Set up Python 3 build system with Sublime Text 3

Set up Python 3 build system with Sublime Text 3

Setting up a Python 3 build system in Sublime Text 3 allows you to easily run and execute Python scripts directly from within the editor. Here's how you can do it:

  1. Install Sublime Text Package Control (if not already installed): If you don't have Package Control installed, follow the instructions on the Package Control website to install it.

  2. Install Sublime​REPL Package (if not already installed): SublimeREPL is a package that enhances Sublime Text's ability to run code interactively in various programming languages.

    • Open Sublime Text.
    • Press Ctrl + Shift + P (Windows/Linux) or Cmd + Shift + P (macOS) to open the Command Palette.
    • Type Package Control: Install Package and select it.
    • Search for "SublimeREPL" and install it.

  3. Create a New Build System:

    • Open Sublime Text.
    • Go to Tools > Build System > New Build System....
    • Replace any existing code with the following:
    { "cmd": ["python3", "-i", "-u", "$file"], "file_regex": "^[ ]*File \"(...*?)\", line ([0-9]*)", "selector": "source.python" }
    • Save the file as Python3.sublime-build.

  4. Configure SublimeREPL (Optional, but recommended):

    • Open Sublime Text.
    • Go to Preferences > Package Settings > SublimeREPL > Settings - User.
    • Add the following line to enable the SublimeREPL auto-start feature:
    "default_extend_env": {"PATH": "/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/sbin"}

  5. Run Python Scripts:

    • Open a Python script file in Sublime Text.
    • Press Ctrl + B (Windows/Linux) or Cmd + B (macOS) to execute the Python script using the build system.

This setup allows you to run Python 3 scripts from within Sublime Text 3. When you run the script, the build system will use Python 3 and the SublimeREPL package to execute the code and provide an interactive console for further interaction if needed.

Examples

  1. "How to set up a Python 3 build system in Sublime Text 3?"

    • Description: You can create a custom build system in Sublime Text 3 to run Python 3 code. Configure the build system to use the appropriate Python interpreter.
    • Code:
      { "cmd": ["python3", "-u", "$file"], "file_regex": "^[ ]*File \"(...*?)\", line ([0-9]*)", "selector": "source.python", "shell": true }

  2. "How to create a custom build system for Python 3 in Sublime Text 3?"

    • Description: To create a custom build system for Python 3, define a new build system in Sublime Text with the correct command and options for your environment.
    • Code:
      { "cmd": ["python3", "$file"], "file_regex": "^[ ]*File \"(...*?)\", line ([0-9]*)", "selector": "source.python", "shell": true, "working_dir": "$file_path" }

  3. "How to run Python 3 scripts in Sublime Text 3?"

    • Description: Create a Python 3 build system in Sublime Text to execute Python scripts. You can then run the build system to execute your Python code.
    • Code:
      { "cmd": ["python3", "-u", "$file"], "selector": "source.python", "file_regex": "^[ ]*File \"(...*?)\", line ([0-9]*)", "shell": true, "working_dir": "$file_path" }

  4. "How to fix 'python: command not found' in Sublime Text 3?"

    • Description: This error occurs when Sublime Text cannot find the Python interpreter. Update the build system to use the correct path to the Python executable.
    • Code:
      { "cmd": ["/usr/local/bin/python3", "$file"], # Update with correct path "selector": "source.python", "shell": true }

  5. "How to set up a Python 3 build system for Windows in Sublime Text 3?"

    • Description: On Windows, ensure the correct path to the Python interpreter. Create a build system in Sublime Text that uses the proper executable.
    • Code:
      { "cmd": ["C:\\Python39\\python.exe", "$file"], # Adjust path as needed "file_regex": "^[ ]*File \"(...*?)\", line ([0-9]*)", "selector": "source.python", "shell": true, "working_dir": "$file_path" }

  6. "How to set up a Python 3 build system for Mac in Sublime Text 3?"

    • Description: To set up a build system for Mac, ensure Sublime Text has access to the correct Python 3 interpreter. Use the proper path in the build system configuration.
    • Code:
      { "cmd": ["/usr/local/bin/python3", "-u", "$file"], # Adjust path for Mac "file_regex": "^[ ]*File \"(...*?)\", line ([0-9]*)", "selector": "source.python", "shell": true, "working_dir": "$file_path" }

  7. "How to set up a Python 3 build system with virtualenv in Sublime Text 3?"

    • Description: If you're using virtualenv, ensure the build system uses the Python interpreter from the virtual environment.
    • Code:
      { "cmd": ["./venv/bin/python3", "-u", "$file"], # Path to virtualenv Python "file_regex": "^[ ]*File \"(...*?)\", line ([0-9]*)", "selector": "source.python", "shell": true, "working_dir": "$file_path" }

  8. "How to debug Python 3 scripts in Sublime Text 3?"

    • Description: You can set up a custom build system in Sublime Text 3 that uses the -u option to run Python scripts in unbuffered mode, which helps with debugging.
    • Code:
      { "cmd": ["python3", "-u", "$file"], # Unbuffered mode for debugging "file_regex": "^[ ]*File \"(...*?)\", line ([0-9]*)", "selector": "source.python", "shell": true, "working_dir": "$file_path" }

  9. "How to create a Python 3 build system with additional arguments in Sublime Text 3?"

    • Description: To pass additional arguments to your Python scripts, configure the build system to include these arguments in the cmd list.
    • Code:
      { "cmd": ["python3", "$file", "--verbose"], # Pass additional arguments "file_regex": "^[ ]*File \"(...*?)\", line ([0-9]*)", "selector": "source.python", "shell": true, "working_dir": "$file_path" }

  10. "How to set up a Python 3 build system with pip in Sublime Text 3?"

    • Description: You can create a build system in Sublime Text 3 that installs required packages using pip before running the script.
    • Code:
      { "cmd": [ "pip", "install", "-r", "requirements.txt", # Install dependencies "&&", "python3", "-u", "$file" # Run the script ], "file_regex": "^[ ]*File \"(...*?)\", line ([0-9]*)", "selector": "source.python", "shell": true, "working_dir": "$file_path" }

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