STREAMLIT TRICKS - Web App RERUNS on every WIDGET CLICKS ? Here's WHAT-TO-DO |SessionState| PYTHON

[@Avra_b]

Blog Post and codes related to this video - medium.com/@avra42/streamlit-python-tips-how-to-avoid-your-app-from-rerunning-on-every-widget-click-cae99c5189eb

[@pr0skis]

This was much more clear than the Streamlit examples. Great video!

[@Avra_b]

Hey thanks for such kind words . I’m happy to hear 🤗

[@notmanas]

I spent more than 16 hours with issues related to this. If only I had found you sooner!

[@Avra_b]

That’s very kind of you :) I’m glad that you liked this video and it came useful. Stay in touch 🤗

[@PepBytes]

Thank you so much, Avra, I found your Medium article after spending a few hours working on this, and it has worked perfectly!

[@Avra_b]

This kind of comments are always very motivating for me to keep on creating more contents. I’m glad that it worked for you and also thanks for the affirmation that this old code is still 💪🏽 and working . Stay in touch 🤗

[@jorge1869]

Excellent, without a doubt, this channel is becoming the best niche to learn streamlit. You are doing a good job. Greetings

[@Avra_b]

Hey Jorge , Thank you so much for this comment . Please keep on showering this love and support . And make sure to leave your feedbacks and suggestions. It will help me improve further. Stay in touch 🤗

[@EvandroSegundo]

Finally a useful example!!! It solved my problem. Thank you!!

[@Avra_b]

Glad to hear !

[@MaximusGamingGG]

Thank you so much man !! Was really stuck with this and couldn't find a solution anywhere else. Great explanation !!

[@Avra_b]

Very happy to hear ! Stay in touch ☺️

[@MaximusGamingGG]

Surely 😊

[@rbk.technology4747]

Superb man.... Seriously was dying to solve this issue. I got to know. But after this 6 mins video its so crystal clear. First should have come to YT instead of Google and docs You made it simple and clean. Thanks a lot for all these videos. One day they will scale to 1 million views. As all of these are so valuable and lifesaver

[@Avra_b]

These are such kind words from you . Thank you and this motivates me further . Stay in touch 🤗🎈

[@subinnair3835]

Thaaanks a lot for uploading such amazing content on Streamlit sir !!

[@Avra_b]

Hey Subin ! This is so nice to hear , thanks 🤗

[@theanxiousdude7515]

Amazing! I searched for solution for hours. Thank god I came acorss your medium article and this video. Simple and easy way to deal with the session problem. Thank you so much dude

[@Avra_b]

Hey thanks for feedback. I’m glad that it helped you . Stay in touch ❤️

[@theanxiousdude7515]

@@Avra_b I wil, thanks bro

[@saxegothaea_conspicua]

Great video. Thank you very much. I was stuck figuring this out.

[@Avra_b]

Very happy to hear mate !

[@tanmaypathak3774]

Great video, how do you have two download buttons that have different outputs? The apps keeps rerunning after clicking one of the download button

[@learnapplybuild]

Bro I am surprised why only 190 likes on this video...... thanks a ton for this solution

[@Avra_b]

Hey so glad to hear that you enjoyed the video :) stay in touch 🤗🎈

[@learnapplybuild]

@@Avra_b sure bro 🙌🏻😎 Followed you on medium😇

[@Avra_b]

@@learnapplybuild Thank you, soon I'll put up with some new blog post out there, stay in touch, cheers :)

[@yonnialvarez9388]

this video was clreares than others , thanks sir, appreciate it,also i learned streamlit on your channel, thanks x2

[@Avra_b]

So happy to hear this from you ! Do stay in touch :)

[@HarhanDerMann]

Hey, I'm having some issues initializing the session_state. Even though I initialise it the same way as you did, or as a classic dictionary it doesn't seem to recognize it and I get an error. Do you have any idea what the issue is?

[@Avra_b]

Hey Thanks for your feedback. What's the error ? if you follow the exact lines, it shouldn't . Please check your Streamlit version. How about referring to the doc once , docs.streamlit.io/library/api-reference/session-state Do let me know, stay in touch :)

[@HarhanDerMann]

@@Avra_b Yeah I followed the same lines as you did. The error was: AttributeError: st.session_state has no attribute "load_state". Did you forget to initialize it? I should have the latest streamlit version since I downloaded it this week, but just in case how would I check the exact version? And which version would be necessary? Anyways thanks for your quick reply!

[@Avra_b]

@@HarhanDerMann So, yeah it's because of the initialisation. Please refer to 04:35 of the video. There I refer to the Initialization part . Apologies, I'll update Time-Stamp for quick scrolling. Otherwise, you can check the Blog Post as well - medium.com/@avra42/streamlit-python-tips-how-to-avoid-your-app-from-rerunning-on-every-widget-click-cae99c5189eb If the problem still persist let me know. Cheers.

[@HarhanDerMann]

@@Avra_b I copied your exact code but it still won't initialize. I have no clue what's going wrong

[@Avra_b]

@@HarhanDerMann Okay, let's try with Streamlit's documentation code. Does that work for you ? Can you please send me link to your GitHub repo otherwise.

[@joaoatos7938]

Awesome video!

[@Avra_b]

Thanks ! I’m glad that you liked it 🤗

[@maivish100]

How to make column header dynamic with colour coding, is it already inbuilt feature in ST.?

[@Avra_b]

Elaborate a bit more please

[@danielblechinger6608]

Thank you for your help! Wouldn´t complete the job without your help !

[@Avra_b]

So happy to hear Daniel ! Stay in touch 🤗

[@danielblechinger6608]

@@Avra_b Of course :) will look your videos now more often :)

[@bhanu.s]

I have a table and for that table i have added filters with buttons. When the button is clicked the whole app is rerunning. I have tried session.state also. Please help me on this

[@Avra_b]

Streamlit now has now api to run part of a function. Alternatively, you can wrap up the table within a cache function

[@chriskeo392]

How can u create a select all check box to select all check boxes?

[@Avra_b]

Hi , there can be number of ways to implement such functionality. ATM - what comes to my mind is like - the select all check box , has an on click function - which swaps the value of other check boxes ( the other check boxes got it’s value stored in session state ) . In short - look for the implementation of session state and on click function . Hope this helps .

[@hamzaahmad564]

Yoo, is there a way to programatically update the value of a widget? (for example update the value of a slider through the code)

[@Avra_b]

Apologies for my late reply . Yes it’s value , by assigning a value to the widgets , for instance incase of slider .

[@sal6436]

If we're want to run only part of code after clicking the widget , and that part of code uses the variables of other part of code that we don't want to rerun , then what should we do?

[@Avra_b]

If I understood you correctly, wrapping those part of code within a Cache functions would do the trick. st.cache() or st.experimental_memo(). You can refer to the last part of my Blog Post where I mentioned about this - medium.com/@avra42/streamlit-python-tips-how-to-avoid-your-app-from-rerunning-on-every-widget-click-cae99c5189eb I hope this solves, otherwise apologies but please mention an use-case, which will help me to understand your question better. Stay In touch and let me know :)

[@arturgomes1654]

Amazing video, it helped me so much! Thanks!

[@Avra_b]

Very happy to hear ☺️

[@parobe6167]

Hi! Amazing video, but for me it's not working. I've a multipage app and in one page I want to implement a neasted button. I have something like: if "Run PK Analysis" not in st.session_state: st.session_state["Run PK Analysis"] = False if st.button("Run PK Analysis", key="pk_button") or st.session_state['Run PK Analysis']: st.session_state['Run PK Analysis']=True with st.spinner("Building graphs..."): time.sleep(5) if 'df_result' in st.session_state: #code if st.button("PK interpretation", key="inter"): # Display PK interpretation content here st.write("PK interpretation content goes here." elif 'df_upload' in st.session_state: #code when I press second button ('pk interpretation') the page is refreshing... Could you help me?

[@Avra_b]

Hmm interesting. I’ve to give it a spin . Not sure atm

[@PiyushSingh-ef1sh]

dont know how this works but it works !!! thanks!

[@Avra_b]

That all matters ! Cheers

[@zbynekba]

Hi Avra, Thank you for sharing your knowledge with us. BTW, what application do you use for drawing your diagrams? It looks like hand-written, but I guess it is not.

[@Avra_b]

Hi thanks 🙏🏽 usually I use exclidraw or tldraw online tools .

[@otherside_ofqila]

Very informative video 😁 I am currently working on with streamlit, and I can't wait to implement these infos.. Thanks 😁 I also would like to see if you can make buttons that after you click, it can call other python scripts from other page into the current page.. Thank you in advance 😁

[@Avra_b]

Hey thank you for your feedback. I’m glad that you liked this video. Your suggestion seems interesting, can you please elaborate further with an use case may be ? Thanks . Let’s stay in touch and please always feel free to share your feedbacks :)

[@kirupaagar6674]

Bro you saved my 2 days of work

[@Avra_b]

❤️

[@beyblade600]

Thanks for an excellent tutorial, however I am still struggling with how to store pyplots in session_state. As whenever i update any widget, my rendered image reloads again, even when its the same image. I have tried storing pyplot instance in sessions but its still not working, any idea how do I avoid that?

[@Avra_b]

Was your issue resolved ?

[@SaravananB-d4n]

Very helpful video, thank you bro ❤️

[@Avra_b]

Very happy to hear ☺️

[@jyoti04411]

How is different than cache data features

[@Avra_b]

Which part ?

[@swastisunder]

i want when i clicked a button my page have to rerun from start

[@nikhil141088]

great video. Kudos to you!

[@Avra_b]

Hey thanks Nikhil for such kind word 🤗

[@dishydez]

As always great tutorial. Isbit possible to do the user authentication again but with session state included as well as st. Experimental params? Would be good to mesh these together. Thanks anyway!

[@Avra_b]

Hi that’s indeed a great suggestion ! I’m planning to review few more Streamlit Components which covers user authentication. I’ll update you once I finish that . Stay in touch :)

[@genesistorrico343]

Thank you very much, your video helped me a lot. Excellent explanation thanks!

[@Avra_b]

Thank you for your feedback! Very kind of you , this undoubtedly motivates me to create more content and share with you all . Cheers

[@t4n_shahin]

you are a life saver

[@Avra_b]

Your comment is my positivity boost on a Sunday Morning , cheers !

[@minnie3569]

thank you so muchhhhh i love youuu it was so useful

[@Avra_b]

🫶🏽

[@bhaskarturkar2863]

Great video , Thanks

[@Avra_b]

Happy to hear 🤗

[@whitename7764]

Great!!!

[@Avra_b]

☺️

[@AnkurSingh-kj9wu]

You are great! Thanks a lot! :-)

[@Avra_b]

Hey Ankur! You being too kind , thanks anyways 🤗

[@AnkurSingh-kj9wu]

@@Avra_b Just because of you, The error I was trying since yesterday got solved in less than a minute. 😄

[@Avra_b]

Happy to hear 🤗💛

[@アルズぺイマサマン]

brilliant!

[@Avra_b]

Thank you 🤗

[@kugann3421]

Thank you

[@Avra_b]

Hey you are welcome 🤗

[@123xxxify]

Nice sir, from Doge Vietnam

[@Avra_b]

Glad to see you here . Stay in touch 🤗

[@thghtfl]

that actually does NOT stop streamlit from rerunning the app, you just don’t see that is happening due to small amount of initializing data

[@Avra_b]

Hi @Igor , thanks for your feedback. I would like to understand more clearly this issue , can you please provide me with your use case ? As far as it goes, the video mainly indicates the workaround with the widgets active state. Data loading at every run can be ignored as well, for that wrapping within a function is necessary ( mentioned in the blog post )

[@Kinematician30]

HEY! Avra can I get your Linkedin profile?

[@Avra_b]

You can find me here - www.linkedin.com/in/avratanu-biswas-708616b7

[@kunalr_ai]

Watching today in 17 jun 2024 😂😂

[@Avra_b]

Wdyt?

[@kunalr_ai]

@@Avra_b what is the question?

[@scankomp241]

Что здесь происходит )

[@photon2724]

Streamlit should be burned for this! like how is this ever a good feature?!

[@Avra_b]

It’s a trade I would say . We get the ease of development and prototyping quickly , trading with such inefficient state of widgets. There are frameworks nice niceGUI / Reflex / Solara - better in dealing with it

[@isaquedavid4064]

[@Avra_b]

Thank you David ! Stay in touch 🤗