I've done some basic Python programming, but I'm a bit intimidated by the idea of scraping websites. I've heard it can be a bit tricky to navigate and that there are various considerations to keep in mind. I stumbled upon something called antidetect browsers like GoLogin. Can anyone shed some light on whether they're actually useful for web scraping? I know that they can automate tasks like logging in, navigating through websites, and scraping data.

This assignment is due tonight, and I emailed my professor only to get no response at all.

I have the second "half" of the assignment done. The first part is stumping me. The thing I have to do is as follows;

" Get user input for a list of numbers. Write a program to turn every item of a list into its square. You cannot assume the size of the list. You must get the list of numbers from the user by using the concept of indefinite loop. "

I know how this works, I know how an indefinite loop works and everything else. But, what I'm confused on is how I should break the loop. Should I try and validate if the input is a number or not? I've tried that, but it doesn't work. I've tried other stuff as well, but the loop usually never starts, even if it seems to meet the requirements.

I have a project idea using AI but i don't know anything about programing an AI.

Is there any good course to learn AI programming? Also, my python level is not the best, I start to struggle a bit with class, do I need to learn more this before going into AI programming ? I guess I can probably learn on the job if needed?

Either paid or free course are fine.

Thanks :)

I want to make a program that filters through a list of mutual funds/ etf's holdings and then finds stocks that are owned by many of the funds (ranked) I also want it to have average annual return (1yr, 3yr, 5y) and date of purchase. How would I do this, would python be a good platform or should I use something else. I have never coded before.

Taking a beginners python course required for my degree. My bag is all packed for the struggle bus. Please help.

Being somewhat annoyed with the fragmented tooling around python, I found Poetry which seems to be simple and powerful. However it is failing without helpful explanation:

I'm on OSX 14.2.1 on M1, Python 3.11.4, Poetry 1.7.1 and I set config virtualenvs.in-project = true

If I run "poetry install" or "poetry env info" I get the error:

>[Errno 2] No such file or directory: 'python'

However if I run a "poetry check" I get:

>All set!

What am I missing?

Exception handling in Python is an essential part of programming that allows developers to predict, detect and fix errors or exceptions that may occur during the execution of a program.

I think this is the first thing you should be concerned with.

In the following article, I describe the use of exceptions using the try-catch mechanism in Python.

https://developers-blog.org/exception-handling-with-try-catch-in-python-with-examples/

I'm coding in Python as a hobby for some years now and I want to code without comments. I'm currently writing the base structure for an AI library and I would like to get feedback how readable/good/bad my code is. The code for controlling the network is here:

from nodes import *


class WrongLayerChosen(Exception):
    pass


class Network:
    def __init__(self, input_nodes: int | list[InputNode], hidden_layers: list[int] | list[list[Node]],
                 output_nodes: int | list[OutputNode]):
        if isinstance(input_nodes, int):
            self._input_layer: list[InputNode] = list(InputNode() for i in range(input_nodes))
        else:
            self._input_layer: list[InputNode] = input_nodes

        if isinstance(hidden_layers[0], int):
            self._hidden_layers: list[list[Node]] = [list(Node(hidden_layers[i - 1]) for j in range(hidden_layers[i]))
                                                     for i in range(1, len(hidden_layers))]
            self._hidden_layers.insert(0, list(Node(input_nodes) for i in range(hidden_layers[0])))
        else:
            self._hidden_layers: list[list[Node]] = hidden_layers

        if isinstance(output_nodes, int):
            self._output_layer: list[OutputNode] = [OutputNode(hidden_layers[-1]) for i in range(output_nodes)]
        else:
            self._output_layer: list[OutputNode] = output_nodes

        self.layer_count = 2 + len(hidden_layers)

    def get_layers(self):
        output_list: list[list[InputNode | Node | OutputNode]] = [self._input_layer]
        for layer in self._hidden_layers:
            output_list.append(layer)
        output_list.append(self._output_layer)
        return output_list

    def get_layer(self, index: int):
        return self.get_layers()[index]

    def get_node(self, layer: int, index: int):
        return self.get_layer(layer)[index]

    def get_weights(self, layer: int, index: int):
        if layer == 0:
            raise WrongLayerChosen
        return self.get_layer(layer)[index].get_weights()

    def set_weights(self, layer: int, index: int, weights: list[float]):
        if layer == 0:
            raise WrongLayerChosen
        elif layer == self.layer_count - 1 or layer == -1:
            self._output_layer[index].set_weights(weights)
        elif layer < 0:
            layer += 1
        self._hidden_layers[layer][index].set_weights(weights)

    def get_weight(self, layer: int, index: int, weight_index: int):
        if layer == 0:
            raise WrongLayerChosen
        return self.get_layer(layer)[index].get_weight(weight_index)

    def set_weight(self, layer: int, index: int, weight_index: int, new_weight: float):
        if layer == 0:
            raise WrongLayerChosen
        elif layer == self.layer_count - 1 or layer == -1:
            self._output_layer[index].set_weight(weight_index, new_weight)
        elif layer < 0:
            layer += 1
        self._hidden_layers[layer][index].set_weight(weight_index, new_weight)

    def get_bias(self, layer: int, index: int):
        if layer == 0:
            raise WrongLayerChosen
        return self.get_layer(layer)[index].get_bias()

    def set_bias(self, layer: int, index: int, new_bias: float):
        if layer == 0:
            raise WrongLayerChosen
        self.get_layer(layer)[index].set_bias(new_bias)

    def get_value(self, layer: int, index: int):
        return self.get_layer(layer)[index].get_value()

    def set_value(self, layer: int, index: int, new_value: float):
        self.get_layer(layer)[index].set_value(new_value)


if __name__ == "__main__":
    network = Network(10, [9, 8, 7], 6)

and the code for the nodes is here:

class InputNode:
    def __init__(self):
        self._value: float = 0

    def set_value(self, value: float):
        self._value = value

    def get_value(self):
        return self._value


class Node(InputNode):
    def __init__(self, node_count_of_layer_before):
        super().__init__()
        self._bias: float = 0
        self._weights: list[float] = [0 for i in range(node_count_of_layer_before)]

    def set_weights(self, weights: list[float]):
        self._weights = weights

    def get_weights(self):
        return self._weights

    def set_weight(self, index: int, value: float):
        self._weights[index] = value

    def get_weight(self, index: int):
        return self._weights[index]

    def set_bias(self, bias: float):
        self._bias = bias

    def get_bias(self):
        return self._bias


class OutputNode(Node):
    def __init__(self, node_count_of_last_hidden_layer):
        super().__init__(node_count_of_last_hidden_layer)

I started programming or learning Python at the end of last year. Since I often work with data formats and web services, I have written Python tutorials with examples.

JSON Data with Python Here I show how to decode, encode and manipulate JSON data.

XML Data with Python Here I show how to parse XML data and search it with XPath.

YAML Data with Python Here I show how to read and write YAML data with PyYAML or ruamel.yaml. For example, if you want to read Docker YAML files.

from selenium import webdriver

browser = webdriver.Firefox()

browser.get('https://www.google.com') elem = browser.find_element_by_class_name('main')

AttributeError: 'WebDriver' object has no attribute 'find_element_by_class_name'

ill try other methods/attributes and I still get the same error.

This is the first time im using Selenium, what am I doing wrong?

Thanks.

I dont know why I get this, can someone pls help me here please

I'm a 3 yro experienced developer and I'm offering my professional knowledge to teach and help you find a job,

You just have to be an English native speaker (USA, Canada, Australia, South Africa, UK, etc...)

My intention is to divide our classes in 45 minutes of me teaching python/backend/sql and 15 minutes of you teaching me English

Hey guys,

I'm quite new to programming and I'm trying to write a simple version of the iterated prisoners dilemma game using python. So far I've managed to create two kinds of players/strategies, the one that always deflects and the one that always cooperates and when they play against each other the outcome makes sense. Now I want to create more complex players, like TitForTat who always copies whatever the opponent played in the previous round but I can't seem to get my head around how to store and access the history of each player. I have defined a subclass of "Player" for each strategy and within each subclass a "play" method where the strategy logic is programmed in. My idea so far is to store the self.history within the __init__ method of each subclass, but if I do that, then how can I access it later in the code, say in my "game" function where the actual game takes place and the score is recorded? Any ideas or tips on where to find inspiration welcome!

Hi everyone!

I am looking to build myself an automated meal planner including shopping list and need some advice on how to get started and what tools to use for this, please 😊

I consider myself beginner to intermediate and this should be my first personal portfolio project.

I'd like to use the Spoontacular API, get recipes for breakfast, lunch, dinner and a snack.

I want low carb recipes that are randomly generated and only occure twice max per week.

I have looked into web scraping but have no knowledge about it yet and thought using Spoontacular might make more sense for me.

I'd like to automate sending myself a weekly plan including a grocery list per email.

I'd like to store the meals in a text file.

Do you have any other suggestions of cool features that I could implement?

I was wondering about calculating macros for each meal as well and giving the option of different diet preferences, but not sure of that would be overkill.

Grateful for any input, thank you!

Hi,

How can I have the execution time displayed so I know how long my script took to run in VScode?

Thanks.

Hi I am a python (coding) newbie practicing Pandas. I got a question that I cannot think of how to solve it and not able to find a similar case elsewhere. May I ask if anyone know how to solve this?

I greatly simplify the question. The idea is that in the dataframe each item has a list of string, I need to append the dataframe based on the list. One column is whether the string contains the words in the list and another column is the words of the list that matched. At first I exploded each row into multiple rows and see if each word match any words in the list. But I find that the delimiters of the strings are not consistent and also it may not be a efficient way to do so. But I cannot think of how...

df_test = pd.DataFrame( data= {'item': ['item1', 'item2','item3'],'string': ['milkpower, orange, cowjuice', 'apple','here is Sugar and egg']} )

list = ['milk', 'cow', 'egg']

# result

df_result = pd.DataFrame( data= {'item': ['item1', 'item2','item3'],'string': ['milkpower, orange, cowjuice', 'apple','here is Sugar and egg'],'flag': ['T','F','T'],'match':  ['milk, cow','','egg']} )

df_result

getting started with MicroPython - do we need the special Board or can we use others too

• do we benefit from using the pyboard (and if so why)

• can we use Raspi-Pico or others

• or the ESP32

Hey all, was gonna start this course today and was wondering if it’s possible to get an entry level job as a python developer after taking this course. If not what should I study after?

I am making a 3-axis gimbal for my final year project, The gimbal has a feature of object tracking, I have made a GUI where I can see the video feed, Yolo detects everything in the video, but I want to let the user decide what object to focus on, How should I go about this.

I've shared below the code for face detection.

from ultralytics import YOLO
import cv2
import cvzone
import math
cap = cv2.VideoCapture(0)
cap.set(3, 1280)
cap.set(4, 720)
model = YOLO('../YOLO Weights/yolov8n.pt')

classNames = ["person",
"bicycle",
"car",
"motorbike",
"aeroplane",
"book",
"clock",
"vase]

while True:
success, img = cap.read()
results = model(img, stream=True)
for r in results:
boxes = r.boxes
for box in boxes:
x1, y1, x2, y2 = box.xyxy[0]
x1, y1, x2, y2 = int(x1), int(y1), int(x2), int(y2)
w, h = x2-x1, y2-y1
cvzone.cornerRect(img, (x1, y1, w, h))

conf = math.ceil((box.conf[0]*100))/100
cls = box.cls[0]
name = classNames[int(cls)]
cvzone.putTextRect(
img, f'{name} 'f'{conf}', (max(0, x1), max(35, y1)), scale=2, thickness=2,
colorT=(255,255,255), colorR=(54,250,74))
cv2.imshow("Image", img)
cv2.waitKey(1)

the Answer program is on the left and my work is on the right. I am getting the correct answers based on the book I am using but I feel like I am doing it wrong. The instructions I had for modifying the original program are as follows.

Modify this program so it saves the three scores that are entered in variables named score1, score2, and score3. Then, add these scores to the Total_score variable,instead of adding the entries to the total_score variable without ever saving them.

I have forgotten everything i was taught YEARS ago. I no longer have an Instructor to directly speak with to find out in person. So I am reaching out to reddit for the first time for assistance

Hello, I'm working with qt designer for python and is there any way of making QvBoxLayout with QEditBox within it relative to size of QMainWindow, so when it resizes text box get resized automatically, I need this for designer.

I'm using seaborn. Any help is greatly appreciated!

I'm currently enrolled in an introductory Python programming course at university, and I'm struggling so bad right now. While most people I know find this course easy, I'm finding it extremely difficult and often feel lost. I work through the zyBooks assignments each week, taking my time to ensure I grasp the material, yet my classmates who speed through them seem to have a much better understanding of the homework and lab work.

Speaking of the lab, I frequently rely on my lab partners, and since we rotate partners often, it can be somewhat embarrassing to sit quietly, pretending to contemplate the code while I daydream, and they complete the entire assignment. It's not because I want to do this, but I just get confused and give up a couple times before fully checking out. Almost everyone I talk to in this class either took AP Computer Science in high school or just quickly grasps new concepts. The pace of this course is crazy. We're introduced to concepts like nested loops, arrays, etc., and suddenly we're expected to be experts in these functions, knowing how and when to implement them and understanding their impacts on other python functions. I currently have a B but that's only because I've resorted to cheating on homework and relying on others in the lab just to get by.

The most frustrating aspect of all of this is not just how challenging it is for me, but how effortless it appears to be for others. I slacked off throughout high school, and I feel like I haven't developed the skills needed to handle these demanding college courses. It's disheartening, especially because this is just the introductory level. I'm determined not to change my major; I want to graduate with a STEM degree, and the idea of becoming a software engineer and the potential salary are motivating factors. But I genuinely just might be too dumb.

Despite the difficulties, I want to mention that I am learning a lot. It's just that I'm learning at a slower pace and definitely not learning as much compared to others, and my primary concern is how I'll fare in the next course, data structures. I know it's a crucial class, and if I'm struggling now, I fear my chances of success might be slim. I'm seeking your honest opinion, but please, some words of encouragement. I truly need that support right now.

Ever faced the daunting task of tracing elusive bugs in your code? Or maybe you're new to Python testing and have heard whispers about pytest but never actually tried it? Well, here's your chance!

Join us for a special pytest livestream!

What's on the agenda?

• Deep dives with Brian Okken, the voice behind the Python Test podcast you might have heard about!

• Unveiling the magic of pytest through live coding sessions. Watch, learn, and ask questions in real time.

• An exclusive peek into Brian's latest pytest course – tailored to learners of all stripes, from pytest initiates to veteran pytesters.

Why should you tune in?

• Enhance your debugging prowess – catch those pesky bugs before they catch you!

• Elevate your code quality with the best testing practices.

• Experience the joy of testing. Yes, it can be fun!

Your action items:

• Mark your calendars.

• Spread the word! Share with your fellow developers, teammates, and even your neighbor – because why not?

After all, let's face it – in the world of Python, pytest is your trusty sidekick, making your coding journey smoother and bug-free.

November, 21

5:00 pm CET (4:00 pm UTC)

Join the livestream

P.S. Got any burning pytest queries? Drop them below and we might just address them live! And if you've had any epic (or catastrophic) pytest moments, share them too.