python2中的unicode()函数在python3中会报错:NameError: name 'unicode' is not defined There is no such name in Python 3, no. You are trying to run Python 2 code in Python 3. In Python 3, unicode has been renamed to str. 翻译过来就是:Python 3中没有这样的名字,没有. 您正在尝试在Python 3…
Python2.6不支持format(123456L, ",")或format(123, ",")的format用法,会报下面的错误 ValueError: Unknown format code ',' for object of type 'long' ValueError: Unknown format code ',' for object of type 'int' Python2.7支持format(123456L, ",")或for…
1. Centos7初始安装的python版本为2.7.5 2.下载最新的python3.5.2,解压到/usr/local/src 3. 配置.编译.测试.安装(根据软件的README说明) ./configure --prefix=/usr/local/python3.5.2 make make test make install 4.备份原来的python文件(通过命令ls -l /usr/bin/python可以查看python文件软链接指向的文件,类似于window的快捷方式) mv…
网上帖子一大堆,按照那些教程操作,确实可以成功安装.但是安装成功之后呢,pip还是用的python2的pip. 切换到python3的pip之后,发现无法下载模块,还会有很多报错信息.以及"require TLS/SSL, however the ssl module in Python is not avail"等等的错误.(文章最下面列出了安装过程中遇到的7类错误) 下面开始介绍闭坑的步骤: 操作系统: centos6. 一.正式安装前的准备工作: 1.重新安装openssl 详细…
解决:python2.7升级到python3后,用pip进行安装时报Fatal error in launcher:Unbale to create process using`"" 通过查资料查到:http://www.scriptscoop2.com/t/9cebc32c6ebc/python-fatal-error-in-launcher-unable-to-create-process-using-c-program-files.html 借鉴MiguelCldn 提供的方法,…