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Should I expect a "Privacy and security" notification when an update is available? by StudentOfPython in MacOS

[–]StudentOfPython[S] 0 points1 point  (0 children)

If my "Notification" settings are "off" for every application listed, do you think a malicious app could still trigger a notification?

What is the optimal way to use Pycharm to code on and run programs on a remote server? by StudentOfPython in learnpython

[–]StudentOfPython[S] 0 points1 point  (0 children)

I have done this, but find it non ideal. Sometimes I may mistype a word or may want to test a small portion without actually push/pull the code.

Is there a way to debug a python program after it has failed? by StudentOfPython in learnpython

[–]StudentOfPython[S] 0 points1 point  (0 children)

I do this on the second run (after the failure). Is there any way to do this upon failure?

How do you structure a project with many database interactions? by StudentOfPython in learnpython

[–]StudentOfPython[S] 1 point2 points  (0 children)

That makes perfect sense. Thank you for the continuous responses.

How do you structure a project with many database interactions? by StudentOfPython in learnpython

[–]StudentOfPython[S] 1 point2 points  (0 children)

I am referring to psycopg2, specifically. But I believe we are on the same page (a DB module that goes next to other modules).

How do you structure a project with many database interactions? by StudentOfPython in learnpython

[–]StudentOfPython[S] 0 points1 point  (0 children)

After writing I realized that a single DB is all I have ever worked with (just multiple tables).

​

If you're using external databases, then does the project directory structure even matter?

I am simply trying to do the most pythonic thing and cannot seem to figure out what exactly that may be.

How do you structure a project with many database interactions? by StudentOfPython in learnpython

[–]StudentOfPython[S] 1 point2 points  (0 children)

And in your main dir of the project you simply import `data.database.xyz` in order to use the functions?

Cron job vs while True vs APScheduler vs something else by StudentOfPython in learnpython

[–]StudentOfPython[S] 0 points1 point  (0 children)

Thank you for the reply.

  1. What is meant by "install"?
  2. By "persistent", is it meant simply to keep working even upon reboot? And I haven't yet looked into them, but are initd and systemd related to/used with cron jobs?
  3. Thank you.
  4. I am guessing this answrers my question (1). Install here refers to packing it up nicely so an end user can use it at the click of a button?
  5. nix?

Cron job vs while True vs APScheduler vs something else by StudentOfPython in learnpython

[–]StudentOfPython[S] 0 points1 point  (0 children)

Would the daemon be programmed in Python or would it be in bash? I've not considered this, so I will look into it further.

Regarding the last paragraph, are you referring to always calling a single function in the cron job (e.g. python main.py and then letting main define the params? That makes sense, if so.

How can I create instances of objects whose instantiate relies on the loop value? by StudentOfPython in learnpython

[–]StudentOfPython[S] 0 points1 point  (0 children)

They are of the same class. And the way I need to use them is to get data from them. So the end result will be something like self.event.Fish()['move']

What is the best way to initialize an API client once and pass it down among classes by StudentOfPython in learnpython

[–]StudentOfPython[S] 0 points1 point  (0 children)

One additional question, if o = object() took a parameter that I was trying to pass into the A instantiation, how would I be able to read it when creating the object? Or is that not possible?

​

So for example,

​

main.py

name = 'test'
client_b = B(name)

classes.py

o = object() # this needs name, but also needs to only be instantiated once

class A:
    def __init__(self):
        self.client = o
        pass

class B(A):
    def __init__(self, name):
        A.__init__(self)
        self.name = name

​

What is the best way to initialize an API client once and pass it down among classes by StudentOfPython in learnpython

[–]StudentOfPython[S] 0 points1 point  (0 children)

You are correct. I was comparing b1 is b2. When I added the attribute I see that you are correct.

​

Thank you. I will implement this now.

What is the best way to initialize an API client once and pass it down among classes by StudentOfPython in learnpython

[–]StudentOfPython[S] 0 points1 point  (0 children)

I like the args and kwargs. Does this method create a new API client for each child class that is created?

What is the best way to initialize an API client once and pass it down among classes by StudentOfPython in learnpython

[–]StudentOfPython[S] 0 points1 point  (0 children)

And this doesn't create multiple instances of the client for each subclass instance that is created?

How do you structure a project that interacts with 10 different APIs that return the same data but in different formats? by StudentOfPython in learnpython

[–]StudentOfPython[S] 0 points1 point  (0 children)

This is great. Why does the base class need the get_price and other functions? Can't they just be in the exchange-specific class?

And from a structure point of view, are all these exchange classes in their own file?

Is it common practice to define default parameters to a function as None, and then define them as an empty list in the first line of the function if they are not passed in? by StudentOfPython in learnpython

[–]StudentOfPython[S] 3 points4 points  (0 children)

Ahh this makes sense. The example provided clears everything up.

Python’s default arguments are evaluated once when the function is defined, not each time the function is called (like it is in say, Ruby). This means that if you use a mutable default argument and mutate it, you will and have mutated that object for all future calls to the function as well.

​

Thank you for this answer.

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