Assistant: 
User: System: 
You are a highly intelligent AI assistant that specializes in generating UI components for Flet in Python based on simple user prompts. Your task is to understand the user's intent, generate accurate Flet UI components, and provide explanations if necessary. Here's how you should proceed:

Understand the User's Intent:
Carefully read the user's prompt to identify the type of UI component they need (e.g., buttons, sliders, containers, or custom layouts). Always clarify if the user’s request seems vague.
Flet Context:
Use the Flet framework to generate Python code for the UI components.
Ensure that the components are functional and compatible with the latest version of Flet.
If any specific libraries, tools, or design conventions are required, incorporate them into the generated code.
Web Context and References:
If the user's prompt refers to a library, functionality, or trend that you're unfamiliar with, retrieve relevant context from the web.
Use context-aware design principles, ensuring the components align with UI/UX best practices.
In cases of specific design requests, verify if additional libraries (like CSS styling or advanced widgets) are needed.
Code Generation:
Generate Python code that accurately represents the UI component requested.
Ensure the code is well-structured, with appropriate imports and correct function/method use.
If multiple components are requested, ensure they are compatible and can function together within the same Flet application.
Provide comments in the code to explain key sections and how they relate to the user's prompt.
Handle Errors and Edge Cases:
If the user’s request has potential edge cases (e.g., missing parameters, invalid syntax), offer solutions or suggestions for improvement.
Gracefully handle scenarios where input is incomplete, offering guidance on how to refine it. Don't write anything else than the code. Only write the python code. No other languages.

User: User prompt: create a flet UI component for tweet like component with username, tweet text, buttons for like, comment and share under it in python 
Web context: Creating realtime chat app in Python with Flutter UI - DEV CommunitySkip to contentNavigation menuSearchPowered bySearchAlgoliaSearchLog inCreate accountDEV CommunityCloseAdd reactionLikeUnicornExploding HeadRaised HandsFireJump to CommentsSaveMore...Copy linkCopy linkCopied to ClipboardShare to TwitterShare to LinkedInShare to RedditShare to Hacker NewsShare to FacebookShare to MastodonReport AbuseFletPosted onFeb 7, 2023Creating realtime chat app in Python with Flutter UI#webdev#python#pubsub#tutorialIn this tutorial we are going to create a trivial in-memory Chat app with Flutter UI in Python usingFlet framework. This app could be a good starting point to creating your own more complex and useful projects.In this tutorial you will learn how to:Create your first Flet appAdd page controls and handle eventsBroadcast messages using built-in PubSub libraryUse AlertDialog control for accepting user nameEnhance user interface with re-usable controlsDeploy the app as a web appThe complete application will look like this:You can play with a live demohere.The full code for the chat app can be foundhere.Getting started with FletTo create a Flet web app you don't need to know HTML, CSS or JavaScript, but you do need a basic knowledge of Python and object-oriented programming.Flet requires Python 3.7 or above. To create a Flet app in Python, you need to installfletmodule first:pipinstallfletEnter fullscreen modeExit fullscreen modeNote: upgrading FletTo upgradefletmodule, run:pipinstallflet--upgradeCreatehello.pywith the following contents:importfletasftdefmain(page:ft.Page):page.add(ft.Text(value="Hello, world!"))ft.app(target=main)Enter fullscreen modeExit fullscreen modeRun this app and you will see a new window with a greeting:Adding page controls and handling eventsTo start, we want to be able to take user input (chat message) and show messages history on the screen. The layout for this step could look like this:To implement this layout we will be using these Flet controls:Column- a container to display chat messages (Textcontrols) vertically.Text- chat message displayed in the chatColumn.TextField- input control used for taking new message input from the user.ElevatedButton- "Send" button that will add new message to the chatColumn.Row- a container to displayTextFieldandElevatedButtonhorizontally.Createchat.pywith the following contents:importfletasftdefmain(page:ft.Page):chat=ft.Column()new_message=ft.TextField()defsend_click(e):chat.controls.append(ft.Text(new_message.value))new_message.value=""page.update()page.add(chat,ft.Row(controls=[new_message,ft.ElevatedButton("Send",on_click=send_click)]))ft.app("chat",target=main,view=ft.WEB_BROWSER)Enter fullscreen modeExit fullscreen modeWhen user clicks on the "Send" button, it triggerson_clickevent which callssend_clickmethod.send_clickthen adds newTextcontrol to the list of Columncontrolsand clearsnew_messageTextField value.ImportantAfter any properties of a control are updated, anupdate()method of the control (or its parent control) should be called for the update to take effect.Chat app now looks like this:Broadcasting chat messagesIn the previous step we have created a simple web app that takes input from the user and displays chats messages on the screen. If you open this app in two web browser tabs, it will create two app sessions. Each session will have its own list of messages.To build a realtime chat app, you need to somehow pass the messages between chat app sessions. When a user sends a message, it should be broadcasted to all other app sessions and displayed on their pages.Flet provides a simple built-inPubSubmechanism for asynchronous communication between page sessions.First, we need subscribe the user to receive broadcast messages:page.pubsub.subscribe(on_message)Enter fullscreen modeExit fullscreen modepubsub.subsribe()method will add current app session to the list of subscribers. It acceptshandleras an argument, that will later be called at the moment a publisher callspubsub.send_all()method.In thehandlerwe will be adding new message (Text) to the list of chatcontrols:defon_message(message:Message):chat.controls.append(ft.Text(f"{message.user}:{message.text}"))page.update()Enter fullscreen modeExit fullscreen modeFinally, you need to callpubsub.send_all()method when the user clicks on "Send" button:defsend_click(e):page.pubsub.send_all(Message(user=page.session_id,text=new_message.value))new_message.value=""page.update()page.add(chat,ft.Row([new_message,ft.ElevatedButton("Send",on_click=send_click)]))Enter fullscreen modeExit fullscreen modepubsub.send_all()will call theon_message()and pass on the Message object down to it.Here is the full code for this step:importfletasftclassMessage():def__init__(self,user:str,text:str):self.user=userself.text=textdefmain(page:ft.Page):chat=ft.Column()new_message=ft.TextField()defon_message(message:Message):chat.controls.append(ft.Text(f"{message.user}:{message.text}"))page.update()page.pubsub.subscribe(on_message)defsend_click(e):page.pubsub.send_all(Message(user=page.session_id,text=new_message.value))new_message.value=""page.update()page.add(chat,ft.Row([new_message,ft.ElevatedButton("Send",on_click=send_click)]))ft.app(target=main,view=ft.WEB_BROWSER)Enter fullscreen modeExit fullscreen modeUser name dialogChat app that you have created in the previous step has basic functionality needed to exchange messages between user sessions. It is not very user-friendly though, since it showssession_idthat sent a message, which doesn't tell much about who you are communicating with.Let's improve our app to show user name instead ofsession_idfor each message. To capture user name, we will be usingAlertDialogcontrol. Let's add it to the page:user_name=ft.TextField(label="Enter your name")page.dialog=ft.AlertDialog(open=True,modal=True,title=ft.Text("Welcome!"),content=ft.Column([user_name],tight=True),actions=[ft.ElevatedButton(text="Join chat",on_click=join_click)],actions_alignment="end",)Enter fullscreen modeExit fullscreen modeNoteA dialog will be opened on the start of the program since we have set itsopenproperty toTrue.When the user clicks on "Join chat" button, it will calljoin_clickmethod that should send a message to all subscribers, informing them that the user has joined the chat. This message should look different from the regular chat message, for example, like this:Let's addmessage_typeproperty to theMessageclass to differentiate between login and chat messages:classMessage():def__init__(self,user:str,text:str,message_type:str):self.user=userself.text=textself.message_type=message_typeEnter fullscreen modeExit fullscreen modeWe will be checkingmessage_typeinon_messagemethod:defon_message(message:Message):ifmessage.message_type=="chat_message":chat.controls.append(ft.Text(f"{message.user}:{message.text}"))elifmessage.message_type=="login_message":chat.controls.append(ft.Text(message.text,italic=True,color=ft.colors.BLACK45,size=12))page.update()Enter fullscreen modeExit fullscreen modeMessages of "login_message" and "chat_message" types will now be sent on two events: when user joins the chat and when user sends a message.Let's createjoin_clickmethod:defjoin_click(e):ifnotuser_name.value:user_name.error_text="Name cannot be blank!"user_name.update()else:page.session.set("user_name",user_name.value)page.dialog.open=Falsepage.pubsub.send_all(Message(user=user_name.value,text=f"{user_name.value}has joined the chat.",message_type="login_message"))page.update()Enter fullscreen modeExit fullscreen modeWe usedpage session storageto store user_name for its future use insend_clickmethod to send chat messages.NoteUser name dialog will close as soon as we set itsopenproperty toFalseand callupdate()method.Finally, let's updatesend_clickmethod to useuser_namethat we previously saved usingpage.session:defsend_click(e):page.pubsub.send_all(Message(user=page.session.get('user_name'),text=new_message.value,message_type="chat_message"))new_message.value=""page.update()Enter fullscreen modeExit fullscreen modeThe full code for this step can be foundhere.Enhancing user interfaceChat app that you have created in the previous step already serves its purpose of exchanging messages between users with basic login functionality.Before moving on todeploying your app, we suggest adding some extra features to it that will improve user experience and make the app look more professional.Re-usable user controlsYou may want to show messages in a different format, like this:Chat message will now be aRowcontainingCircleAvatarwith username initials andColumnthat contains twoTextcontrols: user name and message text.We will need to show quite a few chat messages in the chat app, so it makes sense to create your own reusable control. Lets create a newChatMessageclass that will inherit fromRow.When creating an instance ofChatMessageclass, we will pass aMessageobject as an argument and thenChatMessagewill display itself based onmessage.user_nameandmessage.text:classChatMessage(ft.Row):def__init__(self,message:Message):super().__init__()self.vertical_alignment="start"self.controls=[ft.CircleAvatar(content=ft.Text(self.get_initials(message.user_name)),color=ft.colors.WHITE,bgcolor=self.get_avatar_color(message.user_name),),ft.Column([ft.Text(message.user_name,weight="bold"),ft.Text(message.text,selectable=True),],tight=True,spacing=5,),]defget_initials(self,user_name:str):returnuser_name[:1].capitalize()defget_avatar_color(self,user_name:str):colors_lookup=[ft.colors.AMBER,ft.colors.BLUE,ft.colors.BROWN,ft.colors.CYAN,ft.colors.GREEN,ft.colors.INDIGO,ft.colors.LIME,ft.colors.ORANGE,ft.colors.PINK,ft.colors.PURPLE,ft.colors.RED,ft.colors.TEAL,ft.colors.YELLOW,]returncolors_lookup[hash(user_name)%len(colors_lookup)]Enter fullscreen modeExit fullscreen modeChatMessagecontrol extracts initials and algorithmically derives avatar color from a username.Later, if you decide to improve control layout or its logic, it won't affect the rest of the program - that's the power of encapsulation!Laying out controlsNow you can use your brand newChatMessageto build a better layout for the chat app:Instances ofChatMessagewill be created instead of plainTextchat messages inon_messagemethod:defon_message(message:Message):ifmessage.message_type=="chat_message":m=ChatMessage(message)elifmessage.message_type=="login_message":m=ft.Text(message.text,italic=True,color=ft.colors.BLACK45,size=12)chat.controls.append(m)page.update()Enter fullscreen modeExit fullscreen modeOther improvements suggested with the new layout are:ListViewinstead ofColumnfor displaying messages, to be able to scroll through the messages laterContainerfor displayng border aroundListViewIconButtoninstead ofElevatedButtonto send messagesUse ofexpandproperty for controls to fill available spaceHere is how you can implement this layout:# Chat messageschat=ft.ListView(expand=True,spacing=10,auto_scroll=True,)# A new message entry formnew_message=ft.TextField(hint_text="Write a message...",autofocus=True,shift_enter=True,min_lines=1,max_lines=5,filled=True,expand=True,on_submit=send_message_click,)# Add everything to the pagepage.add(ft.Container(content=chat,border=ft.border.all(1,ft.colors.OUTLINE),border_radius=5,padding=10,expand=True,),ft.Row([new_message,ft.IconButton(icon=ft.icons.SEND_ROUNDED,tooltip="Send message",on_click=send_message_click,),]),)Enter fullscreen modeExit fullscreen modeThe full code for this step can be foundhere.This is the final version of the chat app for the purpose of this tutorial. Below you can read more about the enhancements that we have made.Keyboard supportFocusing input controlsAll data entry controls haveautofocusproperty which when set toTruemoves initial focus to the control. If there is more than one control on a page withautofocusset, then the first one added to the page will get focus.We setautofocus=Trueon a username TextField inside a dialog and then on a TextField for entering chat message to set initial focus on it when the dialog is closed.When a user click "Send" button or presses Enter to submit a chat message, TextField loses focus.To programmatically set control focus we usedTextField.focus()method.Submitting forms onEnterIt's so tempting to submit forms with just pushingEnterbutton on the keyboard! Type your name in the dialog, hitEnter, type a new message, hitEnter, type another, hitEnter- no mouse involved at all! 🚀Flet has support for that by providingTextField.on_submitevent handler which fires when a user pressEnterbutton while the focus is on the TextField.Entering multiline messagesWhat about multiline TextFields whereEntermust advance a cursor to the next line? We've got that covered too!TextFieldcontrol hasshift_enterproperty which when set toTrueenables Discord-like behaviour: to get to a new line user pressesShift+Enterwhile hitting justEntersubmits a form.Animated scrolling to the last messageNoticed a nice animation of scrolling to the last message in a chat window? It could be enabled by settingListView.auto_scrollproperty toTrue. The top mostPageclass, being a scrollable container itself, also supportsauto_scroll.Page titleFinal touch - page title that could be changed as simply as:page.title="Flet Chat"page.update()Enter fullscreen modeExit fullscreen modeDeploying the appCongratulations! You have created your Chat app in Python with Flet, and it looks awesome!Now it's time to share your app with the world!Follow these instructionsto deploy your Flet app as a web app to Fly.io or Replit.What's nextThere are plenty of features we could implement to improve this chat app:Disconnect, reconnect, session timeoutUpload/download imagesAuthentication, avatarsUsing database for the storageChat channels, topicsFull-text searchEmojis, markdownBotsMobile appPlease let us know if you would like to contribute to the app/tutorial and share it with other Flet developers.SummaryIn this tutorial, you have learnt how to:Create a simple Flet app;Add page controls and handle events;Use built in PubSub library;User AlertDialog for entering user name;Build page layout with reusable controls;Deploy your Flet app to the web;For further reading you can explorecontrolsandexamples repository.We would love to hear your feedback! Please drop us anemail, join the discussion onDiscord, follow onTwitter.Top comments(0)SubscribePersonalTrusted UserCreate templateTemplates let you quickly answer FAQs or store snippets for re-use.SubmitPreviewDismissCode of Conduct•Report abuseAre you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment'spermalink.Hide child comments as wellConfirmFor further actions, you may consider blocking this person and/orreporting abuseRead nextThought-Provoking Questions Every Backend Developer Should AskSospeter Mong'are -Oct 3Node.js UpdateChristopher Chhim  -Oct 3A Comprehensive Guide to Using the WordPress API: Authentication and Post SchedulingBhavesh Ramburn -Oct 7Send Information by Submitting Formelanatframework -Oct 2FletFollowFlet enables developers to easily build realtime web, mobile and desktop apps in Python. 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User: create a flet UI component for tweet like component with username, tweet text, buttons for like, comment and share under it in python 
Assistant:
Assistant: