Python with Visual Studio Code - Run specific file - python

I am writing a small application with Visual Studio Code and Python. My application have these files:
Main.py
MyCustomClass.py
Basically, the Main.py is the entry point to the application. The other class is just logic to solve some problems.
While I developing the code, I test it, by running it, step by step. I run the application with F5 which is running the current file I'm editing. It can be the file MyCustomClass.py which doesn't have an entry point at all and I'm losing time to swap between files.
Is it possible to configure Visual Studio Code to run a specific file (Main.py) while running (F5)? No matter which file I am currently viewing.

You need to edit your launch.json file. A quick way to do it is to click the wrench icon on the run toolbar:
Then add the following to the launch.json file:
{
"name": "Python: main.py (Integrated Terminal)",
"type": "python",
"request": "launch",
"program": "${workspaceFolder}/main.py",
"console": "integratedTerminal"
},
Above is my configuration, and the "program" line is what does the magic.

The program setting in your launch configuration settings refers to the Python script that will be executed. By default, it is set to ${file} which refers to the file you are actively editing. Just set the value to the file you want to run.
{
"name": "Python",
"type": "python",
"request": "launch",
"stopOnEntry": true,
"pythonPath": "${config:python.pythonPath}",
"program": "main.py", // Specify the full path to your file
"cwd": "${workspaceFolder}",
"env": {},
"envFile": "${workspaceFolder}/.env",
"debugOptions": [
"RedirectOutput"
]
},
I should mention that if you are using Windows you can use either forward slashes / or double back slashes \\ in the program path. Single back slashes won't work.

Related

python vs-code run file.py in file.py directory

Hi everyOne i'm trying to migrate to vscode from spyder. There is a way to configure the vsCode to run the curren opend file.py in the file.py folder automatically (not having to change manually the folder for every new file I open).
Second I have a file1.py containing some functions and main.py where I import file1. Is there a way to get autocompletion of functions in file inside the main?
Edit
launch.json
{
"version": "0.2.0",
"configurations": [
{
"name": "Python: Current File",
"type": "python",
"request": "launch",
"program": "${file}",
"console": "integratedTerminal",
"cwd" : "${workspaceFolder}/${relativeFileDirname}"
}
]
}

I got a wrong directory using os.path.abspath('.') [duplicate]

How do I run a Python program under debug and set the working directory for the run?
#SpeedCoder5's comment deserves to be an answer.
In launch.json, specify a dynamic working directory (i.e. the directory where the currently-open Python file is located) using:
"cwd": "${fileDirname}"
This takes advantage of the "variables reference" feature in VS Code, and the predefined variable fileDirname.
If you're using the Python: Current File (Integrated Terminal) option when you run Python, your launch.json file might look like mine, below (more info on launch.json files here).
{
"version": "0.2.0",
"configurations": [
{
"name": "Python: Current File (Integrated Terminal)",
"type": "python",
"request": "launch",
"program": "${file}",
"console": "integratedTerminal",
"cwd": "${fileDirname}"
},
//... other settings, but I modified the "Current File" setting above ...
}
Remember the launch.json file controls the run/debug settings of your Visual Studio code project; my launch.json file was auto-generated by VS Code, in the directory of my current "Open Project". I just edited the file manually to add "cwd": "${fileDirname}" as shown above.
Remember the launch.json file may be specific to your project, or specific to your directory, so confirm you're editing the correct launch.json (see comment)
If you don't have a launch.json file, try this:
To create a launch.json file, open your project folder in VS Code (File > Open Folder) and then select the Configure gear icon on the Debug view top bar.
Per #kbro's comment, you might be prompted to create a launch.json file by clicking the Debug button itself:
When I clicked on the Debug button on my navigation panel it said "To customise Run and Debug create a launch.json file." Clicking on "create..." opened a dialog asking what language I was debugging. In my case I selected Python
Configure the cwd setting in launch.json as follows:
{
"name": "Python",
"type": "python",
"pythonPath": "python",
...
"cwd": "<Path to the directory>"
...
}
This setting helps me: (I am a Windows person)
{
"type": "node",
"request": "launch",
"name": "Launch Program",
"cwd": "${workspaceFolder}\\app\\js", // set directory here
"program": "${workspaceFolder}\\app\\js\\server.js", // set start js here
}
In some cases, it might be also useful to set the PYTHONPATH along with the workspaceFolder:
{
"name": "Python: Current File",
"type": "python",
"request": "launch",
"program": "${file}",
"console": "integratedTerminal",
"cwd": "${workspaceFolder}",
"env": {
"PYTHONPATH": "${cwd}"
}
}
I am posting this sample configuration for people who use TypeScript on Node.js
in my project my Node.js server TypeScript files are located in folder Application_ts
and the compiled js files are generated in the folder named Application
because when we run our application in debug mode or start it normally we should start from Application folder which contains the js files
so bellow configuration run debug from root folder where my application_ts also exists and works perfect
{
"version": "0.2.0",
"configurations": [
{
"type": "node",
"request": "launch",
"name": "Debug TypeScript in Node.js",
"program": "${workspaceRoot}\\Application\\app.js",
"cwd": "${workspaceRoot}\\Application",
"protocol": "inspector",
"outFiles": [],
"sourceMaps": true
},
{
"type": "node",
"request": "attach",
"name": "Attach to Process",
"port": 5858,
"outFiles": [],
"sourceMaps": true
}
]
}
You can set up current working directory for debugged program using cwd argument in launch.json
To set current working directory to whatever file you are executing at the time:
File > Preferences > Settings > Python > Data Science > Execute in File Dir
Thanks brch: Python in VSCode: Set working directory to python file's path everytime
I faced the same issue and noticed that when running the which python command in Terminal in Mac it shows me a different path to what I get when I run the which python command in vs code. And also that my file runs properly in the terminal when run using python filename.py
So I copied that path from the terminal and pasted it in VS code into Preferences->Settings->Extensions->Python->Default Interpreter Path and it worked. I hope this helps.
I use the "justMyCode = false" so I can also debug and jump into the functions that the main script calls.
{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"name": "Python: Current File",
"type": "python",
"request": "launch",
"program": "${file}",
"console": "integratedTerminal",
"justMyCode": false,
"cwd": "${fileDirname}" }
]
}

Visual Studio Code unable to set env variable paths prior to debugging python file

I have a python project I need to debug
It comes with its own python installation, lets say in c:\project\python.exe and libraries, located in c:\project\libraries\..
It's launched with a cmd file C:\project\start.cmd
The cmd file executes another file called c:\projects\setenv.cmd which sets up paths to each library while the prompt is open
I'm trying to replicate this functionality in Visual Studio Code
I created a workspace and set it up so the following files are in the workspace .vscode folder:
settings.json
{
"python.pythonPath": "C:\\project\\python.exe"
}
launch.json
{
"version": "0.2.0",
"configurations": [
{
"name": "Python: Current File",
"type": "python",
"request": "launch",
"program": "${file}",
"preLaunchTask": "shellCommand",
"console": "integratedTerminal"
}
]
}
tasks.json
{
"version": "2.0.0",
"tasks": [
{
"label": "shellCommand",
"command": "C:\\project\\set_env.cmd ; pause",
"type": "shell"
}
]
}
When I open the main.py file which the start.cmd executes after setenv.cmd, and start debugging,
I can see that the task shellCommand is executed and the setenv.cmd runs, because of the pause statement.
The output I get is below:
C:\project>SET PYTHONPATH=C:\project\libraries\camera;C:\project\libraries\exewrappers
Press Enter to continue...:
However, the main.py file crashes on the first library import, which it cannot find
The library path is correct, but it seems that Visual Studio Code forgets the Path variable after setenv.cmd is executed
How can I make it so the env variables set up by setenv.cmd are still remembered when I'm debugging the main.py file?

How to specify startup file in VSCode Python Extension

In Visual Studio's Python Tools for Visual Studio (url) when you have a Python project file there's this notion of a Startup File.
Each Python project has one assigned start-up file, shown in boldface
in Solution Explorer. The startup file is the file that's run when you
start debugging (F5 or Debug > Start Debugging) or when you run your
project in the Interactive window (Shift+Alt+F5 or Debug > Execute
Project in Python Interactive). To change it, right-click the new file
and select Set as Startup File.
What's the equivalent in VSCode's Python Extension? How to I target a specific file in my directory to run with the current debug settings selected from my launch.json file
Turns out it's the program attribute.
program - executable or file to run when launching the debugger
https://code.visualstudio.com/docs/editor/debugging#_launchjson-attributes
As an example...
{
"name": "python launch foo",
"type": "python",
"request": "launch",
"program": "${workspaceFolder}/d1/d2/foo.py",
"cwd": "${workspaceFolder}",
"args": [ "${env:USERNAME}", "--optionX", "x1000" ]
"console": "integratedTerminal"
}
Previously I was just duplicating launch configs with the default file variable which would always just run whatever active file was open in the workspace.
{
"name": "Python: Current File",
"type": "python",
"request": "launch",
"program": "${file}",
"cwd": "${workspaceFolder}",
}

Debug Python module using VS Code by pressing F5

My project structure is as follows:
Project Folder
--setup.py
----Module Folder
------ __init__.py
------ __main__.py
My __main__.py file contains the entry point to my application and the setup file is configured like this:
from setuptools import setup
setup(name='my_project',
version='0.1.0',
packages=['my_project'],
entry_points={
'console_scripts': [
'my_project= my_project.__main__:main'
]})
This means I can run my code without the debugger attached using:
python -m my_project
I've tried debugging using VS Code by navigating to my __main__.py file and pressing F5 to run but this doesn't work and throws an exception. How do I configure Visual Studio Code to run this module in debug mode?
Also how do I ensure the program also runs the module and not the file I am looking at when I press F5?
The accepted answer didn't work for me (VSCode 1.49.0), and I got an error message reading: Invalid message: "program", "module", and "code" are mutually exclusive.
Removing the "program": "${file}", line solved the issue. I think this makes sense, since defining both a module (with an implied entrypoint) and a file is redundant.
My launch.json looks like this:
{
"version": "0.2.0",
"configurations": [
{
"name": "Python Module",
"type": "python",
"request": "launch",
"console": "integratedTerminal",
"module": "my_project",
}
]
}
After some research I've found a solution:
Navigate to the top right section in the debug menu and click the cog to create a launch.json file for this project. This will be used to configure VS Code.
If there isn't one already a launch.json file be created, into it paste this:
{
"version": "0.2.0",
"configurations": [
{
"name": "Python Module",
"type": "python",
"request": "launch",
"program": "${file}",
"console": "integratedTerminal",
"pythonPath": "${config:python.pythonPath}",
"module": "my_project",
"cwd": "${workspaceRoot}",
}
]
}
I found this code here: https://github.com/DonJayamanne/pythonVSCode/issues/518#issuecomment-260838308
Just using this answer didn't work for me though and I got the error: No module named my_projectbut I found this answer: https://github.com/DonJayamanne/pythonVSCode/issues/826
In it the final comment tells you add the following to the config.
"env": {"PYTHONPATH":"${workspaceRoot}"},
This fixes the error and now you can press F5 and your module will be debugged.

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