本文教你如何用Windows电脑内置的“命令提示符”程序来打开Python文件。在大多数情况下，只要安装了Python，就能轻松实现这一操作。如果你安装的是旧版本的Python，或者使用了自定义安装，而没有将“Python”命令添加到电脑的“PATH”变量列表中，那你就得把Python添加到“PATH”变量列表中，然后才能通过“命令提示符”运行Python文件。
步骤
部分
1
部分 1 的 3:
查找Python文件路径
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1
前往Python文件的位置。在“命令提示符”中找到要打开的Python文件。
- 如果你已经知道要打开的Python文件的文件夹路径，直接在命令提示符中打开文件。
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2
选择Python文件。单击要查看文件夹路径的Python文件。
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3
右键点击Python文件。这样就会弹出一个下拉菜单。
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4
点击属性。它在下拉菜单中。属性窗口将会打开。
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5
注意“位置”的值。在切换到存储Python文件的目录时，你需要在“命令提示符”中输入“位置”标题右侧的文件夹地址（或“路径”）。
- 你可以通过高亮显示位置来复制它（点击并在“位置”值上拖动鼠标），然后按Ctrl+C。
部分
2
部分 2 的 3:
运行Python文件
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1
打开“开始”{"smallUrl":"https:\/\/www.zenmeban.com\/images_en\/0\/07\/Windowsstart.png","bigUrl":"https:\/\/www.zenmeban.com\/images\/thumb\/0\/07\/Windowsstart.png\/30px-Windowsstart.png","smallWidth":460,"smallHeight":460,"bigWidth":30,"bigHeight":30,"licensing":"<div class=\"mw-parser-output\"><\/div>"}。点击屏幕左下角的Windows标志。将会弹出“开始”菜单。
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2
搜索“命令提示符”。输入cmd即可。
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3
点击{"smallUrl":"https:\/\/www.zenmeban.com\/images_en\/6\/66\/Windowscmd1.png","bigUrl":"https:\/\/www.zenmeban.com\/images\/thumb\/6\/66\/Windowscmd1.png\/36px-Windowscmd1.png","smallWidth":460,"smallHeight":383,"bigWidth":36,"bigHeight":30,"licensing":"<div class=\"mw-parser-output\"><\/div>"}“命令提示符”。它在“开始”菜单的顶部。这样就会打开“命令提示符”。
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4
切换到Python文件的目录。输入cd和一个空格，然后输入Python文件的“位置”地址，并按↵ Enter。
- 例如，要想打开桌面上名称为“Files”的文件夹中的Python文件，你需要在这里输入cd desktop/Files。
- 如果你复制了文件路径，可以输入cd和一个空格，然后按Ctrl+V粘贴路径。
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5
输入“python”命令和文件名称。输入python file.py ，其中的file就是Python文件的名称。
- 例如，如果你的Python文件名为“script”，你需要输入python script.py。
- 如果Python文件的名称中有一个或多个空格，你需要在文件名和扩展名周围加上引号（例如，python "my script.py"）。
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6
按↵ Enter。这样就可以运行命令，并通过电脑安装的Python程序打开Python文件。
- 如果按Enter键后遇到一个错误，显示
'python' is not recognized as an internal or external command（'python'不是内部命令或外部命令），那你需要将python添加到PATH列表中然后再重试。
部分
3
部分 3 的 3:
将Python添加到PATH列表中
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1
启用查看隐藏文件夹。由于Python安装文件夹所在的文件夹很可能是隐藏的，你必须在继续操作之前取消隐藏：
- 打开“文件资源管理器”{"smallUrl":"https:\/\/www.zenmeban.com\/images_en\/0\/04\/File_Explorer_Icon.png","bigUrl":"https:\/\/www.zenmeban.com\/images\/thumb\/0\/04\/File_Explorer_Icon.png\/30px-File_Explorer_Icon.png","smallWidth":460,"smallHeight":460,"bigWidth":30,"bigHeight":30,"licensing":"<div class=\"mw-parser-output\"><\/div>"}。
- 点击查看选项卡。
- 选中“隐藏的项目”框。
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2
找到Python文件夹。在某些情况下，Python路径是“C:\Python27”；但是，如果你使用默认设置安装了最新版本的Python，那它在一个隐藏文件夹中。你可以按照以下步骤复制正确的文件路径：
- 点击“文件资源管理器”左侧的此电脑。
- 双击“设备和驱动器”部分中的硬盘。
- 向下滚动并双击“用户”文件夹。
- 双击包含你的用户名的文件夹。
- 向下滚动并双击“AppData”。
- 双击“Local”。
- 向下滚动并双击“Programs”。
- 双击“Python”文件夹。
- 双击带有你所选版本号的Python文件夹（例如，“Python36”）。
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3
将路径复制到Python文件夹。单击“文件资源管理器”顶部的地址栏以高亮显示其内容，然后按Ctrl+C复制高亮显示的地址。
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4
打开“超级用户”菜单。右键点击开始{"smallUrl":"https:\/\/www.zenmeban.com\/images_en\/0\/07\/Windowsstart.png","bigUrl":"https:\/\/www.zenmeban.com\/images\/thumb\/0\/07\/Windowsstart.png\/30px-Windowsstart.png","smallWidth":460,"smallHeight":460,"bigWidth":30,"bigHeight":30,"licensing":"<div class=\"mw-parser-output\"><\/div>"}图标即可。你应该会看到一个弹出菜单。
- 你也可以按⊞ Win+X打开“超级用户”弹出菜单。
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5
点击系统。它在弹出菜单中。点击将打开一个新窗口。
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6
点击系统信息。它是窗口右上角的一个链接。这样将打开“系统信息”窗口。
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7
点击高级系统设置链接。你可以在“系统信息”窗口的左上角看到它。这样又会弹出一个窗口。
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8
点击环境变量…。它在弹出窗口的右下角。
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9
在“用户变量”窗格中找到“PATH”标题。这个窗格在“环境变量”窗口的顶部。
- 你可能需要将鼠标光标悬停在“用户变量”窗格上，并向上或向下滚动才能找到“PATH”变量。
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10
双击“PATH”标题。这样就会打开一个弹出窗口。
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11
点击新建。它在窗口右侧。窗口中间将会打开一个文本字段。
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12
粘贴复制的路径。按Ctrl+V即可。你复制的路径将出现在窗口中间的文本字段中。
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13
在三个打开的窗口中点击确定。这样就会保存更改，并关闭“PATH”窗口、“环境变量”窗口和“系统属性”窗口。