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

Image
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...

OSI 7 Layers Table with Protocols and Devices

The OSI model divides computer networking into seven logical layers. Each layer has a unique purpose, related protocols, and network devices. The table below summarizes the OSI 7 layers with clear examples of protocols, PDUs, and devices used at each level.

OSI 7 Layers Explained with Protocols, PDU, and Devices
Layer Description Protocol PDU Devices
Application - Interacts between user and network application.
- API - set of routines that make up part of a software application
HTTP, FTP, IMAP, SNMP, POP3, SMTP Data Chrome, Firefox, Skype
Presentation - Formats the data of application/network to be presented for the destination to be sent.
- It can be viewed as the data translator between the application and network.
- Character set translation
- Data conversion
- Data compression
- Data encryption or decryption (if needed)
SSL, TLS
Session - Establishes a session between two nodes.
- Connection maintenance and termination
- Synchronization
- Dialog control
- Send to ports
H.245, RTCP, SCP, SDP Logical Ports
Transport - Ensures that the entire message is delivered to the destination or not.
- Service point addressing
- Segmentation & reassembling
- Connection control
- Flow control
- Error control
TCP, UDP Segment
Network - Controls the operations of the subnet, deciding which physical path the data takes.
- Logical addressing
- Routing
- Handling congestion issues
- Internetworking
IP (IPv4, IPv6), ICMP, IPsec, MPLS, ARP Packet Routers
Data Link - NIC – Switch – NIC
- Deals with data transfer
- Framing
- Physical addressing
- Access control
- Flow control
- Error control
Ethernet, PPP, ATM, CDP Frame Switch, Bridge
Physical - Concerned with the transmission and reception of the unstructured raw bit stream over the physical medium.
- Media characteristics
- Data encoding
- Transmission mode
Bluetooth, DSL, 802.11, Wi-Fi, ISDN Bits Repeater, Coax, Fibre

This OSI 7-layer table serves as a quick reference for students and IT professionals preparing for networking certifications like CCNA, CompTIA Network+, or just learning fundamental data communication concepts.

Comments

Popular posts from this blog

Resolving Key Exchange Failure When Connecting with SecureCRT to OpenSSH

SecureCRT] How to Back Up and Restore SecureCRT Settings on Windows

How to Set Up Vaultwarden (Bitwarden) on Synology NAS (Best Free Alternative to LastPass)