First, as it is said that there is no one tool to fit all the use-cases. So, it should never hurt to know more than one tool/programming language; Albeit master both/all, if possible.
Next, it comes to if it is possible to do the full-stack in one language - the javascript has made it to the day with that goal achieved. And using web-assembly python and other languages are trying to achieve that too. But, in case if you envision to work in web-world, I suggest you to learn javascript and master it.
But again questions like - what is the budget and dev-market looks like, what kind of app(s) could be built, how to achieve performance as users, code, coders, team(s) and business(s) scale, how to achieve a certain feature in the system, what it takes to adapt to the changing consumer/business needs, etc. provides a more holistic view to the software development. And this also makes a programming language just another tool which is being used to meet specific process-constraints.
Probably, one of the best approaches for beginners in software development would be to master one or more languages while making things, contributing to production code-base and start to move level-upwards, i.e. towards Software Engineering in general.
In process, picking up tools with various use-cases attended, well or not-well achieved, to sort specific problem-constraints and keeping an eye on various performance issues. Adding more to the belt - understandings about delivery, quality and maintenance of softwares.
For next query of django vs some-js framework - Django is a mature framework with "all batteries included" as they say;
It allows to develop a web-application such that the back-end is written in python. And optionally, front-end using the templating system included with django or just writing REST based apis with it.
Including db-layer - django provides ORM layer with nice abstraction having model, view and controller. All this could be touched without leaving python code. And on the top - active open-source development of the framework adds good community support too.
So, while the django can do full-stack development, it also allows for decoupling frontend and do that using SPA built with react-js or VueJS or server-rendered express powered app.
Your current application might not need so much to start with - but you may include the django for learning or maturity/opinions/stability that comes with it or simply for the love of python.
One specific place that might need you to decouple frontend from django-system would be developing SPAs - although, I believe that it could be implemented with django too, if not already done by some-one in the python community, because at the end of the day SPAs are also combination of JS, CSS and HTML.
But the libraries like react-js or frameworks like VueJS might add different advantages such as with react - it provides for client-end performance out-of-box using virtual-dom (not that you are left to not bother about performance any-more, but it offers a good baseline with react-layer responsible for writing DOM, but coder providing what to draw and when).
Conclusively, it won't hurt if you learn Js, Python, django and react and could feel over-whelming and confusing. But, keep learning and making something out of it. I think you'll be fine. Take a deep breath and leap of faith with some amount of risk. I'm trying to do the same.
First, as it is said that there is no one tool to fit all the use-cases. So, it should never hurt to know more than one tool/programming language; Albeit master both/all, if possible.
Next, it comes to if it is possible to do the full-stack in one language - the javascript has made it to the day with that goal achieved. And using web-assembly python and other languages are trying to achieve that too. But, in case if you envision to work in web-world, I suggest you to learn javascript and master it.
But again questions like - what is the budget and dev-market looks like, what kind of app(s) could be built, how to achieve performance as users, code, coders, team(s) and business(s) scale, how to achieve a certain feature in the system, what it takes to adapt to the changing consumer/business needs, etc. provides a more holistic view to the software development. And this also makes a programming language just another tool which is being used to meet specific process-constraints.
Probably, one of the best approaches for beginners in software development would be to master one or more languages while making things, contributing to production code-base and start to move level-upwards, i.e. towards Software Engineering in general.
In process, picking up tools with various use-cases attended, well or not-well achieved, to sort specific problem-constraints and keeping an eye on various performance issues. Adding more to the belt - understandings about delivery, quality and maintenance of softwares.
For next query of django vs some-js framework - Django is a mature framework with "all batteries included" as they say;
It allows to develop a web-application such that the back-end is written in python. And optionally, front-end using the templating system included with django or just writing REST based apis with it.
Including db-layer - django provides ORM layer with nice abstraction having model, view and controller. All this could be touched without leaving python code. And on the top - active open-source development of the framework adds good community support too.
So, while the django can do full-stack development, it also allows for decoupling frontend and do that using SPA built with react-js or VueJS or server-rendered express powered app.
Your current application might not need so much to start with - but you may include the django for learning or maturity/opinions/stability that comes with it or simply for the love of python.
One specific place that might need you to decouple frontend from django-system would be developing SPAs - although, I believe that it could be implemented with django too, if not already done by some-one in the python community, because at the end of the day SPAs are also combination of JS, CSS and HTML.
But the libraries like react-js or frameworks like VueJS might add different advantages such as with react - it provides for client-end performance out-of-box using virtual-dom (not that you are left to not bother about performance any-more, but it offers a good baseline with react-layer responsible for writing DOM, but coder providing what to draw and when).
Conclusively, it won't hurt if you learn Js, Python, django and react and could feel over-whelming and confusing. But, keep learning and making something out of it. I think you'll be fine. Take a deep breath and leap of faith with some amount of risk. I'm trying to do the same.
All the best.
Loved the way you said this and it's so formative. And I decided to take a breath and gonna leap forward with faith. Thank u so much🌟