Python consulting portland jobs

Looking for web scrapping and automation expert with strong fundamental knowledge of various web frontend and backend frameworks. Task at hand - Should be able to write generic application to automatically sing in , sign up and fill forms for popular frameworks. NOT a website specific task but should work for any general website on these frameworks like ...and backend frameworks. Task at hand - Should be able to write generic application to automatically sing in , sign up and fill forms for popular frameworks. NOT a website specific task but should work for any general website on these frameworks like react , angular, etc Exciting project so only reply if you have the string internet fundamentals on these technologies. And can implement using python or any standard scriptin...

I'm looking for a professional who can seamlessly guide me through the process of applying for entry-level positions(interships) in the consulting, operations, business, supply chain, and marketing industries. The ideal freelancer for this project should be experienced in: - Full application submission: Completing job applications on my behalf with attention to detail and time efficiency. - Crafting tailored cover letters: Capable of producing engaging, industry-specific cover letters that sell and align my resume with the exact requirements of the job. - Resume Optimization: Able to revamp my existing resume, emphasizing skills and experiences relevant to the target industries and improving its visibility in applicant tracking systems. This task requires a person with excellen...

I'm looking for a seasoned developer who can connect an existing source code with a Betfair API. The expert would need to be ve...using data fetched -reflecting the entire data as exactly as possible ex: I have purchased license of betlab from codecanyon. Access and necessary credentials to the Betfair API have already been acquired, hence we can get started at once. Ideal candidate should have: - Proficient knowledge of Betfair API functionalities - Proficient in Python, PHP, Java, or similar languages - Experience in integrating APIs with existing code - Strong understanding of betting platforms, preferably Betfair Please include examples of previous similar projects in your proposal. Looking forward to a successful collaboration.

I am in need of a stylish and effective landing page for my consulting business. It's primary function? Capturing essential information from potential leads. Here's a brief overview: - Purpose: The landing page's principal function is to collect leads, showcase the business capability. To engage potential customers and invite them to start a conversation. - Information Collection: The future landing page must be designed to obtain the visitor's name, email, phone number, location and specific inquiries. A simple yet inviting, professional design and user interface is a must here, friendly and inviting enough to motivate visitors to share their contact details. - Key Message: I aim to communicate the unique values of my consulting services to my visitors...

...would be greatly advantageous. Proficiency in programming Python is required. Familiarity with web scraping frameworks and libraries like BeautifulSoup, Scrapy, or Selenium is highly desirable. While the initial focus is on '', the developed crawler should be adaptable enough to accommodate potential future websites with minimal adjustments. Additional Considerations: Given the likelihood of encountering website blocks during scraping attempts, the developer must possess experience in effectively utilizing proxies to mitigate this issue. Additional Resources: To aid in understanding the required data structure and selectors, I have prepared a Python script for your reference (Please note: I lack experience in Python). This script will offer insights...

- Analyze anonymized customer data to predict their likelihood of purchasing a POS system. - Build a model to prioritize outreach for our salesforce, maximizing sales during the campaign. - Deliver results in a clear and concise format. Required skills: -Experience with data analysis tools (python)

...deployment. Phase 1: Requirements and Planning Provide requirements for a server vps, e. g. for hostinger. Phase 2: Test Environment Setup Provision Test VM: A virtual machine matching the above specifications will be provided for testing. This VM will be accessible to the developer m for deployment and testing purposes. Environment Setup: Install necessary dependencies: Docker, Docker-compose, Python, Git, and other dependencies required for running the Chat GPT model. Configuration for web access, including setting up a reverse proxy (Nginx or Apache) and securing connections with SSL/TLS. Phase 3: Development of Installation Script and Instructions Script Creation: Develop a comprehensive script that automates the following: Installation of dependencies and environment ...

I'm looking for a highly skilled Python Django developer to build an e-commerce website. This site needs to include a shopping cart, product review and rating system, and comprehensive inventory management features. Key functionality includes: * User-friendly Shopping Cart: Users should be able to easily add and remove products from their cart. * Product Review and Rating System: Customers should have the ability to leave reviews and rate products. * Inventory Management: The platform should allow for smooth handling of inventory, tracking stock levels and automating restocks when necessary. * Adding live location and store in database Payment Processing: The website should integrate with Payment gateway/ for payment processing. It's crucial for the successful candidate...

...be simple to run, so whenever we create an article, it can easily or automatically fetch the images and we dont have to do anything. Ideal skills and experiences for this project would include: - Experience with WordPress plugin development - Experience with AI chat interaction - Knowledge of ai image manipulation and saving midjourney - Proficiency in automated file uploading in WordPress - Python and JSON may be helpful or whatever preferred language for script building. The ultimate goal for this plugin is to enhance the visual appeal of our articles, engaging visitors and improving onsite interaction with the beauty of relevant Ai images for each article. I look forward to working with someone who can provide a reliable solution to this need. blog example: shaneandsimple ...

I'm seeking an experienced data visualisation expert for the creation of an interactive D3.js project. Key Requirements: - Prior expertise in creating visuals from numerical data. - Strong proficiency in D3.js for advanced - may need to do data manipulation ising excel or python to get the data tonthe right format for visualisation (not simple bar or pie charts alone) - visualisation to be used in website - Proven skill in creating interactive data visualisations. I am aiming for these visualizations to be very interactive, allowing viewers to engage with the data in a dynamic way. The successful freelancer would ideally present a portfolio evidencing similar past projects. Working closely together, let's make data exciting visually!

I'm seeking a proficient developer with experience in both Arduino and Raspberry PI, to aid in porting my MIDI hardware controller with a touch screen interface to raspberry PI. The successful candidate will be experienced in Arduino, Python and Python UI, and have knowledge of PI input and output hardware IO messaging. Please see Arduino project here at GITHUB that you'll be effectively replicating on the PI: And video of later model I made so you can understand better what it is doing: I will work with you to port this over, with input of UI design (yes this visual look will be vague to start with, so we can orbit around and find the more ergonomic design - so there will

I am currently in urgent need of a patent lawyer based in the United States for a manufacturing invention. Responsibilities: - Assessing the patentability of my inventions - Writing, filing, and prosecuting patent applications on my behalf - Consulting on infringement risks and design alternatives Ideal Skills and Experience: - Proven experience as a Patent Lawyer - Knowledge and experience in Manufacturing patents - Excellent written and verbal communication skills - Ability to work under time pressure I hope to have this project completed as soon as possible. Qualified bidders, please share brief details of your experience and capacity to handle this urgent job.

...compelling company profile that focuses primarily on our consulting services. Key information to be incorporated includes: - About Us: A brief overview of our company, highlighting how we stand out in the operations consulting landscape. - Services/Products: A detailed section emphasizing our operations consulting work, offering an understanding of our expertise, methodologies, and value propositions. - Team/Management: Introduction to our team, emphasizing experience relevant to operations consulting. - Clients/Portfolio: Past projects, results, and testimonials from clients to demonstrate success in operations consulting. Ideal freelancers should have: - Experience in writing for the consulting industry - Familiarity with operations co...

I am in search of an enthusiastic web developer. You'll need: - To be a native English speaker (green card holders, visa holders are welcome), there will be video interview to check your verbal English skills and coding skills - Junior to mid-level experience - Proficiency in multiple programming languages: HTML/CSS, JavaScript, Python, Java, .NET, React - Familiarity with backend and database structure - Knowledge of cloud infrastructure Your principal task will be to provide technical support in interviews. I am offering competitive payment of $5k USD+ per month, with scope for increase as my business evolves. Please note that this role requires knowledge of the following technology stack: HTML/CSS, JavaScript. Your keenness to learn, problem-solving talent, and ability ...

I need a seasoned developer who can extract specific data from Twitter. The specific data to be extracted includes: - Tweets from spec...requirement, the users will be provided. - For each of these tweets, the data needed includes: date-time, text of the tweet, number of views it received, how many replies, retweets, and likes it got. Previous experience with Twitter API and data extraction is desirable for this task. You should be able to ensure accurate retrieval of details and to respect Twitter's usage policies. Proficiency in Python or similar language is also needed. Understanding of data scraping as well as knowledge in working with JSON data is highly beneficial. Please only bid if you can fulfill these requirements and deliver quality results. Looking forward to ...

I'm in need of an adept Python programmer who can help me build a Blackjack robot capable of two main functionalities: Counting Cards and Strategy Implementation. Key Responsibilities: - Designing and programming the robot to proficiently count cards during Blackjack games - Developing a smart strategy implementation module for the robot to follow Ideal Skills and Experience: - Thorough knowledge of Python programming - Previous experience in developing any game bots, especially in card games would be a plus - Familiarity with Blackjack rules and strategies This project involves a mediocre complexity level of Python coding, suitable for intermediate level programmers. I anticipate an accurate and efficient execution of the stated functionalities by the Blackj...

In need of a skilled Chat GPT Programmer with a focus on Conversational Commerce to join our team. As a Conversational Commerce Chat GPT Programmer, you will be responsible for developing, implementing, and optimiz...integrate, and optimize conversational AI solutions using Chat GPT for e-commerce platforms. Customize models for product recommendations, order assistance, and customer support. Analyze data to enhance user experiences and drive business growth. Collaborate with cross-functional teams and stay updated on AI advancements. Qualifications: Bachelor's degree in CS or related field, proficiency in Python/JavaScript, and experience with NLP technologies. Strong ML knowledge and familiarity with e-commerce systems preferred. Excellent problem-solving and communication s...

I am in need of an OCR system, preferably designed in Python or C#, that will capably extract numbers from PNG images. The unique challenge lies within the font of these numbers which is small, and might seem strange to typical OCR programs. You're permitted to modify images, but bear in mind that the resulting numbers must maintain their accuracy post-modification. Here are some key aspects: *The Main Objective* - The primary goal is to reliably extract numbers from my images. Ideal candidates for this project are those with deep experience in Python or C#, as well as an extensive background in Optical Character Recognition systems. A thorough understanding of manipulating image data will be considered a major advantage. I am hopeful for a solution that is effective...

Looking for an adept Python programmer to create an automated script for day trading on the Kotak Neo platform. The ideal candidate should have experience in working with trading APIs and a strong understanding of trading mechanisms. Key Requirements: - The Python script should be written for Kotak Neo platform - There should be a configuration file which has info like Instrument(NF, BNF, FNF, Sensex), Entry times. - Upon entry time, script will take realtime websocket data for ATM-1, ATM, ATM+1 - There will be condition to puch order if ATM LTP difference is less than 5. - Before punching the order, premiem price will be passed to my risk api (already developed) to get quantity. Desired Skills & Experience: - Proficiency in Python - Experience with trading A...

I am looking for a Python expert capable of automating tasks within Plaxis software. Your primary responsibility will be to devise a Python code that can define the heterogeneity of the soil in Plaxis 2D. Skills and Experience: - Strong Python programming skills - Prior experience or understanding of working with Plaxis software - Experience in defining soil heterogeneity using Python - Background in Geological Engineering or related field would be a bonus Details of the job: - Write Python code for Plaxis software automation - Develop a system to define soil heterogeneity within Plaxis 2D - Test the code for accuracy and efficiency - Provide comprehensive documentation on how the code works Your expertise should ideally lead to more streamlined and ef...

I'm looking for an expert in Python and Flask to upgrade my Home Surveillance system, currently functioning on Python 2.7, to the latest version of Python. The primary focus of this upgrade is to enhance the facial recognition feature of the system. This is the code: Key Responsibilities: • Upgrading the system software from Python 2.7 to the latest version. • Revamping the facial recognition feature to improve recognition accuracy. Specific Needs: • The system sometimes erroneously recognizes unknown faces. An enhancement to improve this issue is crucial to this upgrade. Ideal Skills and Experience: • Proficiency in Python and Flask. • Knowledge and experience in facial recognition technology. • Problem-solving

I am looking for an expert to teach me the intricacies of Python Django, specifically tailored for advanced learners. The course should be comprehensive, encompassing the following key areas: - Database Models - Form Handling - Authentication and Authorization The course duration I am aiming for is a robust 1 month period. I believe this would be adequate time to delve deep into each area and ensure a thorough understanding. Ideal candidates should have a solid background in Python Django and proven experience in teaching these advanced topics.

I'm seeking an advanced Python developer for the creation of a robust Man-in-the-Middle (MITM) application firewall. Your deep understanding of TCP sockets, TLS, and packet inspection would be applied to deliver high-quality code, which is my top priority for this project. Key Responsibilities: - Developing a MITM application firewall in Python - Ensuring quality code - Efficiently managing network traffic through the firewall Ideal Skills and Experience: - Profound understanding of Python (Advanced level) - Expertise in TCP sockets and TLS - Skilled in packet inspection The main objective is to develop a dependable firewall that can effectively manage network traffic. Your advanced level expertise will be instrumental in the successful execution of this proj...

Milestone 1: Using Python implement a machine learning algorithm (multiple linear regression) to predict startup profits (). The following steps should be done and need to be explain the code using # comments 1. Read the dataset from the csv file and put input data in X and output data in Y. 2. Deal with missing and categorical data (Data cleansing, even if there are no missing data) . 3. Divide data into four subsets (X_training, Y_training, X_test, and Y_test). 4. Train the learning model using (Linear regression algorithm) 5. Make a list of predictions Y_pred and compare it with Y_test. Explain what do you remark? 6. Make a prediction for a given data sample. 7. Without using "predefined functions" Find the following: 7.1. Total deviation of the regression line 7.2....

We are seeking a negotiator adept in lead generation within specific industries, including ed-tech, technology, finance, and healthcare companies, that can benefit from The Mavericks Consulting services through our website https//themavericksco.com. I am particularly interested in leads from US and EU. *Skills and Experience Needed:* * Proven experience in Sales, Lead Generation, or relevant role in Business Development. * Substantial knowledge of services offered by the Mavericks Consulting. * Acumen in translating leads into successful conversions. * Comprehensive understanding of business practices within US and EU. Main roles involve mapping out potential leads and actively converting these into sales opportunities. A successful candidate would be one comfortable wor...

I am in need of a seasoned fullstack developer who can assist me in developing AI driven low / no code landing pages and sales funnels. Ability to use AI tools for no code / low code solutions is essential. - Required Skills and Experience: - Excellent command on Python and a proven track record with e-commerce website development. - A strong understanding of shopping cart configurations is a necessity as I want this feature built into the site. - A deep knowledge of chatbot, NLP functions, and funnel automations. This is an essential part of the job, with these elements being incorporated into landing pages. - In addition, experience with creating engaging and user-friendly landing pages is desirable. Please only bid if you are knowledgeable in the mentioned areas and ar...

We are currently looking for experienced writers to produce high-quality articles on Python programming. Sharing few topics that we would like you to write about. Not less than 1500 words, with sample code and screenshots if necessary, with grammarly and plagarism checks done. Each Article should be in word document. Per article INR 500.

...- JavaScript, Python, and PHP development, integrating these languages to work seamlessly within the application. - Implement a MySQL database, crucial for managing data efficiently. The core functionalities will include: - User Authentication: To guarantee secure and personalized access to each user, employing robust security measures. - create a basic - Extracting data from StudentVue using ( see the link: ) and drop the data into MySQL (using WAMP) - Interactive Forms: Delivering an engaging user experience is a top priority. Hence, interactive forms are significantly required to gather user information and feedback. Skills and Experience: The ideal freelancer for this project should have diverse experience in JavaScript, Python, PHP, and MySQL

...not least we feature a job market for aviation professionals where airlines can post job listings. It's important to note that we don't process applications on our website, if a users wants to apply to the specific job they get redirected to the airlines recruitment portal. Requirements: This requires experience in HTML, CSS, JavaScript, and frameworks like React or Vue for the front-end, and Python/Django, Ruby on Rails, or Node.js for the back-end. Knowledge in database management systems like PostgreSQL or MySQL, along with API development, security measures, and authentication protocols, is critical. The ability to work with Figma designs to translate them accurately into functional web pages is also essential. The developer should be capable of implementing a us...

I am looking for a top-notch Python expert proficient in PyCharm to troubleshoot and resolve a problem with my .exe application that shuts down inexplicably after 136 turns, both on my VPS and personal PC running Windows. There are no specific error messages or codes upon shutdown, it just turns off completely, perhaps due to a memory issue or unwanted "sleeping" mode by the operating system. The ideal freelancer for this task should be: - Highly experienced with Python and PyCharm - Knowledgeable in optimizing applications for Windows environment - Skilled in diagnosing memory management issues - Familiar with system settings to prevent unwanted sleep or shutdown Your task will be to: - Diagnose the cause of the application shutdown - Implement a solution to e...

I'm in search of a developer with expertise in Python to build a basic level runtime scanner capable of smooth operation on Windows OS. This project demands sound understanding of runtime scanner development using Python, with specific experience in using the language for Windows OS manipulation. Key skills required for this would be: * Proficiency in Python * Strong knowledge of Windows OS * Understanding of basic runtime scanning principles and technologies Ideally, you should have a foundation in developing runtime scanners with Python, and a portfolio that demonstrates this would be especially valuable. This is a basic project not requiring complex features, just a solid, functioning runtime scanner for a Windows OS environment. If you have the exper...

I will create a Python script to predict or forecast future conditions based on input data, using various mathematical models.

Able to trade and view realtime statistic

I am in need of an AI programmer with expertise in Natural Language Processing (NLP). While specifications on language proficiency were skipped, a versatile programmer comfortable with at least one of Python, Java, or C++ is preferable. Key Requirements: - Demonstrated experience in AI programming, specifically in NLP. - Familiar with common programming languages (Python, Java, C++). Ideal candidates should highlight on their relevant past experiences in their applications.

...uploaded to our board and populate the extracted data into a text column within the same item. This enhancement aims to make resume information easily searchable, improving our recruitment efficiency. Essential Skills: - Experience with API - Proficiency in document parsing API integration - Knowledge in automation tools (e.g., Zapier, Integromat) - Scripting skills in Python or JavaScript - Understanding of data privacy and security Deliverables: - Automated workflow for text extraction upon resume upload - Population of extracted text into a specified text column - Brief documentation on the setup and maintenance Ideal Candidate: Someone with a background in API integrations, particularly with and document parsing services. The candidate

I'm in need of an intelligent professional who has extensive experience in web scraping, specifically with Python. The task at hand is to rectify and enhance my current scraper setup to ensure it can successfully extract the plethora of new products I'm trying to incorporate into my system. Key Tasks: * Investigate the issues causing the failure in scraping new product information. * Amend the respective codes and functions to allude the said issue. * Test and validate the revised setup to ensure accuracy and stability. Ideal Skills: * Expertise in Python * Strong knowledge in web scraping, particularly for product data * Problem-solving capabilities * Thorough testing and bug fixing skills are essential.

I require a data scraper that can systematically gather specific user demographics from Instagram. I need the user age, location, and gender. These data points should be scraped on a daily basis. Ideal freelancer for this project: - Expert in data scraping - Familiar with Instagram's API - Excellent knowledge in programming, with specific skills in Python or relevant languages - Exceptional attention to detail when it comes to data analysis and interpretation - Proven experience in similar projects.

I am in need of a talented software programmer with a particular focus on Python and Java. Here's a little about what I'm looking for: Key Responsibilities: - Code development - Bug fixing - Conducting testing and debugging Skills and Experience: - Python programming - Java programming - Entry-level experience in software programming This role is perfect for those just starting out in programming who are looking to apply their knowledge of Python and Java in a real-world setting. I'm excited to see what we can achieve together.

I am looking for a seasoned full stack developer to work on building a web application. Skills and Experience: - Proficiency in a combination of programming languages such as JavaScript, Python, and Ruby. Although this wasn't explicitly mentioned, these are foundational and beneficial for any full stack developer. - Expertise in html,css,javascript,AngularJS, Node.js and MongoDB technologies. Your familiarity with these specific technologies is vital for maintaining and improving our current stack. - Proven experience in developing web applications. The main goal of this project is to create a 1-2 page collage assignment project , make user-friendly web application. Title: e-commerce express Create simple web Using all above languages. Qualified candidates should be able t...

As a progressive business, we're constantly working with multimedia content. Unfortunately, our current video file format stored in AWS's S3 isn't exactly what we need. At this juncture, we're looking for an experienced Python programmer with a strong background in video transcoding who can use AWS mediaconverter to truncate the file length to 5 seconds and then use truncated file as input and convert it in possible codecs, resolution, and framerate as per this doc. We need the below codecs, resolution and framerates for specific filetypes. MP4 (MPEG-4). codecs:- AV1 AVC (H.264) HEVC (H.265) , resolution:- 320*240, 640*480,1280*720,1280*1080,1920*1080,3840*2160, framerates:- 30, 60 MOV (Apple QuickTime)

I'm looking for an expert Python/Vue Js developer to help with creating a task automation app, specifically aimed at web scraping, for Windows operating system. Notably, the application should be able to handle basic to intermediate data extraction tasks, details of which will be shared upon selection. Understanding of web scraping libraries like Beautiful Soup, Scrapy is highly desirable. Experience in automating tasks on Windows is a significant plus. Python prowess alongside Vue Js for interface creation is key. Optimal skills and experience include: - Proficiency in Python for scripting the automation tasks - Familiarity with web scraping libraries in Python - Experience with Vue Js for frontend development - Understanding of Windows platform and comp...

...to develop a logic and do a dummy project data of 1 path is provides below like this i have data of 80 paths of 39 planes. Core duties will include: - Analyzing and interpreting intricate aircraft sensor data - Developing reliable models for trajectory forecasting - Detecting any abnormalities or outliers in flight data - Utilizing Python for all data processing, analysis, and model development The ideal candidate should possess: - Solid experience with Python and its data processing and machine learning libraries - Proven knowledge in flight data interpretation and predictive modelling - Previous exposure on anomaly detection and flight trajectory forecasting would be advantageous. Your expertise will boost the effectiveness of our anomaly detection system and traject...

scrape data from autotrader using python and export it into csv file

I have code for login trading accound and fetch token data. I need to update code to my system. you can create new code for my requirement at same cost.I need to collect live data from the web and candle stick with different time frame.I can choose any minutes interval, I need you to collect Last 10 candle data from the Excel in the web and other details for each token, I will give token name in the excel, It will automatically display the rows of data. If i chanage time interval it will display those data only. Stock Broker account: If Buy signal find it will automaticlly place Buy order,etc., Note: I dont know about coding, If you install the code and run successfully at my system thereafter I will hire you and release the payment. If you agree this term you will apply this task Bude...

As the client, I am seeking a Python developer experienced in PyQt software to improve the functionality of my current project. Key tasks: - Enhance functionalities of the existing . - Develop and integrate new features into the software. Ideal skillset includes: - Strong proficiency in Python - Prior experience with PyQt software - Proven track record of feature enhancement and creation - Excellent problem-solving abilities - Solid understanding of application speed and performance optimisation. You will work to both improve upon existing elements of the software, as well as introduce new, innovative features to elevate overall user experience. Need to discuss on DM my requirements. Please contact me

I already have script which is written with python. Dashboard is vue js. I need revision. I need someone who have experience http toolkit for checking endpoints of mobile application. As an enthusiastic client, I'm in immediate need of an outstanding developer, skilled in Python and Vue Js for a mobile application project. The main objective of this application is to automate tasks, however, specific tasks to be automated were not identified, so the developer should be prepared for diverse automation possibilities. The ideal candidate for this project will: - Have extensive experience in Python and Vue Js - Be adept at developing automation systems - Have flexibility and problem-solving capabilities to deal with a broad range of automation tasks - Be able to ...

We're in search of a freelancer. Our Python code, which scrapes content on our server, has hit a snag and stopped functioning. We require someone proficient with AWS Ubuntu server to troubleshoot and rectify the issue with the Python code, restoring its functionality, Redis Knowledge is a plus.

I need a script in javascript or python which will remove blue frames from videos in a folder

I am in need of highly skilled Python, JavaScript, PHP, bootstrap, JQuery, and HTML programmers for a minimum of two major projects. The first project is focused on creating advanced Python tools for automating tasks of a penetration tester and bug bounty hunting. The tools should scan and exploit the most common vulnerability like XSS, IDOR, SSRF, RCE, Command injection, SQLI, and etc. To do all of this process manually take allot of time. It should be better to make a combo with some software that manage all of the work and Using AI to scan all of the file and codes and have a hacker mindset. For example burp suit have web scanner but it is not smart enough to think critically to find some vulnerability. of course sometimes its work but it is possible to create something mu...

I'm currently experiencing a problem with my python web3 tool for Pancakeswap v3. Specially, I'm getting annoying python syntax errors that I need a skilled developer to fix. - Specific issue: The syntax errors are majorly related to transaction execution. I'd like you to thoroughly check the code, debug, and fix the syntax issues impeding functional transaction execution. Ideal skills for this job: - Proficiency in Python - Experience in resolving python syntax errors - Understanding of web3 tools - Familiarity with Pancakeswap v3 is a plus. Your main task will be to standardize the python code syntax and ensure smooth transactions executions in Pancakeswap v3.