python 提供了将python2的代码转换为python3的工具2 to 3
[root@vlan206 ~]# yum provides 2to3 # 查找工具属于的包 Failed to set locale, defaulting to C Updating Subscription Management repositories. Unable to read consumer identity This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register. Repository AppStream is listed more than once in the configuration Repository PowerTools is listed more than once in the configuration Repository base is listed more than once in the configuration Repository centosplus is listed more than once in the configuration Repository extras is listed more than once in the configuration Last metadata expiration check: 0:26:36 ago on Thu May 26 13:40:37 2022. platform-python-devel-3.6.8-41.el8.x86_64 : Libraries and header files needed for Python development Repo : @System Matched from: Provide : 2to3 = 3.6.8-41.el8 platform-python-devel-3.6.8-41.el8.i686 : Libraries and header files needed for Python development Repo : AppStream Matched from: Provide : 2to3 = 3.6.8-41.el8 platform-python-devel-3.6.8-41.el8.x86_64 : Libraries and header files needed for Python development Repo : AppStream Matched from: Provide : 2to3 = 3.6.8-41.el8 [root@vlan206 ~]# # 安装2to3 工具 yum install 2to3 # 使用工具将curl.py由2的版本转换为3 2to3 -w cur.py



