phy-imports-resolver 0.1.2

Resolve imports of a python file or module, with site packages & builtin modules excluded.

PHY-imports-resolver

Resolve imports of a python file or module recursively, exclude site packages & builtin modules.

This project is part of phy.

Install

If you intend to use this package as a library within your Python project, install it as follows:

pip install phy-imports-resolver

If you plan to use its command-line interface (CLI) to generate graphic diagram, install the cli optional dependencies:

pip install phy-imports-resolver[cli]

How to use

Suppose the layout of your python project is:

src/
├──my_project/
│  ├──file1.py
│  ├──file2.py
│  ├──pkg1.py
│  │  ├── file3.py
│  │  └── __init__.py
│  └──__init__.py
└──script1.py

To resolve the imports tree:

• Firstly you MUST specify a root directory named project_dir to search within; in this case, it is src. If project_dir is not explicitly provided, current directory is used.

• An entry file path is also required as the start point for the resolver to search from. If you want to resolve from a package instead a file, use the __init__.py file of the package as the entry file.

In this case, if script1.py is the entry file to resolve, call the resolve(entry_file) method:

import phy_imports_resolver
from pathlib import Path

project_dir = Path('./src')
entry_file = project_dir / 'script1.py'

mod_imports_node = phy_imports_resolver.resolve(entry_file, project_dir)

The result mod_imports_node is a ModuleImportsNode object, which represents a file module or sub package in a hierarchical tree structure of importing relationship. See the definition of ModuleImportsNode:

class ModuleImportsNode:
    def __init__(self, mod, project_dir, imports: List['ModuleImportsNode'], **kwargs):
      ...

where attribute mod stands for the file or package itself, and list attribute imports holds other modules imported to itself.

Recursively iterate the imports attributes of the entry ModuleImportsNode object will given the entire importing relationship tree.

The complete API docs can be found here.

use the CLI

Usage: phy-resolve-imports [OPTIONS] FILE

  Resolve the imports of a python file or module, recursively.

  FILE: path to the entry code file.

Options:
  -f, --format [xml|png|svg]  Specify the output format  [default: xml]
  -o, --output PATH           Optional output file path.
  --help                      Show this message and exit.

For the CLI, current work directory will be used as the root directory to search within.

API docs

• module
• resolver
• types

These markdown docs are generated by pydoc-markdown:

pydoc-markdown -I src -m phy_imports_resolver --render-toc > docs/module.md

pydoc-markdown -I src -m phy_imports_resolver.resolver --render-toc > docs/resolver.md

pydoc-markdown -I src -m phy_imports_resolver.types --render-toc > docs/types.md

Reminder

This package DOES NOT support importlib to dynamically import modules, for the module imported by importlib can be variable and thus can only be determined at runtime; otherwise, if the the module imported by importlib is constant string, the developer can absolutely use import statement (non-top-placed) instead.