26 KiB

Raw Blame History

Gooey (Beta)

Turn (almost) any Python 2 or 3 Console Program into a GUI application with one line

Gooey now supports Python 3!!

Gooey
Table of contents
Latest Update
Quick Start
What It Is
Why Is It
Who is this for
How does it work
Internationalization
Global Configuration
Local Configuarion
Run Modes
Input Validation
Customizing Icons
Packaging
Screenshots
Contributing
Image Credits

Quick Start

Installation instructions

The easiest way to install Gooey is via pip

pip install Gooey

Alternatively, you can install Gooey by cloning the project to your local directory

git clone https://github.com/chriskiehl/Gooey.git

run setup.py

python setup.py install

NOTE: Python 2 users must manually install WxPython! Unfortunately, this cannot be done as part of the pip installation and should be manually downloaded from the wxPython website.

Usage

Gooey is attached to your code via a simple decorator on whichever method has your argparse declarations (usually main).

from gooey import Gooey

@Gooey      <--- all it takes! :)
def main():
  parser = ArgumentParser(...)
  # rest of code

Different styling and functionality can be configured by passing arguments into the decorator.

# options
@Gooey(advanced=Boolean,          # toggle whether to show advanced config or not 
       language=language_string,  # Translations configurable via json
       show_config=True,          # skip config screens all together
       target=executable_cmd,     # Explicitly set the subprocess executable arguments
       program_name='name',       # Defaults to script name
       program_description,       # Defaults to ArgParse Description
       default_size=(610, 530),   # starting size of the GUI
       required_cols=1,           # number of columns in the "Required" section
       optional_cols=2,           # number of columbs in the "Optional" section
       dump_build_config=False,   # Dump the JSON Gooey uses to configure itself
       load_build_config=None,    # Loads a JSON Gooey-generated configuration
       monospace_display=False)   # Uses a mono-spaced font in the output screen
)
def main():
  parser = ArgumentParser(...)
  # rest of code

See: How does it Work section for details on each option.

Gooey will do its best to choose sensible widget defaults to display in the GUI. However, if more fine tuning is desired, you can use the drop-in replacement GooeyParser in place of ArgumentParser. This lets you control which widget displays in the GUI. See: GooeyParser

from gooey import Gooey, GooeyParser

@Gooey
def main():
  parser = GooeyParser(description="My Cool GUI Program!") 
  parser.add_argument('Filename', widget="FileChooser")
  parser.add_argument('Date', widget="DateChooser")
  ...

Examples

Gooey downloaded and installed? Great! Wanna see it in action? Head over the the Examples Repository to download a few ready-to-go example scripts. They'll give you a quick tour of all Gooey's various layouts, widgets, and features.

Direct Download

What is it?

Gooey converts your Console Applications into end-user-friendly GUI applications. It lets you focus on building robust, configurable programs in a familiar way, all without having to worry about how it will be presented to and interacted with by your average user.

Why?

Because as much as we love the command prompt, the rest of the world looks at it like an ugly relic from the early '80s. On top of that, more often than not programs need to do more than just one thing, and that means giving options, which previously meant either building a GUI, or trying to explain how to supply arguments to a Console Application. Gooey was made to (hopefully) solve those problems. It makes programs easy to use, and pretty to look at!

Who is this for?

If you're building utilities for yourself, other programmers, or something which produces a result that you want to capture and pipe over to another console application (e.g. *nix philosophy utils), Gooey probably isn't the tool for you. However, if you're building 'run and done,' around-the-office-style scripts, things that shovel bits from point A to point B, or simply something that's targeted at a non-programmer, Gooey is the perfect tool for the job. It lets you build as complex of an application as your heart desires all while getting the GUI side for free.

How does it work?

Gooey is attached to your code via a simple decorator on whichever method has your argparse declarations.

@Gooey
def my_run_func():
  parser = ArgumentParser(...)
  # rest of code

At run-time, it parses your Python script for all references to ArgumentParser. (The older optparse is currently not supported.) These references are then extracted, assigned a component type based on the 'action' they provide, and finally used to assemble the GUI.

Mappings:

Gooey does its best to choose sensible defaults based on the options it finds. Currently, ArgumentParser._actions are mapped to the following WX components.

Parser Action	Widget	Example
store	TextCtrl
store_const	CheckBox
store_true	CheckBox
store_False	CheckBox
append	TextCtrl
count	DropDown
Mutually Exclusive Group	RadioGroup
choice	DropDown

GooeyParser

If the above defaults aren't cutting it, you can control the exact widget type by using the drop-in ArgumentParser replacement GooeyParser. This gives you the additional keyword argument widget, to which you can supply the name of the component you want to display. Best part? You don't have to change any of your argparse code to use it. Drop it in, and you're good to go.

Example:

from argparse import ArgumentParser
....

def main(): 
    parser = ArgumentParser(description="My Cool Gooey App!")
    parser.add_argument('filename', help="name of the file to process")

Given then above, Gooey would select a normal TextField as the widget type like this:

However, by dropping in GooeyParser and supplying a widget name, you can display a much more user friendly FileChooser

from gooey import GooeyParser
....

def main(): 
    parser = GooeyParser(description="My Cool Gooey App!")
    parser.add_argument('filename', help="name of the file to process", widget='FileChooser')

Custom Widgets:

Widget	Example
DirChooser/FileChooser
DateChooser
PasswordField
Listbox

Internationalization

Gooey is international ready and easily ported to your host language. Languages are controlled via an argument to the Gooey decorator.

@Gooey(language='russian')
def main(): 
    ...

All program text is stored externally in json files. So adding new langauge support is as easy as pasting a few key/value pairs in the gooey/languages/ directory.

Thanks to some awesome contributers, Gooey currently comes pre-stocked with the following language sets:

English
Dutch
French
Portuguese

Want to add another one? Submit a pull request!

Global Configuration

Just about everything in Gooey's overall look and feel can be customized by passing arguments to the decorator.

Parameter Summary

encoding Text encoding to use when displaying characters (default: 'utf-8')

use_legacy_titles Rewrites the default argparse group name from "Positional" to "Required". This is primarily for retaining backward compatibilty with previous versions of Gooey (which had poor support/awareness of groups and did its own naive bucketing of arguments).

advanced Toggles whether to show the 'full' configuration screen, or a simplified version

auto_start Skips the configuration all together and runs the program immediately

language Tells Gooey which language set to load from the gooey/languages directory.

target Tells Gooey how to re-invoke itself. By default Gooey will find python, but this allows you to specify the program (and arguments if supplied).

program_name The name displayed in the title bar of the GUI window. If not supplied, the title defaults to the script name pulled from sys.argv[0].

program_description Sets the text displayed in the top panel of the Settings screen. Defaults to the description pulled from ArgumentParser.

default_size Initial size of the window

required_cols Controls how many columns are in the Required Arguments section
⚠️ Deprecation notice: See Group Parameters for modern layout controls

optional_cols Controls how many columns are in the Optional Arguments section
⚠️ Deprecation notice: See Group Parameters for modern layout controls

dump_build_config Saves a json copy of its build configuration on disk for reuse/editing

load_build_config Loads a json copy of its build configuration from disk

monospace_display Uses a mono-spaced font in the output screen
⚠️ Deprecation notice: See Group Parameters for modern font configuration

image_dir Path to the directory in which Gooey should look for custom images/icons

language_dir Path to the directory in which Gooey should look for custom languages files

disable_stop_button Disable the Stop button when running

show_stop_warning Displays a warning modal before allowing the user to force termination of your program

force_stop_is_error Toggles whether an early termination by the shows the success or error screen

show_success_modal Toggles whether or not to show a summary modal after a successful run

run_validators Controls whether or not to have Gooey perform validation before calling your program

poll_external_updates (Experimental!) When True, Gooey will call your code with a gooey-seed-ui CLI argument and use the response to fill out dynamic values in the UI (See: Using Dynamic Values)

progress_regex A text regex used to pattern match runtime progress information. See: Showing Progress for a detailed how-to

progress_expr A python expression applied to any matches found via the progress_regex. See: Showing Progress for a detailed how-to

disable_progress_bar_animation Disable the progress bar

navigation

Sets the "navigation" style of Gooey's top level window.
Options:

TABBED	SIDEBAR

navigation_title Controls the heading title above the SideBar's navigation pane. Defaults to: "Actions"

show_sidebar Show/Hide the sidebar in when navigation mode == SIDEBAR

body_bg_color HEX value of the main Gooey window

header_bg_color HEX value of the header background

header_height height in pixels of the header

header_show_title Show/Hide the header title

header_show_subtitle Show/Hide the header subtitle

footer_bg_color HEX value of the Footer background

sidebar_bg_color HEX value of the Sidebar's background

terminal_panel_color HEX value of the terminal's panel

terminal_font_color HEX value of the font displayed in Gooey's terminal

terminal_font_family Name of the Font Family to use in the terminal

terminal_font_weight Weight of the font (NORMAL

terminal_font_size Point size of the font displayed in the terminal

error_color HEX value of the text displayed when a validation error occurs

Group Configuration

Run Modes

Gooey has a handful of presentation modes so you can tailor its layout to your content type and user's level or experience.

Advanced

The default view is the "full" or "advanced" configuration screen. It has two different layouts depending on the type of command line interface it's wrapping. For most applications, the flat layout will be the one to go with, as its layout matches best to the familiar CLI schema of a primary command followed by many options (e.g. Curl, FFMPEG).

On the other side is the Column Layout. This one is best suited for CLIs that have multiple paths or are made up of multiple little tools each with their own arguments and options (think: git). It displays the primary paths along the left column, and their corresponding arguments in the right. This is a great way to package a lot of varied functionality into a single app.

Both views present each action in the Argument Parser as a unique GUI component. It makes it ideal for presenting the program to users which are unfamiliar with command line options and/or Console Programs in general. Help messages are displayed along side each component to make it as clear as possible which each widget does.

Setting the layout style:

Currently, the layouts can't be explicitely specified via a parameter (on the TODO!). The layouts are built depending on whether or not there are subparsers used in your code base. So, if you want to trigger the Column Layout, you'll need to add a subparser to your argparse code.

It can be toggled via the advanced parameter in the Gooey decorator.

@gooey(advanced=True)
def main():
    # rest of code

Basic

The basic view is best for times when the user is familiar with Console Applications, but you still want to present something a little more polished than a simple terminal. The basic display is accessed by setting the advanced parameter in the gooey decorator to False.

@gooey(advanced=False)
def main():
    # rest of code

No Config

No Config pretty much does what you'd expect: it doesn't show a configuration screen. It hops right to the display section and begins execution of the host program. This is the one for improving the appearance of little one-off scripts.

Input Validation

⚠️ Note! This functionality is experimental. Its API may be changed or removed alltogether. Feedback/thoughts on this feature is welcome and encouraged!

Gooey can optionally do some basic pre-flight validation on user input. Internally, it uses these validator functions to check for the presence of required arguments. However, by using GooeyParser, you can extend these functions with your own validation rules. This allows Gooey to show much, much more user friendly feedback before it hands control off to your program.

Writing a validator:

Validators are specified as part of the gooey_options map available to GooeyParser. It's a simple map structure made up of a root key named validator and two internal pairs:

test The inner body of the validation test you wish to perform
message the error message that should display given a validation failure

e.g.

gooey_options={
    'validator':{
        'test': 'len(user_input) > 3',
        'message': 'some helpful message'
    }
}

The test function

Your test function can be made up of any valid Python expression. It receives the variable user_input as an argument against which to perform its validation. Note that all values coming from Gooey are in the form of a string, so you'll have to cast as needed in order to perform your validation.

Full Code Example

from gooey.python_bindings.gooey_decorator import Gooey
from gooey.python_bindings.gooey_parser import GooeyParser

@Gooey
def main():
    parser = GooeyParser(description='Example validator')
    parser.add_argument(
        'secret',
        metavar='Super Secret Number',
        help='A number specifically between 2 and 14',
        gooey_options={
            'validator': {
                'test': '2 <= int(user_input) <= 14',
                'message': 'Must be between 2 and 14'
            }
        })

    args = parser.parse_args()

    print("Cool! Your secret number is: ", args.secret)

With the validator in place, Gooey can present the error messages next to the relevant input field if any validators fail.

Using Dynamic Values

⚠️ Note! This functionality is experimental. Its API may be changed or removed alltogether. Feedback on this feature is welcome and encouraged!

Gooey's Choice style fields (Dropdown, Listbox) can be fed a dynamic set of values at runtime by enabling the poll_external_updates option. This will cause Gooey to request updated values from your program everytime the user visits the Configuration page. This can be used to, for instance, show the result of a previous execution on the config screen without requiring that the user restart the program.

How does it work?

At runtime, whenever the user hits the Configuration screen, Gooey will call your program with a single CLI argument: gooey-seed-ui. This is a request to your program for updated values for the UI. In response to this, on stdout, your program should return a JSON string mapping cli-inputs to a list of options.

For example, assuming a setup where you have a dropdown that lists user files:

 ...
 parser.add_argument(
        '--load',
        metavar='Load Previous Save',
        help='Load a Previous save file',
        dest='filename',
        widget='Dropdown',
        choices=list_savefiles(),
    )

Here the input we want to populate is --load. So, in response to the gooey-seed-ui request, you would return a JSON string with --load as the key, and a list of strings that you'd like to display to the user as the value. e.g.

{"--load": ["Filename_1.txt", "filename_2.txt", ..., "filename_n.txt]}

Checkout the full example code in the Examples Repository. Or checkout a larger example in the silly little tool that spawned this feature: SavingOverIt.

Customizing Icons

Gooey comes with a set of six default icons. These can be overridden with your own custom images/icons by telling Gooey to search additional directories when initializing. This is done via the image_dir argument to the Goeey decorator.

@Gooey(program_name='Custom icon demo', image_dir='/path/to/my/image/directory')
def main():
    # rest of program

Images are discovered by Gooey based on their filenames. So, for example, in order to supply a custom configuration icon, simply place an image with the filename config_icon.png in your images directory. These are the filenames which can be overridden:

program_icon.ico
success_icon.png
running_icon.png
loading_icon.gif
config_icon.png
error_icon.png

Packaging

Thanks to some awesome contributers, packaging Gooey as an executable is super easy.

The tl;dr pyinstaller version is to drop this build.spec into the root directory of your application. Edit its contents so that the application and name are relevant to your project, then execute pyinstaller build.spec to bundle your app into a ready-to-go executable.

Detailed step by step instructions can be found here.