之前部署了openstack虚拟化环境,有一天在使用nova list查看虚拟机的时候,突然报错!如下: [root@linux-node1 src]# nova listERROR (UnicodeEncodeError): 'ascii' codec can't encode character u'\uff08' in position 9: ordinal not in range(128) python在安装时,默认的编码是ascii,当程序中出现非ascii编码时,python的处理
Python报错总结: 常见异常 1,NameError: name 'a' is not defined:未定义函数名 2,IndentationError: unindent does not match any outer indentation level :代码缩进问题 3,IndentationError: unexpected indent:代码缩进问题 4,TypeError: %d format: a number is required, not st
转载:https://blog.csdn.net/qq_39779233/article/details/103224712 Python报错ModuleNotFoundError: No module named 'numpy' 这种情况一般是缺少numpy所致,需要安装numpy.最好使先进入到进入python 版本安装目录下的Script目录中,我这里安装在了D盘,目录是D:\ProgramFiles\Python\Python3.7-64\Scripts ,在这个目录下执行下面的语句安装
sum = 0 for x in [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]: sum = sum + x print(sum) 代码如上,但是运行报错: 发现是因为少了缩进,改正为如下: sum = 0 for x in [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]: sum = sum + x print(sum) 就没得问题了. 运行为: 但是若在改正代码格式: sum = 0 for x in [1, 2, 3, 4, 5, 6, 7, 8, 9,
1.AttributeError: 'NoneType' object has no attribute 'group' import re s=r'<title>kobe<\title>' ret = re.search('<\w+><\\w+>',s) print(ret.group(0)) 属性错误: "NoneType"对象没有属性'group'说明:search或者match返回回来的结果为'None',是空类型,所以在调用gr
报错: SyntaxError: Non-ASCII character 概意思是,默认文件是ASCII格式,需要更改文件编码,操作是在文件首行加上 #!/usr/bin/python # -*- coding:utf8 -*- 报错 :TypeError: unicode argument expected, got 'str' if your environment is Python2.7, you can change code :import ioandoutput_stream·=i
平时开发 Python 代码过程中,经常会遇到这个报错: ValueError: list.remove(x): x not in list 错误提示信息也很明确,就是移除的元素不在列表之中. 比如: >>> lst = [1, 2, 3] >>> lst.remove(4) Traceback (most recent call last): File "<stdin>", line 1, in <module> Value