Managing FastAPI Projects with Poetry: A Step-by-Step Guide

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This guide will walk you through how to use Poetry to manage dependencies and structure your project in FastAPI . It includes detailed explanations of Poetry's core concepts and commands to help prevent issues that can arise during team collaboration and deployment. 1. What is Poetry? Poetry is a dependency management and packaging tool for Python. It goes beyond simply installing libraries by allowing you to clearly declare the dependencies your project needs and ensuring that all developers on the project have the same library versions. Clarity in Dependency Management : Explicitly manage your project's basic information and required libraries through the pyproject.toml file. Reproducible Builds : By locking all dependency versions in the poetry.lock file, it fundamentally prevents "it works on my machine" problems. Integrated Development Environment : It automatically creates and manages isolated virtual environments for each project and handles mo...

Regular expression to change the first letter of each line to uppercase

Regular Expression

When you execute this command, it will change the first letter of every line in the file to uppercase, leaving the rest of the line unchanged.

:%s/^\(.\)/\U\1/g

Break down and explain

This regular expression command breaks down as follows:

Regular expression

Description

:%s

Substitute command to find and replace text in the entire file.

^

Anchors the search to the beginning of each line.

\(.\)

Captures the first character of each line in a group (denoted by \(.\)).

\U\1

Replaces the captured first character with its uppercase version (\U) and the backreference to the captured group (\1).

g

This flag stands for “global”. When it appears at the end of the command, it means that all occurrences of the pattern in each line should be replaced.


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