python - 标准库：traceback模块

traceback 模块:

　　　允许你在程序里打印异常的跟踪返回 (Traceback)信息, 类似未捕获异常时解释器所做的.

 import traceback

 try:

     raise SyntaxError, "example"

 except:

     traceback.print_exc()

Traceback (innermost last):
  File "traceback-example-1.py", line 7, in ?
SyntaxError: example

配合MySQL 数据库使用

 1     try:
 2         conn=MySQLdb.connect(host=‘localhost’,user=‘root’,passwd=‘’,port=3306,connect_timeout=5,charset='utf8')
 3         conn.select_db(dbname)#数据库名
 4         curs = conn.cursor()
 5         if param <> '':
 6             curs.execute(sql,param)
 7         else:
 8             curs.execute(sql)
 9         conn.commit()
10         curs.close()
11         conn.close()
12     except Exception,e:
13        print "mysql execute: " + str(e) #捕获MySQL数据库异常信息