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And those widgets are presented to you in a unique and fun way. PySimpleGUI is becoming more and more popular. The number of installs and the number of successes grows daily. Pip installs have exceeded , in the first year of existence. Over people a day visit the GitHub and the project has 1, stars thank you awesome users! The number of ports is up to 4. The number of integrations with other technologies is constantly being expanded.

You've got no more than 5 or 10 minutes to lose. Caution is needed, however, when working with the unfinished ports. PySimpleGUI, the tkinter version, is the only fully complete port. Qt is next. All of its Elements are completed, but not all of the options of each element are done.

The feature set goes way beyond the requirements of a beginner programmer, and into the required features needed for complex multi-windowed GUIs. It's literally "simple" to do With the developer being the focus, the center of it all, it was important to keep this mindset at all times, including now, today. Why is this such a big deal?

Success 1 has to happen immediately. Installing and then running your first GUI program. FIVE minutes is the target. The Pip install is under 1 minute. Depending on your IDE and development environment, running your first piece of code could be a copy, paste, and run. This isn't a joke target; it's for real serious. Design an interface that both the complete beginner can understand and use that has enough depth that an advanced programmer can make some very nice looking GUIs amd not feel like they're playing with a "toy".

Success after success Make your development progress in a way you can run and test your code often. Add a little bit, run it, see it on your screen, smile, move on. The Cookbook and Demo Programs are there to fulfill this goal. First get the user seeing on their screen a working GUI that's similar in some way to what they want to create. Seeing your webcam running in the middle of a GUI window is quite a thrill if you're trying to integrate with the OpenCV package.

The Single Line Progress Meter is a good example. It requires one and only 1 line of code. 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.

This one is difficult for me to define. The important thing was what the user saw and experienced while coding, NOT the choices for naming conventions in the implementation code. I ended up defining it as - attempt to use language constructs in a natural way and to exploit some of Python's interesting features. Complete beginners can copy these standard design patterns or demo programs and modify them without necessarily understanding all of the nuts and bolts of what's happening.

For example, they can modify a layout by adding elements even though they may not yet grasp the list of lists concept of layouts. They will not have to write classes to use this package. The hope is that beginners that are interested in graphic design, and are taking a Python course, will have an easy way to express themselves, right from the start of their Python experience.

Even if they're not the best programmers they will be able express themselves to show custom GUI layouts, colors and artwork with ease. There is a noticeable gap in the Python GUI solution. Fill that gap and who knows what will happen. They are out of reach of the beginners. Often WAY out of reach. What a waste of characters. You might as well have just told them, "give up". Maybe there's no "there there". This is one attempt to find out. There is a "Troubleshooting" section towards the end of this document should you run into real trouble.

It goes into more detail about what you can do to help yourself. You should already have the underlying GUI Framework installed and perhaps tested. Some users have found that upgrading required using an extra flag on the pip --no-cache-dir. On some versions of Linux you will need to first install pip. Need the Chicken before you can get the Egg get it Some OS variants, such as Ubuntu, do not some with tkinter already installed.

If you get an error similar to:. In order for the docstrings to work correctly the typing module is used. In Python version 3. You'll see a warning printed on the console if this module isn't installed. However it's not a requirement as PySimpleGUI will run fine without typing installed as it's only used by the docstrings. It's not painful for most people. There is code in the PySimpleGUI package that upgrades your previously pip installed package to the latest version checked into GitHub.

Using this method when you're ready to install the next version from PyPI or you want to maybe roll back to a PyPI release, you only need to run pip. If you call sg. After you've pip installed, you can use the commands psgmain to run the test harness or psgupgrade to invoke the GitHub upgrade code. There have been problems on some machines when psgmain and psgupgrade are used to upgrade PySimpleGUI. The upgrade is in-place so there can be file locking problems. If you have trouble using these commands, then you can also upgrade using this command:.

The "Safest" approach is to call sg. If you run into a problem upgrading after upgrading from GitHub, you can likely use pip to uninstall, then re-install from PyPI to see if you can upgrade again from GitHub.

Once you have installed, or copied the. You can also use:. You will see a "test harness" that exercises the SDK, tells you the version number, allows you to try a number of features as well as access the built-in GitHub upgrade utility.

It's critical for you to be certain where your code is coming from and which version you're running. The quick way to find this out is to again, run Python from the command line.

This time you'll type:. This is critical information to know when debugging because it's really easy to forget you've got an old copy of PySimpleGUI laying around somewhere.

It's that simple! You can also get the version you are running by also printing. Often the sequence of events is that a bug you've reported was fixed and checked into GitHub. Then later your fix is posted with a new release on PyPI. You'll want to delete the GitHub one before you install from pip. Even runs on pypy3. There are instructions on how to create an EXE at the bottom of this document. It's a simple front-end to pyinstaller. It's a DAY typically from 1 to 8 hours. Or, if you're really really new, perhaps as much as a week to get used to.

So, we're not talking about you needing to learn to flap your arms and fly. If you found this package, then you're a bright person :- Have some confidence in yourself for Christ sake Not going to lead you off some cliff, promise!

Some IDEs provide virtual environments, but it's optional. PyCharm is one example. For these, you will either use their GUI interface to add packages or use their built-in terminal to do pip installs. It's not recommended for beginners to be working with Virtual Environments. They can be quite confusing. However, if you are a seasoned professional developer and know what you're doing, there is nothing about PySimpleGUI that will prevent you from working this way.

IDLE, Spyder, and Thonny all have known, demonstrable, problems with intermittent or inconsistent results, especially when a program exits and you want to continue to work with it. The official list of supported IDEs is: 1.

Wing 3. Visual Studio. Just be aware there could be problems using the debugger to debug due to both using tkinter. Beginning with the 4. Why is this important? Don't know the parameters and various options for the InputText Element?

It's a piece of cake with PyCharm. You can set PyCharm to automatically display documentation about the class, function, method, etc, that your cursor is currently sitting on.

When you do, you'll be treated to a window similar to this:. Note that my cursor is on InputText. On the left side of the screen, the InputText element's parameters are not just shown to you, but they are each individually described to you, and, the type is shown as well. I mean, honestly, how much more could you ask for? OK, I suppose you could ask for a smaller window that just shows the parameters are you're typing them in.

When you do, you'll be treated to a little window like this one:. So enjoy your package. They're NEXT in line to be better documented. Work on a tool has already begun to make that happen sooner than later. In version 4. This new format more clearly specified the types for each parameter. It will take some time to get all of the parameter types correctly identified and documented.

Pay attention when you're working with PyCharm and you'll see where you may have a mismatch It will shade your code in a way that makes mismatched types very clear to see.

Yes, it's just that easy to have a window appear on the screen using Python. The goal is to get you running on your GUI within minutes , not hours nor days. Things like Table colors stopped working entirely. March - Still not quite sure if all issues have been ironed out with tkinter in the 3. On December 31, the Python 2. Sorry but Legacy Python has no permanent home here.

The security experts claim that supporting 2. I understand why. There are some very narrow cases where 2. Beginning with release 4. It is being added, as quickly as possible, to all of the ports. As long as you know you're sticking with tkinter for the short term, it's safe to use the new bindings. Why the need for these bindings? This has not caused any problems and few complaints, but it's important the the interfaces into PySimpleGUI be compliant.

Perhaps one of the reasons for lack of complaints is that the Qt library also uses SnakeCase for its methods. This practice has the effect of labelling a package as being "not Pythonic" and also suggests that this package was originally used in another language and then ported to Python. This is exactly the situation with Qt. The reason for the name problem was one of ignorance.

You can, and will be able to for some time, use both names. However, at some point in the future, the CamelCase names will disappear. A utility is planned to do the conversion for the developer when the old names are remove from PySimpleGUI. The help system will work with both names as will your IDE's docstring viewing. However, the result found will show the CamelCase names.

For example help sg. This is what will be returned:. If there are none, then only the first letter is changed. For the time being, class variables will remain the way they are currently. It is unusual, in PySimpleGUI, for class variables to be modified or read by the user code so the impact of leaving them is rarely seen in your code. They are the most basic form of communications with the user. They are named after the type of window they create, a pop-up window. These windows are meant to be short lived while, either delivering information or collecting it, and then quickly disappearing.

Think of Popups as your first windows, sorta like your first bicycle. It worked well, but was limited. It probably wasn't long before you wanted more features and it seemed too limiting for your newly found sense of adventure. When you've reached the point with Popups that you are thinking of filing a GitHub "Enhancement Issue" to get the Popup call extended to include a new feature that you think would be helpful For the good of others. Well, don't file that enhancement request.

Congratulations, you just graduated and are now an official "GUI Designer". Oh, never mind that you only started learning Python 2 weeks ago, you're a real GUI Designer now so buck up and start acting like one.

Write a popup function of your own. And then, compact that function down to a single line of code. Yes, these popups can be written in 1 line of code. The secret is to use the close parameter on your call to window.

But, for now, let's stick with these 1-line window calls, the Popups. This is the list of popup calls available to you:. Think of the popup call as the GUI equivalent of a print statement. It's your way of displaying results to a user in the windowed world. Each call to Popup will create a new Popup window.

A non-blocking window of Popup discussed in the async section. Just like a print statement, you can pass any number of arguments you wish. They will all be turned into strings and displayed in the popup window. There are a number of Popup output calls, each with a slightly different look or functionality e. The trailing portion of the function name after Popup indicates what buttons are shown. PopupYesNo shows a pair of button with Yes and No on them. PopupCancel has a Cancel button, etc..

While these are "output" windows, they do collect input in the form of buttons. The Popup functions return the button that was clicked. If the Ok button was clicked, then Popup returns the string 'Ok'. Popup - Display a popup Window with as many parms as you wish to include. This is the GUI equivalent of the "print" statement. It's also great for "pausing" your program's flow until the user can read some error messages. If this popup doesn't have the features you want, then you can easily make your own.

Window 'Continue? T 'Do you want to continue? The other output Popups are variations on parameters. Rely on the Popup function named that sets that value for you. Show a scrolled Popup window containing the user's text that was supplied. Use with as many items to print as you want, just like a print statement. Specify None in the height field of a size parameter to get auto-sized height.

This call will create a scrolled box 80 characters wide and a height dependent upon the number of lines of text. Note that the default max number of lines before scrolling happens is set to At 50 lines the scrolling will begin. Execution will immediately return to the user. Handy when you want to dump out debug info without disrupting the program flow. This function is very handy for when you're debugging and want to display something as output but don't want to change the programs's overall timing by blocking.

Think of it like a print statement. There are no return values on one of these Popups. So that you don't have to specify a potentially long list common parameters there are a number of popup functions that set combinations of parameters. You could achieve this same end result using the plain popup call. There are Popup calls for single-item inputs.

There are 3 of these input Popups to choose from, each with settings enabling customization. Use these Popups instead of making a custom window to get one data value, call the Popup input function to get the item from the user. If you find the parameters are unable to create the kind of window you are looking for, then it's time for you to create your own window. Gets one or more filenames from the user. There are options to configure the type of dialog box to show.

Normally an "Open File" dialog box is shown. Display popup window with text entry field and browse button so that a file can be chosen by user. If you choose a filename that already exists, you'll get a warning popup box asking if it's OK. You can also specify a file that doesn't exist. With an "Open" dialog box you cannot choose a non-existing file. The window created to get a folder name looks the same as the get a file name.

The difference is in what the browse button does. The animated Popup enables you to easily display a "loading" style animation specified through a GIF file that is either stored in a file or a base64 variable. Show animation one frame at a time. This function has its own internal clocking meaning you can call it at any frequency and the rate the frames of video is shown remains constant.

Maybe your frames update every 30 ms but your event loop is running every 10 ms. You don't have to worry about delaying, just call it every time through the loop. This will close all of the currently open PopupAnimated windows. We all have loops in our code. How about one line of code to get a progress meter, that contains statistics about your code? A meter AND fun statistics to watch while your machine grinds away, all for the price of 1 line of code.

With a little trickery you can provide a way to break out of your loop using the Progress Meter window. It normally returns True. Be sure and add one to your loop counter so that your counter goes from 1 to the max value. If you do not add one, your counter will never hit the max value. Instead it will go from 0 to max You can use Print or eprint in addition to EasyPrint. They all do the same thing, output to a debug window.

If the debug window isn't open, then the first call will open it. No need to do anything but stick an 'sg. Print' call in your code. You can even replace your 'print' calls with calls to EasyPrint by simply sticking the statement. Print is one of the better ones to use as it's easy to remember. It is simply print with a capital P. Print 'this will go to the debug window'. There is an option to tell PySimpleGUI to reroute all of your stdout and stderr output to this window.

After calling it once with this parameter set to True, all future calls to a normal print will go to the debug window. If you close the debug window it will re-open the next time you Print to it.

Another technique for outputting information that you would normally print is to use the function Multiline. You'll find it discussed further into this document.

The basic idea is that you can easily modify your normal print calls to route your printed information to your window.

In order to really get the most out of the API, you should be using an IDE that supports auto complete or will show you the definition of the function. This will make customizing go smoother. This first section on custom windows is for your typical, blocking, non-persistent window. By this I mean, when you "show" the window, the function will not return until the user has clicked a button or closed the window with an X. Two other types of windows exist.

Persistent window - the Window. This is good for applications like a chat window or a timer or anything that stays active on the screen for a while. Asynchronous window - the trickiest of the lot. Great care must be exercised. Examples are an MP3 player or status dashboard. Async windows are updated refreshed on a periodic basis. You can spot them easily as they will have a timeout parameter on the call to read.

It's both not enjoyable nor helpful to immediately jump into tweaking each and every little thing available to you. Make some simple windows. Use the Cookbook and the Demo Programs as a way to learn and as a "starting point". Better yet, the window designer requires no training, no downloads, and everyone knows how to use it.

It's a manual process, but if you follow the instructions, it will take only a minute to do and the result will be a nice looking GUI. The steps you'll take are: 1. Sketch your GUI on paper 2. Divide your GUI up into rows 3. Label each Element with the Element name 4. Write your Python code using the labels as pseudo-code. Enter a number Popular beginner programs are often based on a game or logic puzzle that requires the user to enter something, like a number.

The "high-low" answer game comes to mind where you try to guess the number based on high or low tips. Step 1- Sketch the GUI. This tutorial only focuses on getting the window code written, not the stuff to display it, get results. We have only 1 element on the first row, some text. Rows are written as a "list of elements", so we'll need [ ] to make a list. Here's the code for row 1. Now that we've got the 3 rows defined, they are put into a list that represents the entire window.

Your call to read will normally return a dictionary, but will "look like a list" in how you access it. The first input field will be entry 0, the next one is 1, etc.. Later you'll learn about the key parameter which allows you to use your own values to identify elements instead of them being numbered for you. Let's say you've got a utility you've written that operates on some input file and you're ready to use a GUI to enter than filename rather than the command line.

Follow the same steps as the previous example - draw your window on paper, break it up into rows, label the elements. Writing the code for this one is just as straightforward. There is one tricky thing, that browse for a file button. As a result, the code looks almost exactly like the window on the paper. All of your PySimpleGUI programs will utilize one of these 2 design patterns depending on the type of window you're implementing.

Beginning in release 4. This will be the most common pattern you'll follow if you are not using an "event loop" not reading the window multiple times. The window is read and closed. The input fields in your window will be returned to you as a dictionary syntactically it looks just like a list lookup. Same as Pattern 1, but done in a highly compact way. This example uses the close parameter in window.

This enables you to write a single line of code that will create, display, gather input and close a window. It's really powerful stuff! Some of the more advanced programs operate with the window remaining visible on the screen. Input values are collected, but rather than closing the window, it is kept visible acting as a way to both output information to the user and gather input data.

This code will present a window and will print values until the user clicks the exit button or closes window using an X. This is a slightly more complex, but maybe more realistic version that reads input from the user and displays that input as text in the window.

Your program is likely to be doing both of those activities input and output so this will give you a big jump-start. Do not worry yet what all of these statements mean. Just copy it so you can begin to play with it, make some changes. Experiment to see how thing work. This example introduces the concept of "keys". Keys are super important in PySimpleGUI as they enable you to identify and work with Elements using names you want to use.

To access an input element's data that is read in the example below, you will use values['-IN-'] instead of values[0] like before. It's outside the scope of this document however.

While one goal was making it simple to create a GUI another just as important goal was to do it in a Pythonic manner. Whether it achieved these goals is debatable, but it was an attempt just the same. Each row is specified as a list of these Elements. Put the rows together and you've got a window. That call has been replaced by the more simple function theme.

The second row has 3 elements in it. First the text Source for Folders , then an input field, then a browse button. See how the source code mirrors the layout? You simply make lists for each row, then submit that table to PySimpleGUI to show and get values from.

And what about those return values? Most people simply want to show a window, get the input values and do something with them.

So why break up the code into button callbacks, etc. For return values the window is scanned from top to bottom, left to right.

Each field that's an input field will occupy a spot in the return values. In our example window, there are 2 fields, so the return values from this window will be a dictionary with 2 values in it. Remember, if you do not specify a key when creating an element, one will be created for you. They are ints starting with 0. In this example, we have 2 input elements. They will be addressable as values[0] and values[1]. In one statement we both show the window and read the user's inputs.

Isn't this what a Python programmer looking for a GUI wants? Something easy to work with to get the values and move on to the rest of the program, where the real action is taking place. Most would choose 4. There are 2 return values from a call to Window. If there are no elements with keys in the layout, then it will be a list. However, some elements, like some buttons, have a key automatically added to them.

It's best to use keys on all of your input type elements. You don't HAVE to write your reads in this way. You can name your variables however you want. But if you want to code them in a way that other programmers using PySimpleGUI are used to, then use this statement. The first parameter event describes why the read completed. There are a number of solutions out there, and you need to do definitive feature comparison so you can decide the best solution that is best for you.

I use Git both at work and for personal rjepocts. Its superior branch merging and local branching capability are great advantages over Subversion. Git is very powerful but as a result has lots and lots of commands, options and features that are confusing and unnecessary for everyday use. However I found that once you learn how to do the basics, you can get by perfectly fine.

There is absolutely no need to set up server or such a thing. Possibly "destructive" features or "destructive power" as you call it are not turned on by default so that no data is lost by default.

Start working. Mercurial exposes a clean public Python API, thus many features in Mercurial are moved out to optional extensions in order to keep the core set of commands clean. I use it on my Ubuntu However, some purists actually shy away from gui-fied SVN clients and use the terminal client instead since it offers much more scripting flexibility and what not.

Not necessary to talk about CVS, I think, it is a dinosaur. One of its big disadvantage — it does not allow to version folders directories. Good enough for small teams. Latest XCode 4. Very interesting to try git, to learn something new and because it better work with branches as people say.

Also it has good clients for all platforms. Also I like that it stores meta information only in root folder, unlike svn has. Also it is very good that git is faster — critical for big projects. Also need to mention following clients: TortoiseGit — open source client for Windows.

GitX SmartGit — commercial. Your email address will not be published. Rob Rawson. Get more stuff like this In your Inbox Subscribe to our mailing list and get interesting stuff on remote working and productivity to your email inbox. Vikas says:. March 11, at am. Shayne says:. September 9, at am. November 13, at am. Paul says:. April 25, at am. Wellerson says:.

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WinCvs for me does all I want and more, but then I'm probably considered a power user and a heavily biased one at that as I used to be a cvsgui mailing list moderator and FAQ author and also wrote many of the stock macros.

Then again, there hasn't really been any active development on WinCvs for quuuuiiiite some time I was also searching for this currently. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. What's the best CVS client for Windows? Asked 13 years, 1 month ago. Active 10 years, 9 months ago. Viewed 69k times. Improve this question. Scott Dorman 41k 11 11 gold badges 75 75 silver badges bronze badges.

Aaron Digulla Aaron Digulla k gold badges silver badges bronze badges. For questions like these, I think sometimes the best place to look is alternativeto. Add a comment. Active Oldest Votes.



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