Jupyter Core

import os
from jupyter_core.paths import jupyter_data_dir, jupyter_config_dir, jupyter_runtime_dir, jupyter_path
from jupyter_core.application import JupyterApp

print(f"Jupyter Data Directory: {jupyter_data_dir()}")
print(f"Jupyter Config Directory: {jupyter_config_dir()}")
print(f"Jupyter Runtime Directory: {jupyter_runtime_dir()}")

print("\nJupyter Search Paths (example of core configuration paths):")
# jupyter_path() returns a dictionary, typically with keys like 'data_path', 'config_path', 'runtime_path'
for path_type, paths in jupyter_path().items():
    if paths:
        print(f"  {path_type.replace('_path', ' Path').replace('_', ' ').title()}:")
        for path in paths:
            print(f"    - {path}")

# JupyterApp is a base class, usually subclassed for actual applications.
# This demonstrates its availability for inheritance.
class MyJupyterCoreApp(JupyterApp):
    name = "my-core-app"
    description = "A simple example of subclassing JupyterApp"

    def initialize(self, argv=None):
        super().initialize(argv)
        self.log.info(f"MyJupyterCoreApp initialized. Config file: {self.config_file}")

    def start(self):
        self.log.info("MyJupyterCoreApp started.")

if __name__ == '__main__':
    # Instantiate a dummy app to show it loads, but won't run a full loop without more setup
    try:
        app = MyJupyterCoreApp(argv=[]).initialize()
        print("\nSuccessfully initialized a basic JupyterApp instance.")
    except Exception as e:
        print(f"\nCould not initialize MyJupyterCoreApp (expected for this minimal example): {e}")