Python strings presentation
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This document provides an overview of Python strings, including their definition, creation, and storage, as well as methods for slicing, modifying, concatenating, and formatting strings. It highlights key string functions such as upper(), lower(), strip(), and how to handle escape characters. The document serves as an informative guide for understanding and working with string data types in Python programming.
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![Storage of strings
• Strings are stored as arrays
• Traversing through a string and accessing its elements can be done
using its indices.
• There is no character data type in python , it stores as a string of length
1.
How do we determine the length of the string?: len()
How do we check if a required word/letter is there in the
string?:keywords “in” & “not in”
How do we get the string printed in a desired range?
A[1]
A[0] A[2] A[3] A[4] A[5]](https://image.slidesharecdn.com/pythonstringspresentation-210607122053/85/Python-strings-presentation-4-320.jpg)
![Slicing strings
• If a range of characters in a string are required slicing is used.
• The syntax for slicing is
strName[start:end]
• Here,
• strName is the name of the string
• Start is the index of the starting letter of range
• End is the index of the ending letter of range
How do we use slice syntax if we count from the end?
Negative indexing](https://image.slidesharecdn.com/pythonstringspresentation-210607122053/85/Python-strings-presentation-5-320.jpg)
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How the US Navy Approaches DevSecOps with Raise 2.0
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Who will create the languages of the future?
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Can you "vibe" a DSL?
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Artificial Intelligence Applications Across Industries
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Software Engineering Process, Notation & Tools Introduction - Part 4
Software Engineering Process, Notation & Tools Introduction - Part 4Gaurav Sharma Software Engineering Process, Notation & Tools Introduction
Meet You in the Middle: 1000x Performance for Parquet Queries on PB-Scale Dat...
Meet You in the Middle: 1000x Performance for Parquet Queries on PB-Scale Dat...Alluxio, Inc. Alluxio Webinar
June 10, 2025
For more Alluxio Events: https://www.alluxio.io/events/
Speaker:
David Zhu (Engineering Manager @ Alluxio)
Storing data as Parquet files on cloud object storage, such as AWS S3, has become prevalent not only for large-scale data lakes but also as lightweight feature stores for training and inference, or as document stores for Retrieval-Augmented Generation (RAG). However, querying petabyte-to-exabyte-scale data lakes directly from S3 remains notoriously slow, with latencies typically ranging from hundreds of milliseconds to several seconds.
In this webinar, David Zhu, Software Engineering Manager at Alluxio, will present the results of a joint collaboration between Alluxio and a leading SaaS and data infrastructure enterprise that explored leveraging Alluxio as a high-performance caching and acceleration layer atop AWS S3 for ultra-fast querying of Parquet files at PB scale.
David will share:
- How Alluxio delivers sub-millisecond Time-to-First-Byte (TTFB) for Parquet queries, comparable to S3 Express One Zone, without requiring specialized hardware, data format changes, or data migration from your existing data lake.
- The architecture that enables Alluxio’s throughput to scale linearly with cluster size, achieving one million queries per second on a modest 50-node deployment, surpassing S3 Express single-account throughput by 50x without latency degradation.
- Specifics on how Alluxio offloads partial Parquet read operations and reduces overhead, enabling direct, ultra-low-latency point queries in hundreds of microseconds and achieving a 1,000x performance gain over traditional S3 querying methods.
GDG Douglas - Google AI Agents: Your Next Intern?
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A first look at Google's new Agent Development Kit.
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FME as an Orchestration Tool - Peak of Data & AI 2025
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Reimagining Software Development and DevOps with Agentic AI
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Looking for a BIRT Report Alternative Here’s Why Helical Insight Stands Out.pdf
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Plooma is a writing platform to plan, write, and shape books your way
Plooma is a writing platform to plan, write, and shape books your wayPlooma Plooma is your all in one writing companion, designed to support authors at every twist and turn of the book creation journey. Whether you're sketching out your story's blueprint, breathing life into characters, or crafting chapters, Plooma provides a seamless space to organize all your ideas and materials without the overwhelm. Its intuitive interface makes building rich narratives and immersive worlds feel effortless.
Packed with powerful story and character organization tools, Plooma lets you track character development and manage world building details with ease. When it’s time to write, the distraction-free mode offers a clean, minimal environment to help you dive deep and write consistently. Plus, built-in editing tools catch grammar slips and style quirks in real-time, polishing your story so you don’t have to juggle multiple apps.
What really sets Plooma apart is its smart AI assistant - analyzing chapters for continuity, helping you generate character portraits, and flagging inconsistencies to keep your story tight and cohesive. This clever support saves you time and builds confidence, especially during those complex, detail packed projects.
Getting started is simple: outline your story’s structure and key characters with Plooma’s user-friendly planning tools, then write your chapters in the focused editor, using analytics to shape your words. Throughout your journey, Plooma’s AI offers helpful feedback and suggestions, guiding you toward a polished, well-crafted book ready to share with the world.
With Plooma by your side, you get a powerful toolkit that simplifies the creative process, boosts your productivity, and elevates your writing - making the path from idea to finished book smoother, more fun, and totally doable.
Get Started here: https://www.plooma.ink/
Migrating to Azure Cosmos DB the Right Way
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Making significant Software Architecture decisions
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Software Engineering Process, Notation & Tools Introduction - Part 3
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Advanced Token Development - Decentralized Innovation
Advanced Token Development - Decentralized Innovationarohisinghas720 The world of blockchain is evolving at a fast pace, and at the heart of this transformation lies advanced token development. No longer limited to simple digital assets, today’s tokens are programmable, dynamic, and play a crucial role in driving decentralized applications across finance, governance, gaming, and beyond.
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Python strings presentation
- 1. Python strings A QUICK RECAP PRESENTED BY: S.VEDA GAYATHRI B.TECH (2nd) Electronics and Instrumentation engineering NIT SILCHAR
- 2. A QUICK GLANCE OVER: • PYTHON Strings • Slicing Strings • Modify Strings • Concatenate Strings • Format Strings • Escape Characters • String Methods
- 3. Python Strings A String is an array of characters, represented by quotation marks (‘ ’)or double quotation marks (“ ”) . A string in python is a data type (str) or can also be used as a string literal. How do we create a string and display it? How do we create multiline strings?
- 4. Storage of strings • Strings are stored as arrays • Traversing through a string and accessing its elements can be done using its indices. • There is no character data type in python , it stores as a string of length 1. How do we determine the length of the string?: len() How do we check if a required word/letter is there in the string?:keywords “in” & “not in” How do we get the string printed in a desired range? A[1] A[0] A[2] A[3] A[4] A[5]
- 5. Slicing strings • If a range of characters in a string are required slicing is used. • The syntax for slicing is strName[start:end] • Here, • strName is the name of the string • Start is the index of the starting letter of range • End is the index of the ending letter of range How do we use slice syntax if we count from the end? Negative indexing
- 6. Modify strings • Few basic modifications that can be done to the strings Upper() : Converts string to upper case letters Lower(): Converts string to lower case letters Strip(): Remove whitespaces in beginning or in the end Replace(,): Replaces a string with another string Split(): Seperates string if it finds a separator • The functions are used on a particular string with a dot operator. strName.upper()
- 7. Concatenation of strings • Joining two different strings/data types is called Concatenation. • Concatenation of different datatypes is not possible in python. • This concatenation is done using ‘+’ • If two variables are of str data type they can be concatenated easily with ‘+’ How do we perform addition of numbers with same operator? Type Casting How do we concatenate string and a number?
- 8. Format Strings • Strings and the numbers can be linked using format method. • It reserves a place for the number in the string using place holder with curly braces { } • The numbers are further assigned as the arguments passed through the format() • Values can be assigned to place holder to get the required order.
- 9. Escape Characters • There are some illegal characters that we cannot use inside a string. • Eg: the quotation marks , backslash etc.. • To insert the illegal characters , escape character is used. • It is a backslash followed by the illegal character. • Some familiar escape characters: Code Result ' Single Quote Backslash n New Line r Carriage Return t Tab b Backspace f Form Feed ooo Octal value xhh Hex value