ubuntu linux下使用vscode切换python虚拟环境

请注意本文的讨论环境：
Ubuntu Linux 16.04 64位
在打开软件后，不关闭软件的情况下，切换python虚拟环境，使用的验证代码是：import sys
print(sys.prefix)
print(sys.executable)
第一步：按下左边的纸张图标
第二步：选择launch.json



第三步，launch.json的内容如下：{
"version": "0.2.0",
"configurations": [
{
"name": "Python",
"type": "python",
"request": "launch",
"stopOnEntry": true,
// "pythonPath": "${config:python.pythonPath}",
"pythonPath": "${config:python.pythonPath}",
// "pythonPath": "${config:python.pythonPath}",
"program": "${file}",
"cwd": "${workspaceRoot}",
"env": {},
"envFile": "${workspaceRoot}/.env",
"debugOptions": [
"WaitOnAbnormalExit",
"WaitOnNormalExit",
"RedirectOutput"
]
},
{
"name": "PySpark",
"type": "python",
"request": "launch",
"stopOnEntry": true,
"osx": {
"pythonPath": "${env:SPARK_HOME}/bin/spark-submit"
},
"windows": {
"pythonPath": "${env:SPARK_HOME}/bin/spark-submit.cmd"
},
"linux": {
"pythonPath": "${env:SPARK_HOME}/bin/spark-submit"
},
"program": "${file}",
"cwd": "${workspaceRoot}",
"env": {},
"envFile": "${workspaceRoot}/.env",
"debugOptions": [
"WaitOnAbnormalExit",
"WaitOnNormalExit",
"RedirectOutput"
]
},
{
"name": "Python Module",
"type": "python",
"request": "launch",
"stopOnEntry": true,
"pythonPath": "${config:python.pythonPath}",
"module": "module.name",
"cwd": "${workspaceRoot}",
"env": {},
"envFile": "${workspaceRoot}/.env",
"debugOptions": [
"WaitOnAbnormalExit",
"WaitOnNormalExit",
"RedirectOutput"
]
},
{
"name": "Integrated Terminal/Console",
"type": "python",
"request": "launch",
"stopOnEntry": true,
"pythonPath": "${config:python.pythonPath}",
"program": "${file}",
"cwd": "",
"console": "integratedTerminal",
"env": {},
"envFile": "${workspaceRoot}/.env",
"debugOptions": [
"WaitOnAbnormalExit",
"WaitOnNormalExit"
]
},
{
"name": "External Terminal/Console",
"type": "python",
"request": "launch",
"stopOnEntry": true,
"pythonPath": "${config:python.pythonPath}",
"program": "${file}",
"cwd": "",
"console": "externalTerminal",
"env": {},
"envFile": "${workspaceRoot}/.env",
"debugOptions": [
"WaitOnAbnormalExit",
"WaitOnNormalExit"
]
},
{
"name": "Django",
"type": "python",
"request": "launch",
"stopOnEntry": true,
"pythonPath": "${config:python.pythonPath}",
"program": "${workspaceRoot}/manage.py",
"cwd": "${workspaceRoot}",
"args": [
"runserver",
"--noreload",
"--nothreading"
],
"env": {},
"envFile": "${workspaceRoot}/.env",
"debugOptions": [
"WaitOnAbnormalExit",
"WaitOnNormalExit",
"RedirectOutput",
"DjangoDebugging"
]
},
{
"name": "Flask",
"type": "python",
"request": "launch",
"stopOnEntry": false,
"pythonPath": "${config:python.pythonPath}",
"program": "fully qualified path fo 'flask' executable. Generally located along with python interpreter",
"cwd": "${workspaceRoot}",
"env": {
"FLASK_APP": "${workspaceRoot}/quickstart/app.py"
},
"args": [
"run",
"--no-debugger",
"--no-reload"
],
"envFile": "${workspaceRoot}/.env",
"debugOptions": [
"WaitOnAbnormalExit",
"WaitOnNormalExit",
"RedirectOutput"
]
},
{
"name": "Flask (old)",
"type": "python",
"request": "launch",
"stopOnEntry": false,
"pythonPath": "${config:python.pythonPath}",
"program": "${workspaceRoot}/run.py",
"cwd": "${workspaceRoot}",
"args": [],
"env": {},
"envFile": "${workspaceRoot}/.env",
"debugOptions": [
"WaitOnAbnormalExit",
"WaitOnNormalExit",
"RedirectOutput"
]
},
{
"name": "Pyramid",
"type": "python",
"request": "launch",
"stopOnEntry": true,
"pythonPath": "${config:python.pythonPath}",
"cwd": "${workspaceRoot}",
"env": {},
"envFile": "${workspaceRoot}/.env",
"args": [
"${workspaceRoot}/development.ini"
],
"debugOptions": [
"WaitOnAbnormalExit",
"WaitOnNormalExit",
"RedirectOutput",
"Pyramid"
]
},
{
"name": "Watson",
"type": "python",
"request": "launch",
"stopOnEntry": true,
"pythonPath": "${config:python.pythonPath}",
"program": "${workspaceRoot}/console.py",
"cwd": "${workspaceRoot}",
"args": [
"dev",
"runserver",
"--noreload=True"
],
"env": {},
"envFile": "${workspaceRoot}/.env",
"debugOptions": [
"WaitOnAbnormalExit",
"WaitOnNormalExit",
"RedirectOutput"
]
},
{
"name": "Attach (Remote Debug)",
"type": "python",
"request": "attach",
"localRoot": "${workspaceRoot}",
"remoteRoot": "${workspaceRoot}",
"port": 3000,
"secret": "my_secret",
"host": "localhost"
}
]
}注意上面的重点是所有的pythonPath的值都必须是下面这个
"pythonPath": "${config:python.pythonPath}"或者删除launch.json，然后重新启动让他自己建立。
第四步，vscode内部切换虚拟环境方法（注意，如果没有以上的设置，下面的虚拟环境切换操作很可能会失效。）：



下面是我向作者请教的过程： https://github.com/Microsoft/vscode-python/issues/173#issuecomment-364661275