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A tool for converting dictionary files aka glossaries. Mainly to help use our offline glossaries in any Open Source dictionary we like on any modern operating system / device.

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PyGlossary

A tool for converting dictionary files aka glossaries.

The primary purpose is to be able to use our offline glossaries in any Open Source dictionary we like on any OS/device.

There are countless formats, and my time is limited, so I implement formats that seem more useful for myself, or for Open Source community. Also diversity of languages is taken into account. Pull requests are welcome.

Screenshots

Linux - Gtk3-based interface


Windows - Tkinter-based interface


Linux - command-line interface


Android Termux - interactive command-line interface

Supported formats

Format Extension Read Write
Aard 2 (slob) 🔢 .slob
ABBYY Lingvo DSL 📝 .dsl
Almaany.com (SQLite3, Arabic) 🔢 .db
AppleDict Binary 🔢 .dictionary
AppleDict Source 📁
Babylon BGL 🔢 .bgl
CC-CEDICT (Chinese) 📝
cc-kedict (Korean) 📝
CSV 📝 .csv
Dict.cc (SQLite3, German) 🔢 .db
DICT.org / Dictd server 📁 (📝.index)
DICT.org / dictfmt source 📝 (.dtxt)
dictunformat output file 📝 (.dictunformat)
DictionaryForMIDs 📁 (📁.mids)
DigitalNK (SQLite3, N-Korean) 🔢 .db
DIKT JSON 📝 (.json)
EDLIN 📁 .edlin
EPUB-2 E-Book 📦 .epub
FreeDict 📝 .tei
Gettext Source 📝 .po
HTML Directory (by file size) 📁
JMDict (Japanese) 📝
JSON 📝 .json
Kobo E-Reader Dictionary 📦 .kobo.zip
Kobo E-Reader Dictfile 📝 .df
Lingoes Source 📝 .ldf
Mobipocket E-Book 🔢 .mobi
Octopus MDict 🔢 .mdx
Sdictionary Binary 🔢 .dct
Sdictionary Source 📝 .sdct
SQL 📝 .sql
StarDict 📁 (📝.ifo)
StarDict Textual File 📝 (.xml)
Tabfile 📝 .txt, .tab
Wordset.org 📁
XDXF 📝 .xdxf
Yomichan 📦 (.zip)
Zim (Kiwix) 🔢 .zim

Legend:

  • 📁 Directory
  • 📝 Text file
  • 📦 Package/archive file
  • 🔢 Binary file
  • Supported
  • Will not be supported

Note: SQLite-based formats are not detected by extension (.db); So you need to select the format (with UI or --read-format flag). Also don't confuse SQLite-based formats with SQLite mode.

Requirements

PyGlossary requires Python 3.8 or higher, and works in practically all modern operating systems. While primarily designed for GNU/Linux, it works on Windows, Mac OS X and other Unix-based operating systems as well.

As shown in the screenshots, there are multiple User Interface types (multiple ways to use the program).

  • Gtk3-based interface, uses PyGI (Python Gobject Introspection) You can install it on:

    • Debian/Ubuntu: apt install python3-gi python3-gi-cairo gir1.2-gtk-3.0
    • openSUSE: zypper install python3-gobject gtk3
    • Fedora: dnf install pygobject3 python3-gobject gtk3
    • ArchLinux:
    • Mac OS X: brew install pygobject3 gtk+3
    • Nix / NixOS: nix-shell -p pkgs.gobject-introspection python38Packages.pygobject3 python38Packages.pycairo
  • Tkinter-based interface, works in the lack of Gtk. Specially on Windows where Tkinter library is installed with the Python itself. You can also install it on:

    • Debian/Ubuntu: apt-get install python3-tk tix
    • openSUSE: zypper install python3-tk tix
    • Fedora: yum install python3-tkinter tix
    • Mac OS X: read https://www.python.org/download/mac/tcltk/
    • Nix / NixOS: nix-shell -p python38Packages.tkinter tix
  • Command-line interface, works in all operating systems without any specific requirements, just type:

    python3 main.py --help

    • Interactive command-line interface
      • Requires: pip3 install prompt_toolkit
      • Perfect for mobile devices (like Termux on Android) where no GUI is available
      • Automatically selected if output file argument is not passed and one of these:
        • On Linux and $DISPLAY environment variable is empty or not set
          • For example when you are using a remote Linux machine over SSH
        • On Mac and no tkinter module is found
      • Manually select with --cmd or --ui=cmd
        • Minimally: python3 main.py --cmd
        • You can still pass input file, or any flag/option
      • If both input and output files are passed, non-interactive cmd ui will be default
      • If you are writing a script, you can pass --no-interactive to force disable interactive ui
        • Then you have to pass both input and output file arguments
      • Don't forget to use Up/Down or Tab keys in prompts!
        • Up/Down key shows you recent values you have used
        • Tab key shows available values/options
      • You can press Control+C (on Linux/Windows) at any prompt to exit

UI (User Interface) selection

When you run PyGlossary without any command-line arguments or options/flags, PyGlossary tries to find PyGI and open the Gtk3-based interface. If it fails, it tries to find Tkinter and open the Tkinter-based interface. If that fails, it tries to find prompt_toolkit and run interactive command-line interface. And if none of these libraries are found, it exits with an error.

But you can explicitly determine the user interface type using --ui

  • python3 main.py --ui=gtk
  • python3 main.py --ui=tk
  • python3 main.py --ui=cmd

Installation on Windows

  • Download and install Python (3.8 or above is recommended)
  • Open Start -> type Command -> right-click on Command Prompt -> Run as administrator
  • To ensure you have pip, run: python -m ensurepip --upgrade
  • To install, run: pip install --upgrade pyglossary
  • Now you should be able to run pyglossary command
  • If command was not found, make sure Python environment variables are set up:

Feature-specific requirements

  • Using --remove-html-all flag

    sudo pip3 install lxml beautifulsoup4

Some formats have additional requirements. If you have trouble with any format, please check the link given for that format to see its documentations.

Using Termux on Android? See doc/termux.md

Configuration

See doc/config.rst.

Direct and indirect modes

Indirect mode means the input glossary is completely read and loaded into RAM, then converted into the output format. This was the only method available in old versions (before 3.0.0).

Direct mode means entries are one-at-a-time read, processed and written into output glossary.

Direct mode was added to limit the memory usage for large glossaries; But it may reduce the conversion time for most cases as well.

Converting glossaries into these formats requires sorting entries:

That's why direct mode will not work for these formats, and PyGlossary has to switch to indirect mode (or it previously had to, see SQLite mode).

For other formats, direct mode will be the default. You may override this by --indirect flag.

SQLite mode

As mentioned above, converting glossaries to some specific formats will need them to loaded into RAM.

This can be problematic if the glossary is too big to fit into RAM. That's when you should try adding --sqlite flag to your command. Then it uses SQLite3 as intermediate storage for storing, sorting and then fetching entries. This fixes the memory issue, and may even reduce running time of conversion (depending on your home directory storage).

The temporary SQLite file is stored in cache directory then deleted after conversion (unless you pass --no-cleanup flag).

SQLite mode is automatically enabled for writing these formats if auto_sqlite config parameter is true (which is the default). This also applies to when you pass --sort flag for any format. You may use --no-sqlite to override this and switch to indirect mode.

Currently you can not disable alternates in SQLite mode (--no-alts is ignored).

Sorting

There are two things than can activate sorting entries:

  • Output format requires sorting (as explained above)
  • You pass --sort flag in command line.

In the case of passing --sort, you can also pass:

  • --sort-key to select sort key aka sorting order, see doc/sort-key.md

  • --sort-locale to sort based on a given locale, for example --sort-locale=fa_IR.UTF-8

    • Sorts words in the given language in the correct alphabetical order of that language
    • If this language uses a non-Latin script, all words in this language are sorted before ASCII/Latin words
  • --sort-encoding to change the encoding used for sort

    • UTF-8 is the default encoding for all sort keys and all output formats (unless mentioned otherwise)
    • This will only effect the order of entries, and will not corrupt words / definition
    • Non-encodable characters are replaced with ? byte (only for sorting)
    • Conflicts with --sort-locale

Cache directory

Cache directory is used for storing temporary files which are either moved or deleted after conversion. You can pass --no-cleanup flag in order to keep them.

The path for cache directory:

  • Linux or BSD: ~/.cache/pyglossary/
  • Mac: ~/Library/Caches/PyGlossary/
  • Windows: C:\Users\USERNAME\AppData\Local\PyGlossary\Cache\

User plugins

If you want to add your own plugin without adding it to source code directory, or you want to use a plugin that has been removed from repository, you can place it in this directory:

  • Linux or BSD: ~/.pyglossary/plugins/
  • Mac: ~/Library/Preferences/PyGlossary/plugins/
  • Windows: C:\Users\USERNAME\AppData\Roaming\PyGlossary\plugins\

Using PyGlossary as a Python library

There are a few examples in doc/lib-examples directory.

Here is a basic script that converts any supported glossary format to Tabfile:

import sys
import pyglossary
from pyglossary import Glossary

# Glossary.init() should be called only once, so make sure you put it
# in the right place
Glossary.init()

glos = Glossary()
glos.convert(
	inputFilename=sys.argv[1],
	outputFilename=f"{sys.argv[1]}.txt",
	# although it can detect format for *.txt, you can still pass outputFormat
	outputFormat="Tabfile",
	# you can pass readOptions or writeOptions as a dict
	# writeOptions={"encoding": "utf-8"},
)

You may look at docstring of Glossary.convert for full list of keyword arguments.

If you need to add entries inside your Python program (rather than converting one glossary into another), then you use write instead of convert, here is an example:

from pyglossary.glossary import Glossary

Glossary.init()

glos = Glossary()
mydict = {
	"a": "test1",
	"b": "test2",
	"c": "test3",
}
for word, defi in mydict.items():
	glos.addEntryObj(glos.newEntry(
		word,
		defi,
		defiFormat="m",  # "m" for plain text, "h" for HTML
	))

glos.setInfo("title", "My Test StarDict")
glos.setInfo("author", "John Doe")
glos.write("test.ifo", format="Stardict")

And if you need to read a glossary from file into a Glossary object in RAM (without immediately converting it), you can use glos.read(filename, format=inputFormat). Be wary of RAM usage in this case.

Internal glossary structure

A glossary contains a number of entries.

Each entry contains:

  • Headword (title or main phrase for lookup)
  • Alternates (some alternative phrases for lookup)
  • Definition

In PyGlossary, headword and alternates together are accessible as a single Python list entry.l_word

entry.defi is the definition as a Python Unicode str. Also entry.b_defi is definition in UTF-8 byte array.

entry.defiFormat is definition format. If definition is plaintext (not rich text), the value is m. And if it's in HTML (contains any html tag), then defiFormat is h. The value x is also allowed for XFXF, but XDXF is not widely supported in dictionary applications.

There is another type of entry which is called Data Entry, and generally contains an image, audio, css, or any other file that was included in input glossary. For data entries:

  • entry.s_word is file name (and l_word is still a list containing this string),
  • entry.defiFormat is b
  • entry.data gives the content of file in bytes.

Entry filters

Entry filters are internal objects that modify words/definition of entries, or remove entries (in some special cases).

Like several filters in a pipe which connects a reader object to a writer object (with both of their classes defined in plugins and instantiated in Glossary class).

You can enable/disable some of these filters using config parameters / command like flags, which are documented in doc/config.rst.

The full list of entry filters is also documented in doc/entry-filters.md.

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A tool for converting dictionary files aka glossaries. Mainly to help use our offline glossaries in any Open Source dictionary we like on any modern operating system / device.

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