Python下载
Python最新源码,二进制文档,新闻资讯等可以在Python的官网查看到:
Python官网:http://www.python.org/
你可以在一下链接中下载Python的文档,你可以下载 HTML、PDF 和 PostScript 等格式的文档。
Python文档下载地址:www.python.org/doc/
Python安装
Python已经被移植在许多平台上(经过改动使它能够工作在不同平台上)。
您需要下载适用于您使用平台的二进制代码,然后安装Python。
如果您平台的二进制代码是不可用的,你需要使用C编译器手动编译源代码。
编译的源代码,功能上有更多的选择性, 为python安装提供了更多的灵活性。
以下为不同平台上安装Python的方法:
Unix & Linux 平台安装 Python:
以下为在Unix & Linux 平台上安装 Python 的简单步骤:
打开WEB浏览器访问http://www.python.org/download/
选择适用于Unix/Linux的源码压缩包。
下载及解压压缩包。
如果你需要自定义一些选项修改Modules/Setup
- 执行 ./configure 脚本
- make
- make install
执行以上操作后,Python会安装在 /usr/local/bin 目录中,Python库安装在/usr/local/lib/pythonXX,XX为你使用的Python的版本号。
Window 平台安装 Python:
以下为在 Window 平台上安装 Python 的简单步骤:
打开WEB浏览器访问http://www.python.org/download/
在下载列表中选择Window平台安装包,包格式为:python-XYZ.msi 文件 , XYZ 为你要安装的版本号。
要使用安装程序 python-XYZ.msi, Windows系统必须支持Microsoft Installer 2.0搭配使用。只要保存安装文件到本地计算机,然后运行它,看看你的机器支持MSI。Windows XP和更高版本已经有MSI,很多老机器也可以安装MSI。
下载后,双击下载包,进入Python安装向导,安装非常简单,你只需要使用默认的设置一直点击"下一步"直到安装完成即可。
MAC 平台安装 Python:
最近的Mac OS系统都自带有Python环境,但是自带的Python版本为旧版本,你可以通过链接http://www.python.org/download/mac/ 查看MAC上Python的新版功能介绍。
MAC上完整的Python安装教程你可以查看:http://homepages.cwi.nl/~jack/macpython/index.html
环境变量配置
程序和可执行文件可以在许多目录,而这些路径很可能不在操作系统提供可执行文件的搜索路径中。
path(路径)存储在环境变量中,这是由操作系统维护的一个命名的字符串。这些变量包含可用的命令行解释器和其他程序的信息。
Unix或Windows中路径变量为PATH(UNIX区分大小写,Windows不区分大小写)。
在Mac OS中,安装程序过程中改变了python的安装路径。如果你需要在其他目录引用Python,你必须在path中添加Python目录。
在 Unix/Linux 设置环境变量
在 csh shell: 输入
setenv PATH "$PATH:/usr/local/bin/python"
, 按下"Enter"。
在 bash shell (Linux): 输入
export PATH="$PATH:/usr/local/bin/python"
,按下"Enter"。
在 sh 或者 ksh shell: 输入
PATH="$PATH:/usr/local/bin/python"
, 按下"Enter"。
注意: /usr/local/bin/python 是Python的安装目录。
在 Windows 设置环境变量
在环境变量中添加Python目录:
在命令提示框中(cmd) : 输入
path %path%;C:\Python
, 按下"Enter"。
注意: C:\Python 是Python的安装目录。

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To concatenate a list into a string, using the join() method in Python is the best choice. 1) Use the join() method to concatenate the list elements into a string, such as ''.join(my_list). 2) For a list containing numbers, convert map(str, numbers) into a string before concatenating. 3) You can use generator expressions for complex formatting, such as ','.join(f'({fruit})'forfruitinfruits). 4) When processing mixed data types, use map(str, mixed_list) to ensure that all elements can be converted into strings. 5) For large lists, use ''.join(large_li

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