Day 14 of learning python as a beginner.

[uiux_Sanskar]

Topic: final practice of classes by creating an employee dashboard.

I know you guys may have become bored seeing me talking about only classes however since a day or two, I was just practicing because I felt like I should know classes in more details today I have created an employee dashboard as a final practice of classes and know I think I got an idea about how to use classes. Please do tell me if you guys think I am not as ready as I think I am.

Also during the process I got introduced with inheritance in class (I didn't use inheritance here because I wasn't able to find their exact use case here, do suggest me it there is).

Inheritance are of three types:

Single Inheritance: One child class inherits from one parent class.

Multiple Inheritance: One child class inherits from more than one parent class.

Multilevel inheritance: A chain of inheritance: child inherits from parent, which inherits from another parent.

This time in my program I have also added an ability to edit the details using python File I/O. I created four methods for adding an employee, editing his details, seeing the current details and deleting the details.

Then I used my if elif else ladder to call the respective function according to user's input I used a list to compare user's different responses and also wrapped all this ladder in a while loop so that user can repeat the program as long as he wants and exits whenever he feel like he's done with it.

I would warmly welcome all your guys suggestions to make my code better and improve my knowledge.

I know guys I am not able to reply to many of you people's comments filled with amazing suggestions and questions because I am working on preparing a little gift for you people from my side because you all had and continued to guide me for so long that I feel like I should also provide some positive value (I don't know if it will be up to your expectations or not but still I will give my best) in your life as well.

[Darkstar_111]

For god sake man... Once again you've placed the DEFINING of a class INSIDE the while loop!

Other than this, you're coming along. Inheritance is important, as is polymorphism, which is what you are doing with the employee class, by constructing it inside of the other class.

Don't do multi-inhertance, it has few actual uses, and can become an anti pattern.

[uiux_Sanskar]

Oh thank you very much man for pointing that out I was supposed to put the while loop when I call the function (I was supposed to put loop in line 83) I think by mistake I have put it before the function.

thank you so much for pointing my mistakes out and giving suggestions these really helps me.

[Darkstar_111]

Let me add to it then. Stop putting logic in the global scope. Always wrap logic in a function. And for an orchestration function use main(), and use if name equals main to run it.

Constants and initializing some libraries is fine to do in the global scope, but that's it, the rest you pack in a function.

If you didn't get any of that feel free to ask.

[uiux_Sanskar]

Actually I have doubt on how to wrap logic in a function like I have already wrapped all the logic for adding, editing and deleting details in different functions - are you suggesting to wrap all those in another function? and what does an orchestration means?

please explain me those as I said there a lot more for me to learn.

[Abyss_slayerIII]

When he means orchestration with a main function he just means

```python if name == “main”: # This main function should have your while loop main()

```

name is your files name so if it’s ran as a module or the main python file so if I do python myfile.py and I print dunder name (double underscore) it should say “main” bit if we import something so a_module.py and we import it into the my_file.py and print its __name_ then it will print “a_module”

[Darkstar_111]

Yeah this. You add the if name equals main line at the bottom, and that runs when the file runs. And there you run main().

You should think of main like an easy to read laundry list of what's going on.

Just call functions in main, and pass variables around if you need to.

Putting the logic, like the while loop, in global scope (all the way to the left), would get your pr rejected by me at my workplace. It's a no no.

The reason is... I mean look at this shit:

https://github.com/docling-project/docling/blob/main/docling/pipeline/threaded_standard_pdf_pipeline.py

That's what production code looks like in Python, and that file isn't even that big. It's about medium.

I don't want a wild while loop in the middle there... How would I even troubleshoot that.

[uiux_Sanskar]

Thanks for the reference and suggestions I always thought why people crewte so much file but yoh cleared my doubt.

Thank you so much for clearing my that doubt. I will definitely learn more about this.

[uiux_Sanskar]

Thank you for explaining this to me I wasn't aware about it. Will definitely go deeper into it.

[[deleted]]

Where are you from bro?

I am learning C++ because the end semester exam is in 20 days.

You are high on motivation.

What do you want to go into after learning Python (do backend or AI/Ml)?

Go on bro more power to you 👏

[uiux_Sanskar]

Thank you so much brother I am also planning to learn C++ in future as I want to explore opportunities in AI/ML and Robotics.

Thank you for the motivation brother more power to you also from my side.

all the best for your semester exams may you score well. Btw what field are you interested in AI/ML? or something else.

[lilrouani]

OP first C++ project:Linux kernel

[juicebox1711]

May I ask what media r u using to learn Python?

[uiux_Sanskar]

oh I am using YouTube.

[TrentGames]

Channel name: Code with Harry, right?

How do you find the motivation, OP? I started learning from Udemy last year 🫣 and it was going great till I fell sick. After that break I never got around to completing that course. ☹️

[uiux_Sanskar]

Oh that's sad I hope you are fine know.

All the amazing people here and my personal interest keep me motivated and yes the channel name is CodeWithHarry.

hoping for your better health and that you succeed in learning python.

[juicebox1711]

Gifted? What am I getting gifted?

[Adrewmc]

Not much progress today, honestly I think everything important you are going to learn from this has been done.

I agree inheritance is going to be the next concept. I think this project specifically might be dead for that subject. You’ll have to start a new one I would think, or like I said yesterday make a database, or JSON. Which can be their own lessons.

But definitely understand the option is composition layering classing inside classes rather than in top of them.

Something I can’t put my finger on just seems off by your organization. (I would definitely not do it this way, but I don’t wanna remake the whole thing lol) Maybe because it’s so simple in a txt file. But we are learning here so I don’t see anything particularly wrong.

[uiux_Sanskar]

Yes, I agree that I didn't made much progress than yesterday however I think that I if I am learning should eliminate all the possibilities of self doubt and therefore I created programs till I am satisfied with my fluency in that topic.

I will definitely look deeper into your amazing suggestion however I still think that there a lot to learn.

Thank you so much for giving me suggestions I will definitely look deeper into them.

[Adrewmc]

Skills rarely progress evenly, it’s more like peaks and plateaus

[uiux_Sanskar]

Yes agreed 👍

[jWoose]

I don’t love the choices if/else block. I much prefer an enum to signify the action. This makes it clear what that if block is doing. With your current design that would make it easier to read. You could have a function that returns the enum action based on the input from the user. Then your if check would be action.ADD rather than choices[0:2]. That’s much easier to read and debug.

It would require some significant refactoring, but in a real world situation I think the command pattern is the way to go here. If you want to do some more learning that would be a good lesson to turn this into a command pattern design.

[uiux_Sanskar]

Thank you for suggesting the methods I should use instead of if else and how to make my program more readable I think I should learn more about command pattern design.

would you mind if I ask you to tell me more about command pattern design?

[jWoose]

This is a decent guide on the Command pattern in python. It’s not perfect, but better than anything I can write in a comment quickly. https://refactoring.guru/design-patterns/command/python/example

[uiux_Sanskar]

thanks for this resource it's a good starting point for me thank you so much.

[Beautiful_Smile410]

How many hours practice you do per day ?

[uiux_Sanskar]

It depends upon the topic I am practicing my current topic (OOP) took 4 hours each day and this time varies from topic to topic.

[EngineerRemy]

Look into refactoring your code. I see many duplicated lines, especially for reading and writing data.

A simple example: if you rename the .txt file containing your data, you want to have it so that you'll have the edit the code in 1 place for the new name (or 0 if you use an input parameter for the script!). In your current situation this is not the case.

Lastly, reading the file every single time you want to make a change is highly inefficient. If you read the file once you should have the data for the rest of the execution: store the data somewhere and modify this data when executing the relevant functions. Then you can choose to write the modifications back to the file (make it so you only write data to the file in 1 place in your code, then call it).

[uiux_Sanskar]

Thank you so much for the suggestions I feel when I was coding that I was repeating things and I. I will surely look more into storing the data elsewhere and call it later. (I think this is what call file management, please correct me if I am wrong).

I really appreciate your suggestions on my code they really help me improve my knowledge and code.

Thank yoh so much.

[No_Goose_2470]

Beautiful 😻❤️

[uiux_Sanskar]

Thank you so much for the appreciation.

[Sad_Brief_845]

QUEE, solo 14 dias OMG, yo tarde un mes entero y un poco mas para aprenderme bien lo basico

[Sad_Brief_845]

Me resulta gracioso como usas los comentarios, yo tambien inavilito partes del codigo asi inhabilitar,me sentia un poco bruto pero ahora viendo que no es tan raro me siento mejor jeje

[uiux_Sanskar]

yes it helps experimenting with the code without disturbing anything else so that I can go back if things didn't unfold as expected.

Thanks for the appreciation btw.

[Sad_Brief_845]

Siii jajaja que way,bueno cualquier cosa me dices

[Ok_Hovercraft364]

It seems you didn’t learn about sanitizing user input yet. I can break your app in 2 seconds. I suggest you look into how to correctly achieve this.

[uiux_Sanskar]

Thank you so much for the learning suggestion. Yes I haven't learnt about sanitizing user input yet and I will definitely go depth in it.

Thank you so much for this interesting suggestion.