Bugs are fixed, features are added, often. Think of it like a print statement. Printing to a debug window is as easy as replacing print with sg.Print which will route your console output to a scrolling debug window. They are located in the folder DemoPrograms and there is also a Demo Programs folder for each of the PySimpleGUI ports. If you want to locate your window elsewhere, such as the system default of (0,0), if you have 2 ways of doing this. Then later your fix is posted with a new release on PyPI. It's THE spot on the Internet for this project. Instead of passing the filename only, pass in a fully qualified path and filename. You're a grown man/woman, act like it. You can post this file, email it, and easily import it using one statement. Separators popup_no_border Of course, in order to call the methods or access the object's class variables, you need to know the type of the underlying Widget being used. Note that you can use the same values for display_text and keys. They work exactly the same and are source code compatible between PySimpleGUI and PySimpleGUIQt. This resolved all of the button color problems. If set to False, then the input field's contents will be erased after every Window.read() call. "It looks like the 1990s" (this one is often said by people that were not alive in the 1990s) If you're curious about the math used to do the character to pixels conversion, it's quite crude, but functional. tkinter elements tend to STACK themselves. suppress_raise_key_errors - Disables raising a key error if a key or a close match are not found Used to cancel meter early. 2. If no key is set, then the button text is returned. But here there is no heading so it's filled in with any value you want. Some of the more "Heavily Travelled Elements" (and methods/functions) have "shortcuts". tkinter, however does NOT.... of course.... follow this convention. Specifies the amount of room reserved for the Element. You get the same Elements on the Pi as you do Windows and Linux. A "Menu entry" is a string that specifies: Shows a non-blocking popup window with auto-close, Tree Element partially done (don't use despite it showing up). The advantage of you making your own is that they will be in your own name space and thus will not have the typical sg. Clicking "Plot" will create the Matplotlib window. To make it easier to see the Column in the window, the Column background has been shaded blue. Well, there are a few quirks, and problems of course. Thou shalt not re-use a windows's layout.... ever! Students can not only post their homework easily for their teacher to access, but teachers can also run the students programs online. For Buttons, the text on the button is that button's key. They also show you integration techiques to other packages that have been figured out for you. Paid professional help has been deployed a number of critical times in the project's history. Abuse it an bad things will happen. This results in a very powerful capability - working in your own units, and then displaying them in an area defined in pixels. As a result, the dictionary is updated with this default value and in return the file is written with this value as well. Mac crash fixed - tkinter.TclError: expected boolean value but got "" (hopefully) So enjoy your package. This would change our previous example to: When you define the multiline element in your layout, its key will need to have this suffix added too. There are now 126 themes to choose from. Tabs are another of PySimpleGUI "Container Elements". Modal windows If you wish to do this in 1 line of code, here's your line: The delete helps with a problem multi-threaded application encounter where tkinter complains that it is being called from the wrong thread (not the program's main thread). It works as follows. If you set your X value to be larger than the width of your primary monitor, then you window will be created on the monitor that is located to the RIGHT of your primary monitor.]. Since we've been discussing list comprehensions, let's use them to create this row. Hopefully this will not slow things down considerably. Use this as a "target" for your bind and you'll get the event back via window.read(). Keys are an extremely important concept for you to understand. If your variable's value is too long and doesn't fit, then you'lll need to collect this information using the "Main Debugger Window". Perform an element look-up or use a variable containing an element, and call the set_cursor method, passing in a string that selects the cursor. It means if your width is > 20 (DEFAULT_PIXEL_TO_CHARS_CUTOFF), then it is assumed you're talking pixels, not characters. These can often be simple 1-line popup calls. Make some simple windows. The "Simple" of PySimpleGUI describes how easy it is to use, not the nature of the problem space it solves. No kidding this is a valid program and it uses Elements and produce the same Widgets like you normally would in a tkinter program. The code we're writing is the layout of the GUI itself. In addition to displaying information, getting paths to packages, finding version information, you can execute code from the PySimpleGUI Debugger's REPL >>> prompt. You can see this line when in the "Write" mode for the Issue.. Putting it all together we end up with an "event loop" that looks something like this: You will very often see the examples and demo programs write this check as: The keyword in means to check the list of things to see if the event is in that list (or tuple), Instead of 'Exit' use the name/key of the button you want to exit the window (Cancel, Quit, etc.). You can change this on a global basis using a call to SetOptions, or on an element basis. If the implementation is easy to explain, it may be a good idea. Can even click through, Same as Window icon parameter. Sometimes the documentation doesn't match exactly the version of the code you're running. Not working on Linux, Combo - Fix for not allowing a "0" to be specified as the default. It's through user's creating applications that new problems and needs are discovered. This method returns the table that is currently being shown in the GUI. Sometimes you have input elements (e.g. Quick patch to remove f-string for 3.5 compat. Meant to help with regression testing, Warning for Mac's when trying to change button color, New parms for Button.Update - image_size and image_subsample, Buttons - remove highlight when border depth == 0, OneLineProgressMeter - better layout implementation, disable_minimize - New parameter for Window, Debug Window no longer re-routes stdout by default, Can re-route by specifying in Print / EasyPrint call, Disabled Input Text are now 'readonly' instead of disabled, Tab, tabgroup right click menu (unsure if works correctly), Window icon can be filename or bytes (Base64 string), Attempted to use Styles better with Combobox, Fixed bug blocking setting bar colors in OneLineProgressMeter, Added type hints to some portions of the code, Image sizing and subsample for Button images, Attempt at specifying size of Column elements (limited success), New vertical_scroll_only parameter - NOTE - will have to disable to get horizontal scrollbars, New feature - Icons for tree entries using filename or Base64 images, Fix for bug sending back continuous mouse events, New parameter silence_on_error for FindElement / Element calls, Calendar Chooser stays on top of other windows, Fixed bug of no column headings for Tables, PopupAnimated - A popup call for showing "loading" type of windows, Caught exceptions when main program shut down with X, Caught exceptions in all of the graphics primitives, Added parameter exportselection=False to Listbox so can use multiple listboxes, OneLineProgressMeter - Can now change the text on every call if desired, Enable Radio Buttons to be in different containers, Ability to modify Autoscroll setting in Multiline.Update call, PopupGetFolder, PopupGetFile, PopupGetText - title defaults to message if none provided, PopupAnimated - image_source can be a filename or bytes (base64). But I ran into multiwindow problems. Divide your GUI up into rows EVERY one of those "thank you" phrases, no matter how small you may think it is, helps tremendously. There is no requirement to install the Python interpreter on the PC you wish to run it on. Installation of the packages, you'll need to install PySimpleGUI and PyInstaller (you need to install only once). - popup_cancel For example, this layout has a single slider element that spans several rows followed by 7 Text and Input elements on the same row. The auto-centering (default) location for your PySimpleGUI window may not be correct if you have multiple monitors on a Linux system. This definition is one of those lists. You can turn other popup calls into non-blocking popups if they have a non_blocking parameter. Combining PySimpleGUI with PyInstaller creates something truly remarkable and special, a Python program that looks like a Windows WinForms application. Some of the most reluctant of people to try PySimpleGUI have turned out to be some of the biggest supporters. Previously had to fully spell out, StatusBar Element - justification can be specified with a single character. Buttons are the most important element of all! Text Elements can be specified as Text, Txt, and T. This allows you to write really compact code. * To make updates (changes), to an element that's in the window. The reason is because they didn't originate in Python. But in the world of GUIs where do "prints" fit in? There has been an elusive problem where clicking on or near the table's header caused tkinter to go crazy and resize the columns continuously as you moved the mouse. tkinter events must be in between angle brackets. A window's "layout" is simply a list of lists of elements. You don't have to find and delete any PySimpleGUI.py files. It will work. If you want to avoid this, then perhaps it's best that you work with a dictionary within your code and then explicitly save your dictionary when you're ready to commit it to disk. This is one attempt to find out. In the face of ambiguity, refuse the temptation to guess. Keyboard keys return 2 types of key events. In particular the heading information, column widths, etc.. That's essentially what was needed, the ability to tell tkinter that this widget should never get focus. Now it's done for you instead of nagging you. The first is to simply throw a simple GUI onto the front of an existing command line application. The architecture is quite simple. Progress Meters are not easy to work with because the windows have to be non-blocking and they are tricky to debug. Beginning in version 3.17 you can create Elements that are initially invisible that you can later make visible. If you wanted to test for "no event" in your loop, it would be written like this: Use async windows sparingly. As a result, if you want to use the plain PySimpleGUI running on tkinter, you should be using 3.7.2 or less. What is it? It does the layout, boilerplate code, creates and manages the GUI Widgets for you and presents you with a simple, efficient interface. Previously Button would CLOSE the window when clicked. This is one reason why PyCharm is suggested as your IDE... it does a fantastic job of displaying documentation as you type in your code. Closing it caused a memory leak within tkinter, Disable close on one_line_progress_meter. To make the code for specifying the folder and filename as simple as possible, the 2 parts are separated in the call specifying the name of the settings file. Exiting this window is done via the little red X, or using the rickt-click menu which is also used as one way to launch the Main Debugger Window. It's not painful for most people. You'll find all of the UserSettings methods available to you detailed in the Call Reference documentation. In PySimpleGUI, the tkinter port, there is no HorizontalSeparator Element. You add them to your local name space so you no longer need the sgl. The "old CamelCase" are still in place and will be for quite some time, Can mix and match at will if you want, but suggest picking one and sticking with it, All docs and demo programs will need to be changed, Internally saving parent row frame for layout checks, Warnings on all Update calls - checks if Window.Read or Window.Finalize has been called, Warning if a layout is attempted to be used twice, Shows an "Error Popup" to get the user's attention for sure, Removed all element-specific SetFocus methods and made it available to ALL elements, Listbox - no_scrollbar parameter added. Your code will be understandable by other PySimpleGUI programmers as well. It is 2 lines of Python code to create and start a thread. Not displays closer to where mouse entered or edited, New Element.Widget base class variable. They both have an optional second parameter that represents a "default value" should the key not be found in the dictionary. They're difficult for beginners to grasp and they're a bit of a pain in the ass to deal with. By default the PySimpleGUI color theme is now Dark Blue 3. popup_get_file shows an Open File dialog box while popup_get_folder shows an Open Folder dialog box. If you installed Python from python.org, then it's likely you can use the non-ttk buttons should you wish. Normal menu bars cannot have their background color changed. The design pattern for Persistent Windows was already shown to you earlier in the document... here it is for your convenience. Themes names that you specify can be "fuzzy". tkinter has a bug on Macs that will crash the program is a file_type is attempted so that feature had to be removed. You'll score much higher points on the impressive meter if you're able to use a lot less CPU time by using this type of read. First PyPI release to use new documentation! PySimpleGUIWx - WxPython version A few tips that have worked well for others. This consists of a pair of functions, OneLineProgressMeter and OneLineProgressMeterCancel. or If not, then say something.... drop an email to comments@PySimpleGUI.org. Just be aware there could be problems using the debugger to debug due to both using tkinter. The background is set to the same color as the button background so that they blend together. Do you have the desire to share your code with other people in your department, or with friends and family? You can name your variables however you want. The "high-low" answer game comes to mind where you try to guess the number based on high or low tips. After you have completed making your layout, stored in a variable called layout in these examples, you will create your window. One other little bit of polish you can add are separators in your list. These buttons pop up a calendar chooser window. This meant classes could be used to build and use it, but classes can not be part of the code the user writes. They are installed separately and the imports are different. A "Text Element" in PySimpleGUI == "Label Widget" in tkinter. key = '-NAME-'. Actively maintained and enhanced - 4 ports are underway, all being used by users. ), Flag ENABLE_TK_WINDOWS = False. Hooked up background color parameter that was already there but not functional, write_event_value - fixed race conditions, Window.read() and read_all_windows() now checks the thread queue for events before starting tkinter's mainloop in case events are queued, Window.set_cursor added so that window's cursor can be set just like can be set for individual elements, Icon is now set when no_window option used on popup_get_file or popup_get_folder, Reformatted the theme definitions to save a LOT of lines of code, Added a class interface for User Settings, Can still use the function interface if desired, One advantage of class is that [ ] can be used to get and set entries, Looks and acts much like a "persistent global dictionary", The User Settings function interfaces now use the class, Function added that will display a popup and add to the clipboard data needed for GitHub Issues, Added button to Test Harness to display the popup with version data. This should be viewed as a teaching and demonstration aid. Normally you'll call this function like this: If you have a lot of these in your program, it won't get too long until you're tired of typing sg.cprint, so, why not make it super easy on yourself and type cp instead. To disable the events, disable the button using its Update method. Your first input element will be accessed as values[0], just like a list would look. This program will run commands and display the output in the scrollable window. See instructions in Installation section for more info. This call will create a scrolled box 80 characters wide and a height dependent upon the number of lines of text. I ended up defining it as - attempt to use language constructs in a natural way and to exploit some of Python's interesting features. And sometimes a mix like on the Slider element (characters long by pixels wide). For basic letters and numbers there is no great differences, but when you start adding Shift and Control or special keyus, they all behave slightly differently. Enter You don't have to follow it, but most Python programmers do. All the standard ones are there in a single window. This value will be the value of TIMEOUT_KEY. Set width = 0 so no outline will be drawn, Graph.draw_polygon - new drawing method! One of the areas that is unique to PySimpleGUI is how a window's "layout" is defined, specified or built. This design pattern does not specify a key for the InputText element, so its key will be auto-numbered and is zero in this case. A File Browse button located inside of a Column is unable to target elements outside of that Column. The entire set of operations is shown in this window: By convention you'll find many modules have a variable __version__ that has the package's version number. They have a visibility parameter but calling update will not change it. OneLineProgressMeter function added which gives you not only a one-line solution to progress meters, but it also gives you the ability to have more than 1 running at the same time, something not possible with the EasyProgressMeterCall. * 'data - in-ram bitmap or other "raw" image. The Output Element This loop will read button values and print them. Finally the efficient multi-window solution, No longer need to do round-robin type scheduling, Easily convert existing programs from single to multi-windows, Demo programs with multi-window design patterns all updated, Ideal for "floating palette / toolbar" window adds-ons, Can read with timeout including timeout=0, reset to previous theme following preview, colors can use the single string "foreground on background" color format, update_bar combined with update for a single update interface, 3 options to control how lookup errors are handled, file, function, line #, actual line of code with error, will automatically try to continue with best matching key, can assert with key error if desired (true by default), Up/down arrow bindings for spinner if enabling events, new justification parameter on creation and update, cprint - justification parameter added - note tricky to set color of single word but possible, Added mousewheel for Linux return_keyboard_events enabled, Added get_globals function for extending easier, Image element - can clear image by not setting any parameters when calling update, Column Element's Widget member variable now being set, Early experimental "Move all windows in sync" when using grab_anywhere (coming soon), pin - new function to place an element in a layout that will hold its position, border_width added to Canvas and Graph (so that they will default to 0), button color will match theme's button color, background color set correctly when readonly indicated, spin button color set to background color of spinner, spin arrow color automatically set to text color, Bad element key popup - fix for displaying correct line info in some situations, Window.visiblity_changed now refreshes the window, Added Column.contents_changed which will update the scrollbar so corrently match the contents, Separators expand only in 1 direction now, Added 8 SYMBOLS: Exactly like the Matplotlib example is you have many widgets to choose from Python, functions behave like... 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