mansel 0.0.1

Library for manual file selection

mansel

mansel is a Python library and command line tool for manually selecting files and directories from a tree view.

Features

• Graphical user interface with a tree view of the directory structure.
• Support for pre-selection of paths in the directory tree.
• Running total of the size of selected directories and files.
• Running total of selection size calculated in a background thread.

Installation

mansel can be installed with pip:

pip install mansel

However, mansel needs Python Qt bindings in order to be useful. It is compatible with both PyQt5 and PySide2 so either

pip install mansel PySide2

or

pip install mansel PyQt5

will do. A Python Qt binding library is the only explicit dependency, though obviously that will have its own dependency on Qt itself.

Usage

mansel can be run from the command-line with

python -m mansel --path PATH --selection SELECTION

In this case, it behaves similarly to the mansel command provided by the mansel-cli distribution.

When using mansel in a larger Qt project, there are two main classes for interfaces for working with the manual file selection:

1. UIDialog(root_path, selection, parent): a complete dialog window displaying a tree view of a file system with checkboxes for all entries.

• root_path: top level directory to show in the tree view of the file ssytem.
• selection: list of paths relative to the root_path of files that should be selected when the dialog window is first shown.
• parent: parent Qt object for the dialog window.

2. CheckableFileSystemModel: a data model of a file system that supports selecting items from a tree view.

Contributing

mansel is distributed under the permissive 0BSD license. Outside contirubtions are welcome. Contributions should be licensed under the 0BSD license. If you want your name added to the contributors list, add it to AUTHORS.md as part of your submission.

While the license does not require acknowledgement, acknowledgement is still appreciated if you use mansel in your project. If you make improvements to mansel, please share them if sharing is feasible.

Related projects

• treesel provides a terminal-based tree view of a directory for selecting a file to print to stdout. However, it only allows for a single file to be selected. Before writing mansel some effort was spent looking for an existing project that could select and print files but treesel was not found. It was found later when doing a search to see if the name treeselect was available for a Python package.
• Urwid is a Python terminal interface library. One of the example projects in the Urwid documentation is a file browser naemd browse.py which allows for multiple selection of files and then prints out the file paths on exit.
• fzf is a terminal program that allows for selection of file paths through fuzzy finding of the path strings. There are many similar projects (see fzf's releated projects list). fzf does not have a tree view but it does allow selecting and printing multiple file paths to stdout.

Future directions

mansel meets its original design requirements (tree view file selection with the ability to preselect some files and with a running sum of the selected files' sizes). Here are some possible future improvements that could be made:

• Implement a console version. This implementation would likely be based on treesel (using the curses module) or Urwid's browse.py. Alternatively, it could use Prompt Toolkit.

• Improve continuous integration:

  • Run tests on new commits
  • Run nightly tests against latest versions of dependencies
  • Add pylint and pycodestyle tests
  • Add UI tests that click on checkboxes and buttons

• Improve packaging:

  • Create PyPI package
  • Create conda package
  • Create other packages (PyInstaller? Linux snap package?)