python 报错信息汇总

问题1：NameError: name 'sys' is not defined

解决方法： 在代码上加入 import sys

问题2：

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: a float is required

时间戳转换过程中报错：

>>> endtime= "1438768777102"
>>> period = endtime[:-3]
>>> print period
1438768777
>>> timeArray = time.localtime(period)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: a float is required
>>> period = int(period)
>>> timeArray = time.localtime(period)
>>> period = time.strftime("%Y-%m-%d %H:%M:%S", timeArray)
>>> print period
2015-08-05 17:59:37

把字符串转换成int行，就报错了