1.文件名不能与模块名冲突

报错信息:

Traceback (most recent call last):
  File "./re160418.py", line 4, in <module>
    import re
  File "/home/python/re.py", line 26, in <module>
    regular expressions; they simply match themselves.  You can
AttributeError: 'module' object has no attribute 'compile'

解决方法:

[root@node1 python]# mv re.py  re160418.py      --将文件名不能与re模块同名