在Linux下升级Python 2.7到Python 3.5,可以按照以下步骤进行:
安装依赖
确保已经安装了必要的依赖,在终端中运行以下命令:
“`bash
sudo aptget update
sudo aptget install y buildessential checkinstall
sudo aptget install y libreadlinegplv2dev libncursesw5dev libssldev libsqlite3dev tkdev libgdbmdev libc6dev libbz2dev
“`
从Python官网下载Python 3.5的源码包,或者使用wget
命令直接下载:
“`bash
wget https://www.python.org/ftp/python/3.5.10/Python3.5.10.tgz
“`
解压下载的源码包:
“`bash
tar xzf Python3.5.10.tgz
“`
进入解压后的目录,然后执行以下命令进行编译和安装:
“`bash
cd Python3.5.10
./configure enableoptimizations
make altinstall
“`
注意:这里使用make altinstall
而不是make install
,以避免覆盖系统默认的Python版本。
安装完成后,检查Python 3.5是否已经成功安装:
“`bash
python3.5 version
“`
如果输出显示为Python 3.5.10
,则表示安装成功。
如果需要将Python 3.5设置为系统默认的Python版本,可以使用updatealternatives
命令:
“`bash
sudo updatealternatives install /usr/bin/python python /usr/bin/python2.7 1
sudo updatealternatives install /usr/bin/python python /usr/bin/python3.5 2
sudo updatealternatives config python
“`
在出现的选项中选择Python 3.5作为默认版本。
至此,Python 2.7已经成功升级到Python 3.5。
在Linux下升级Python 2.7到Python 3.5,可以按照以下步骤进行:
1、安装依赖
确保已经安装了必要的依赖,在终端中运行以下命令:
“`bash
sudo aptget update
sudo aptget install y buildessential checkinstall
sudo aptget install y libreadlinegplv2dev libncursesw5dev libssldev libsqlite3dev tkdev libgdbmdev libc6dev libbz2dev
“`
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