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# Week 34 - Augest 2023 | ||
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## 1. 📰 The 'Title()' Method and Its Nuances(Limitations) | ||
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The `title()` method is a versatile tool for enhancing text formatting. However, it's essential to recognize its limitations. The title() method isn't just about capitalizing; it also handles special characters and maintains proper casing rules. | ||
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Let's explore some insights: | ||
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🔍 **Use Case 1: Letters Only** | ||
```python | ||
text = "pycon 2023" | ||
formatted_text = text.title() | ||
print(formatted_text) # Output: Pycon 2023 | ||
``` | ||
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📋 **Use Case 2: Alphanumeric Exploration** | ||
```python | ||
text = "python3.10_release" | ||
formatted_text = text.title() | ||
print(formatted_text) # Output: Python3.10_Release | ||
``` | ||
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📄 **Use Case 3: Punctuation Perspective** | ||
```python | ||
text = "don't STOP believin'!" | ||
formatted_text = text.title() | ||
print(formatted_text) # Output: Don'T Stop Believin'! | ||
``` | ||
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## 2. 📚 Run A Python Module Directly With `__main__.py` | ||
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The `__main__.py` file empowers you to seamlessly convert your Python module into an executable script, enhancing usability and efficiency. | ||
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Have you ever wished to run a Python module directly as if it were a script? The `__main__.py` file holds the key! Let's explore a captivating use case that showcases its remarkable potential: | ||
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🔍 **Use Case: Transforming Modules into Scripts** | ||
``` | ||
my_module/ | ||
|-- __main__.py | ||
|-- helper_functions.py | ||
``` | ||
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```python | ||
# file : helper_functions.py | ||
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def some_function(): | ||
return "Python World" | ||
``` | ||
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Imagine you have a module named `my_module` containing useful functions. By adding the following code to `__main__.py`, you can make your module directly executable: | ||
```python | ||
from helper_functions import * | ||
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if __name__ == "__main__": | ||
# Your script logic goes here | ||
result = some_function() | ||
print("Result:", result) | ||
``` | ||
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Now, executing `python my_module` directly from the command line runs the script within the `__main__.py` file, providing instant access to your module's functionality without additional steps. | ||
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## 3. 🔍 Unraveling Dictionary Literals and Constructors | ||
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Dictionaries are fundamental for storing and accessing key-value data, and Python's versatility in creating them caters to various scenarios. | ||
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Dictionaries are essential data structures in Python, and the methods to create them are fascinating. Let's explore these methods along with some captivating use cases: | ||
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🔍 **Use Case 1: Dictionary Literals** | ||
```python | ||
employee = {'name': 'Alice', 'age': 30, 'department': 'HR'} | ||
``` | ||
Dictionary literals allow you to create dictionaries directly by listing key-value pairs enclosed in curly braces. Perfect for concise and readable code. | ||
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📋 **Use Case 2: Dictionary Constructor** | ||
```python | ||
colors = dict(red='#FF0000', green='#00FF00', blue='#0000FF') | ||
``` | ||
The dictionary constructor lets you create dictionaries using the built-in `dict()` function. Ideal for dynamically constructing dictionaries from various sources. | ||
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📄 **Use Case 3: Merging Dictionaries** | ||
```python | ||
defaults = {'theme': 'light', 'font_size': 12} | ||
user_preferences = {'font_size': 14, 'language': 'en'} | ||
merged_preferences = {**defaults, **user_preferences} | ||
``` | ||
Combine dictionaries effortlessly by unpacking them into a new dictionary. A powerful technique for overriding default values. | ||
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🔗 **Use Case 4: Creating Dynamic Dictionaries** | ||
```python | ||
keys = ['a', 'b', 'c'] | ||
values = [1, 2, 3] | ||
dynamic_dict = dict(zip(keys, values)) | ||
``` | ||
Construct dictionaries dynamically by using the `zip()` function to combine lists of keys and values. | ||
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**🚀 In a Nutshell:** | ||
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Choose dictionary literals for straightforward dictionary creation, and opt for the dictionary constructor when you need more flexibility, such as when dynamically constructing dictionaries or merging multiple dictionaries. | ||
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## 4. 🧹 Discovering isort: The Art of Import Arrangement | ||
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Import statements – a gateway to the world of functionality. But arranging them can be a challenge. Enter `isort`, the Python package that effortlessly arranges your imports for clarity and readability. Behold how easily you can get started: | ||
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1. **Installation of isort** via pip: | ||
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``` | ||
pip install isort | ||
``` | ||
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2. **Running isort** on your Python file: | ||
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``` | ||
isort your_file.py | ||
``` | ||
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🌟 Witness the transformation as your imports fall into a harmonious order! | ||
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🌐 **A Symphony of Imports: Prioritize with Precision** | ||
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Picture this: system packages, third-party modules, and local imports, all in symphonic order. `isort` brings this vision to life: | ||
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```python | ||
# Before isort | ||
from flask import Flask, render_template | ||
import os, sys | ||
from datetime import datetime, timedelta | ||
from my_local_module import my_function | ||
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# After isort | ||
import os | ||
import sys | ||
from datetime import datetime, timedelta | ||
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from flask import Flask, render_template | ||
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from my_local_module import my_function | ||
``` | ||
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🧩 **Custom Choreography: Tailoring isort to Your Tunes** | ||
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`isort` is not just a one-size-fits-all solution; it dances to your rhythm. Craft your own dance steps with configuration options in `pyproject.toml`: | ||
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```toml | ||
# pyproject.toml | ||
[tool.isort] | ||
profile = "black" | ||
line_length = 88 | ||
known_third_party = ["flask", "requests"] | ||
``` | ||
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🔍 **isort in Your Workflow Ensemble: Effortless Integration** | ||
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Seamlessly blend `isort` into your development routine. Set it as a pre-commit hook using tools like `pre-commit`. Feel the magic as your imports gracefully align with every commit. | ||
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## 5. 🕰️ Master Time with Python's Scheduler! | ||
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In the chaotic world of programming, managing tasks at specific intervals is a breeze with Python's built-in `sched` module. Let's jump into a simple example to showcase its power: | ||
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```python | ||
import sched | ||
import time | ||
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def greet(name): | ||
print(f"Hello, {name}! It's time to shine.") | ||
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# Create a scheduler instance | ||
scheduler = sched.scheduler(time.time, time.sleep) | ||
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# Schedule the greeting | ||
scheduler.enter(5, 1, greet, ("Python-world",)) | ||
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# Run the scheduler | ||
scheduler.run() | ||
``` | ||
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🚀 **Automation at Your Fingertips: Scheduled Tasks** | ||
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Python's scheduler isn't limited to just delaying functions. You can schedule tasks at specific times, automate backups, and more. Here's a snippet to illustrate scheduling a task every hour: | ||
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```python | ||
import sched | ||
import time | ||
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def hourly_task(): | ||
print("Performing hourly task!") | ||
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scheduler = sched.scheduler(time.time, time.sleep) | ||
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# Schedule the task every hour | ||
interval = 3600 # 1 hour in seconds | ||
while True: | ||
scheduler.enter(interval, 1, hourly_task, ()) | ||
scheduler.run() | ||
``` | ||
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⏳ **Cron-like Scheduling: `schedule` Library** | ||
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For more advanced scheduling, the `schedule` library offers a cron-like syntax. Check out how easy it is to schedule tasks with this powerful tool: | ||
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```python | ||
import schedule | ||
import time | ||
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def daily_task(): | ||
print("Daily task is due!") | ||
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# Schedule a task to run daily at 3:30 PM | ||
schedule.every().day.at("15:30").do(daily_task) | ||
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while True: | ||
schedule.run_pending() | ||
time.sleep(1) | ||
``` | ||
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🔍 **Tailoring to Your Time Needs: Versatility of Scheduling** | ||
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Whether it's running regular maintenance scripts, sending automated emails, or managing data backups, Python's scheduler empowers you to automate tasks according to your precise timing needs. | ||
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🌐 **Unlock the Potential of Python's Scheduler!** | ||
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Say goodbye to manual task management and hello to efficient automation with Python's scheduler. From simple delays to intricate cron-like scheduling, Python has your back when it comes to managing time and tasks. |
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