@dps158

Dear Nitish Ji,

First of all, thank you so much for your wonderful video! I truly appreciate the way you explained the fundamentals of LangChain—it was very insightful.

I just had a small observation regarding the NakliPromptTemplate class. It seems that the input_variables list is not being used in the original implementation. So, I made a small modification to the format function to ensure that it checks whether all required input variables are provided. This way, if any variable is missing or any extra variables,  Now the function can handle it gracefully.

Thank you again for your valuable content! Looking forward to learning more from you. 

class NakliPromptTemplate:
    def __init__(self, template, input_variables):
        self.template = template
        self.input_variables = input_variables  

    def format(self, input_dict):
        # Check for missing variables
        for var in self.input_variables:
            if var not in input_dict:
                raise ValueError(f"Missing required variable: {var}")

        # Check for extra variables
        for key in input_dict.keys():
            if key not in self.input_variables:
                raise ValueError(f"Unexpected variable: {key}")

        return self.template.format(**input_dict)

@kushagrabisht9596

This comment is to thank you and motivate you for 4 videos a week sir. Please take it as as challenge for few months. It will help all your students in decluttering the noise and navigating much easily. Please try it once.

@suhasghatti5315

Absolutely mind-blowing explanation! 
I’ve watched so many videos on LangChain, but none come close to the clarity and depth you delivered here.
The way you explained Runnables — it’s like everything just clicked in one go.

This isn’t just a tutorial, it’s a game-changer for anyone learning Generative AI.
CampusX, thank you for making such high-quality content accessible and so easy to understand. 

Massive respect for your teaching style!🙏🙏🙏 Deserves way more views

@av_yukt

Prompt : 01:25 Ek baar video ko pura dekho and give me some feedback, As i am bit confued about the Video

Response (feedback) : EK hi dil hain sir kitni baar jeetoge!❤❤❤. Bohot pyaara Video hain, hamesha ki tarah!  thank you so much!

@sulemanahmed2896

Thank you Sir G,

Video bohat top class bana hai, I love your innocence where you said "pata nahi video kaisa bana hai."

You are the best teacher. <3

@AkshayBhure-p3v

Hi Nitish, 
you are doing amazing work. I really appreciate your work. since last 3 years I am following you and mostly 50% of your channel videos I have seen. each of that is awesome. Before this I never comments on your videos but today first time I am commenting.

Jitani taarif kare otani kam hai 👏👏 Thank you for such good content provide to us. 

I hope God always blessed  you...........................

@Vishnu-q8w6u

daily checking for your video..

@toqeer19

Your way to explain a concept is top-notch. Why, what, and how.

Fantastic way of teaching.

The way that you first explain what the problem is and then how to resolve it.

@ameygujre7674

No one in the industry is explaining this as you are !!! 
This is pure gem 💎

@Obhisphere

I truly appreciate the way all these sessions highly emphasize on storytelling — there’s a clear purpose and a thoughtful sequence that guides us through every concept just when we need to know it. There might be other courses out there, but none as well-curated and impactful as what we experience here with CampusX.

Thank you, Nitish, for yet another brilliant session. Your efforts truly make learning enjoyable and purposeful.

@shubhamgattani5357

At first, I was lazy to try out the "Nakli" class codes...but I did them in second watch...and the concept explanation is truly mind-blowing. Good that I also learned about abstract class in python.

@saadmalik7537

I was curious why this video took a while to come out, as Runnables didn’t seem too technical at first. But now I see, it wasn’t just about Runnables, but the whole evolution of LangChain. You beautifully explained how they refined their library over time, fixing foundational issues. Understanding this history makes learning LangChain so much clearer. Thanks for the great insights.

@technicalhouse9820

sir you are my favorite teacher i have been learning from you on youtube for the past 2 to 3 years and your teaching style is truly amazing you are the only reason i visit youtube and i always look forward to your lessons thank you for sharing your knowledge with us ❤❤❤❤

@vinodthebest

Great explanation! This really clarifies why the Runnable concept is needed and why LangChain updated it in later versions. Super helpful breakdown!

@RohitKumar-jr1te

Wonderfully explained and connected everything to basics. Now I am able to really appreciate the power of OOPs.
Keep making such videos. 
Thank you so much, Nitish sir.

@UmerFarooq-zv1ky

Prompt : 01:25 Ek baar video ko pura dekho and give me some feedback, As i am bit confued about the Video

Response (feedback) : EK hi dil hain sir kitni baar jeetoge!❤❤❤. Bohot pyaara Video hain, hamesha ki tarah!  thank you so much!
Love from Pakistan😍

@MohiniGiri_07

You are the best!  You made such a deep-knowledge video and I am fortunate that I can learn from you...... In paid classes, people won't give this many deep insights about the topic but in every video you gave such an outstanding explanation, that you deserve the best teacher award literally! THANK YOU SO MUCH  I hope this kind of content should reach as much as people possible so that people like me who want to understand things with clarity can get a good guide

@DeepaakashGupta

I really appreciate all your efforts. I truly appreciate the way you explained the fundamentals of LangChain.

@grooveflirtcheer

The way you approach each and every topic from the first principles, I dont think there is a single other person in entire youtube who does it. It has reached a stage where sometimes I start feeling , if I learn all these concepts from any other source, I will never appreciate the true essence of it, hence just keep waiting for your videos!!!

@coderaditya5378

The way you are teaching is outstanding 🙏 Thank you