursor.fetchall():
meta[d['Variable_name']] = d['Value']
sql = '''SELECT category, COUNT(*) AS num FROM rt_main '''
if conds:
sql += ' WHERE ' + ' AND '.join(conds)
sql += ''' GROUP BY category OPTION max_query_time=200'''
search_cursor.execute(sql, values)
cats = list(search_cursor.fetchall())
res = {
'result': {
'items': items,
'meta': meta,
},
'cats': {
'items': cats,
},
}
search_cursor.close()
return res
def list_with_files(self, ids):
res = []
if len(ids[0]) == 40:
items = Hash.objects.filter(info_hash__in=ids).values()
else:
items = Hash.objects.filter(id__in=ids).values()
res = list(items)
items = FileList.objects.filter(info_hash__in=[x['info_hash'] for x in res]).values()
for x in res:
for y in items:
if x['info_hash'] == y['info_hash']:
try:
x['files'] = json.loads(y['file_list'])
except ValueError:
pass
items = Extra.objects.filter(hash_id__in=ids).values()
for x in res:
for y in items:
if x['id'] == y['hash_id']:
x['extra'] = y
return res
def list_related(self, hash_id, name, count=10):
string = split_words(name)
if not string:
return []
search_conn = get_conn()
search_cursor = search_conn.cursor()
try:
sql = '''SELECT id FROM rt_main WHERE MATCH(%s) AND id<>%s LIMIT 0,%s OPTION max_matches=1000, max_query_time=200'''
search_cursor.execute(sql, (string, hash_id, count))
ids = [x['id'] for x in search_cursor.fetchall()]
items = Hash.objects.only('name', 'length', 'create_time', 'id').filter(id__in=ids).values()
except:
traceback.print_exc()
items = []
search_cursor.close()
search_conn.close()
return items
