Category: Python
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Understanding TypeAlias in Python 3.12 and PEP 695
In Python, especially with the recent advancements including Python 3.12 and the introduction of PEP-695, working with type hints has become more sophisticated and expressive. However, this also means that certain complexities arise when we attempt to interact with advanced type constructs like TypeAlias. Let’s dive deeply into the problem of handling type aliases properly…
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Reshaping a DataFrame by pivoting on specific columns and turning unique values into column headers
When working with data in pandas, it’s quite common to encounter the need to reorganize or reshape data for better analysis or presentation. In this blog post, I will take you through the process of reshaping a DataFrame by pivoting on specific columns and turning unique values into column headers, which involves creating a MultiIndex…
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Extracting URLs from urlpatterns
When working on a Django project, it often becomes necessary to programmatically access all the URLs defined in the project. This could be for documentation purposes, testing, or security audits. Django uses a combination of explicit paths in urls.py and router registrations (especially when using Django REST framework), which can handle URL patterns dynamically. Let’s…
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FileNotFoundError: No file ‘Snake/img/end.jpg’ found in working directory
Recently, I encountered a frustrating error with my Python-based games, such as Snake and Flappy Bird, which previously ran without hitches. The error message reads: FileNotFoundError: No file ‘Snake/img/end.jpg’ found in working directory. This issue arose even though I hadn’t made any changes to my code. Let’s dive into the details to understand what went…
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Using CSS Flexbox with dmc.Card
When designing responsive layouts with Dash, many developers lean on components from libraries like Dash Bootstrap Components (dbc) because of their inherent responsiveness and ease of use with grid layouts. However, if we decide to use the Dash Mantine Components (dmc) library, things can work a bit differently due to its unique styling and configuration…
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Reading and Parsing the Bazel File
When working with Bazel build systems, you might encounter the need to parse Bazel configuration files programmatically, for example, to automate updates or to integrate with other tools. Bazel files, like the one shown in the question, can store configurations using Python-like syntax. Today, I’ll walk you through how you can extract specific pieces of…
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Troubleshooting NaNs in NN.Sequential with ReLU
I recently encountered a problem while working on a neural network model in PyTorch, where after training on a significant amount of data (about 275,000 iterations out of approximately 300,000), the network suddenly started outputting NaN values. The model includes a fully connected neural network (nn.Sequential) with two hidden layers and a final output layer…
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Mastering Modulo: Simplifying Currency Counting in Homework
Hello everyone! As a novice in Python, I recently bumped into a challenge while working on a function for a class assignment, which involves calculating and simplifying the total denomination of U.S. coins into the least number of bills and coins. The task required the use of a previous function I had written, value_of_change(), which…
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Troubleshooting TinyMCE Import Issues: A Step-by-Step Guide
Troubleshooting Import Issues with TinyMCE and Similar Libraries Recently, I encountered a rather frustrating issue when attempting to import TinyMCE, a popular WYSIWYG editor, into my project. The problem was perplexing and did not seem restricted to TinyMCE alone; it appeared whenever I tried importing similar libraries. This made me wonder if there might be…
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Seeking Machine Learning Mentorships
Navigating the Path to Machine Learning Mastery Embarking on the journey to become a pro in machine learning can seem daunting at first, especially when you’re starting out. The field is vast and constantly evolving, but the good news is that you’re already proficient in Python, which is a tremendous asset as Python is one…