Python

**Venue:** Riverbank House, 2 Swan Ln, London EC4R 3AD **Please note:** 1\. 🚨🚨🚨 A valid photo ID is required by building security\. 🚨🚨🚨 2\. This event follows the [NumFOCUS Code of Conduct](https://numfocus.org/code-of-conduct). Please familiarise yourself with it before attending. If your RSVP status says "You're going" you will be able to get in. No need to show your RSVP confirmation when signing in. If you can no longer make it, please unRSVP as soon as possible. **Code of Conduct:** This event follows the NumFOCUS Code of Conduct. Please get in touch with the organisers with any questions or concerns. As always, there will be free food and drinks, generously provided by our host, Man Group. **Main Talks** 1. **Agentic Workflows for Data Engineers: How AI Agents Are Changing Our Daily Work** - [Yusuf Ganiyu](airscholar@gmail.com) Last month, I debugged a critical pipeline failure in 4 minutes that used to take 30. The difference? An AI agent that understands my data infrastructure. This isn't about replacing data engineers, it's about eliminating the toil that keeps us from high-value work. In this talk, I'll share practical experiments with agentic workflows from my work at AstraZeneca and teaching 20,000+ students at DataMasteryLab. We'll explore: * What agentic workflows actually are (beyond the hype) * Live demo: AI-assisted pipeline debugging with LangGraph * Practical patterns: Schema evolution, data quality monitoring, self-healing pipelines * The feature engineering bridge: Helping data scientists love you * What AI still can't do (and why that matters) Whether you're skeptical about AI hype or already experimenting, you'll leave with concrete patterns you can implement in your pipelines next week. 2. **Explore the Kingdom - Cursor the Data Engineer** - [Jethro Reeve](jethro.reeve@gmail.com) I built [explorethekingdom.co.uk](http://explorethekingdom.co.uk/ "http://explorethekingdom.co.uk") over Christmas using Cursor with Opus-4.5 and GPT-5.2 for the data engineering and UI. I've pulled \~15 Government data sources and have them represented on a map of the UK. This kind of data aggregation tool sells for thousands to niche consultancies. I built it while playing Minecraft on Boxing Day. What would you use it for? (Why) Is the software world so slow to catch up with the capabilities of vibe coding? **Lightning Talks** 1. **Github Codespaces for Data Analysis with Python - [Stelios Christodoulou](stelios.xristodoulou@gmail.com)** 2. **TBC** \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **Logistics** Doors open at **6.30 pm** (get there early as you'll need to sign in with building security). Talks start at **7:00 pm**, with drinks afterwards from **9:00 pm** at The Banker (EC4). We have reduced capacity for this event, but there will be plenty of people to discuss data science questions with. Please unRSVP in good time if you realise you can't make it. We're limited by building security on the number of attendees, so please free up your place for your fellow community members. If you want me to trim lightning talks down to two or shorten any abstracts, say which ones.

**🏸 Tuesday Badminton Session: 8-10 PM at QMSC Victoria** 📍 **Queen Mother Sports Centre (Everyone Active), Victoria, SW1** Hi Everyone, **RSVP Required:** Everyone attending the session must RSVP in advance, whether you’re a member, returning player, or joining us for the first time. Members can also confirm attendance by email or text if preferred. ----- ## 💰 SESSION FEE: £14 **💡 Why Pay More? Join as a Member Instead!** **Annual Membership: £450** = just **£8.65/session** (Save £278 per year vs pay-as-you-go!) **3-Month Trial: £155** – test the waters before committing **Student/U25/Unemployed: 20% OFF** all memberships 👉 **[View Full Membership Benefits & Join](https://www.sidsbadmintonclub.org.uk/membership.php)** **What You Get as a Member:** ✓ Premium feather shuttles included ✓ Priority access to both venues (Victoria & Richmond) ✓ League team eligibility ✓ Member WhatsApp group & social events ✓ This is a **membership-first club** – join the community! ----- ## 🏸 SESSION DETAILS **Venue:** Queen Mother Sports Centre (Everyone Active) 223 Vauxhall Bridge Road, Victoria, SW1V 1EL *(5-minute walk from Victoria Station)* **Skill Level:** Lower Intermediate Ladies (C+) | Intermediate Men (B) and above *(No beginners or improvers at Tuesday sessions)* **What’s Included:** • Premium feather shuttles provided (Yonex, Yehlex, Victor) • MatchMaking App grades your skill level based on wins/losses – see how you rank! • 5 courts available for play • Players grouped by skill level • Last 30 mins (when scheduled): grade-based competitive groups on allocated courts ----- ## 💳 PAYMENT **Cash preferred** – pay organisers **at the beginning of session** (correct change appreciated) **Bank transfer available** (**NOT for first-timers**) **First-timers:** You must pay at the start of the session and register on our MatchMaking App ----- ## 📋 IMPORTANT INFORMATION **Cancellation Policy:** Cancel **24 hours before** or you’ll be charged the full £14 session fee. Outstanding fees **must be cleared** before attending your next session. This helps us run sessions efficiently. **Parking:** Free from 6:30 PM (single yellow lines) and 7:00 PM (single red lines) on Tuesdays. Please check local signage before parking. **Not Sure About Your Level?** Attend your first session – we’ll help assess if it’s the right fit for you! **Liability:** Sid’s Badminton Club is not responsible for personal property loss or injury. ----- **Questions?** 💬 Text us on Meetup 📧 Email: info@sidsbadmintonclub.org.uk 📝 Or use our [Contact Form](https://www.sidsbadmintonclub.org.uk/contact.php) 🌐 Visit: [www.sidsbadmintonclub.org.uk](https://www.sidsbadmintonclub.org.uk/) **Looking forward to seeing you on court!** *Sid’s Badminton Club – Competitive play since 1981* !​​​​​​​​​

Join us for a relaxed and inspiring evening of storytelling! At this Open Mic Night, sci-fi and fantasy writers will share 5–10 minutes of their work—whether it’s a draft in progress or a polished piece. After everyone has read, **the audience will vote for one writer to take home a £20 Amazon Gift Card!** **You don’t have to read to attend**. If you’d rather just listen, support your fellow writers, and soak up the creativity, that’s absolutely welcome. This is a friendly, low-pressure environment for both readers and listeners. All we ask is that you please support the venue by buying drinks and snacks! **Want to read? We need at least 4 readers (maximum 6) for the event to go ahead. To sign up, message me privately or post on the event page in advance. You can also reach out via the WhatsApp group.** Come along, grab a drink, and let’s celebrate sci-fi and fantasy storytelling together!

**BOOK HERE**: https://sportas.co.uk/games/43574 **Game Description:** Mixed nationality and gender players play volleyball in our club for 10 years every Tuesday & Thursday from 8pm-10pm in upper intermediate and advance level. **Rules** Respect each other, focused on your own play and progress, be kind and cheer your team mate.

**\*\*THIS IS NOT A FREE EVENT & RSVP ON MEET UP DOES NOT GUARANTEE ENTRY\*\*** **TO ATTEND THIS EVENT A TICKET MUST BE PURCHSED FROM OUR WEBSITE. PLEASE CLICK HERE TO PURCHASE A TICKET:** [https://truedating.co.uk/events/speed-dating-in-bank-3-mar-2026](https://truedating.co.uk/events/speed-dating-in-bank-3-mar-2026) Join [True Dating](https://truedating.co.uk/), London's #No 1 speed dating and singles party host! With a track record of hosting hundreds of successful events all across London, we've helped thousands of people find their perfect match. **But what exactly is speed dating?** It's simple yet effective: You'll have the opportunity to meet up to 15 potential dates, with each mini-date lasting around five minutes. It's the perfect amount of time to gauge if there's a connection. Ladies remain seated while gentlemen rotate, ensuring you meet a variety of interesting individuals. Our events primarily attract working professionals who are tired of the endless swiping and are seeking something meaningful and long-term. At True Dating, you can enjoy a friendly and secure atmosphere knowing that everyone is single and looking for the same thing—love! The day after the event, you can log in to enter your matches and potentially set up a second date using our secure messaging service. **Please remember to enter your matches before 4pm as this is when the matching system closes.** And here's the reality check: In a bustling city like London, where everyone leads busy lives and dating options seem endless, finding the right person can be challenging. That's why our events are designed to increase your chances of meeting someone special who shares your goals and aspirations. Contrary to popular belief, speed dating events are not weird or creepy. They've become increasingly popular as a refreshing alternative to online dating. **What can you expect at our events?** \- Diverse attendees at each event \- Officially signed\-up participants \- Higher odds of finding compatible matches \- Friendly hosts to facilitate introductions **Don't miss out—register now for our next event! Spaces are limited, and our events often sell out fast.** We have years of experience organizing successful dating events and creating meaningful connections. We're so confident that you'll find someone worth meeting again that if you don't, your next event is on us! It's time to stop swiping and start dating in real life with True Dating. Join us for an unforgettable experience! **Important details:** Look out for an email from True Dating on the day of the event for account details. Event starts at 7:30 pm with a reserved area for True Dating attendees. Venue closes at 1 am. *Stop Swiping. Start Dating*.

Having children can be a personal, national and global decision. Globally, human population looks unsustainable. But some countries are seeing greater birth rates decline than others, especially in the developed world. At a personal level, the question involves accounting for career trade-offs and other costs. So, do we really need [more] children? We'll discuss... 1\. Do we really *need* to have children? Why? 2\. Why are birth rates declining internationally? 3\. Should government policies incentivise/reward people who decide to have children? *Join us for a relaxed group conversation where we explore the real life, the grey areas, and how our different cultures and backgrounds shape our views about key topics.* *Expect real talk, no judgment, and a chance to hear how others see it.* **\*Come for the discussion, stay for the friendships. Our weekly discussion series brings together thoughtful people for honest conversations on relationships, life, and society—with warm social vibes before and after.\*** **WHAT TO EXPECT:** * Good vibes only: we chat big topics in a chill, respectful way. No arguing - just open-minded exchange. * We warm up with casual socializing (come solo or with friends!) * The topic starts around 7:45/8pm, wraps around 9:30. * 🍕 There's pizza, drinks, milkshakes and snacks available at the bar (incl plant-based options) * And most people stay until late for drinks and mingling! **DISCUSSION FORMAT:** **Our group conversations are open and flexible - there is a very soft guided flow to ensure we focus on the main questions, and to ensure that everyone gets a balanced opportunity to speak. Here's a typically structure, but we adjust on the day depending on the turnout:** \- Introductions and thoughts *(\~5 mins).* \- Group breakouts per question *(\~20 mins x 3).* \- Final round of opinions *(\~10 mins)*. \- Mix and mingle\, make new friends\, get drinks etc *(\~until late)* **EVENT ETIQUETTE (Rules & expectations)** \- Debate the topic\, not the participants \- no personal attacks\! \- No phones\, no interrupting\, no bystanding \- Always follow the moderator/host instructions and guidelines **WHAT IS WORLD CITIZENS?** We're one of London's longest-running and largest communities. Since 2012 we run socials, cultural activities and stimulating discussions to foster meaningful exchange and learning among London's global professionals. They are inspired by MUN (Model United Nations) and salon discussions and offer a more relaxed and social evening version. **LOCATION DETAILS** What: Discussion session followed by social/networking When: Tuesday, 7:30pm until late. Where: Curzon Aldgate (bar area), 2 Canter Way, E1 8PS Closest stations: Aldgate East, Aldgate, Tower Hill/Gateway Cost: Pay for your own meals or drinks Hosts: We have a rotating team and the actual host of each event varies. Our regular members can also help you out with basic matters. *NOTE: like most guests, our volunteer hosts also attend after work and may happen to arrive after the start time. If you are punctual or earlier than our hosts, we highly appreciate this! Please feel free to start socializing already and/or get something to eat or drink - that’s the point of our events anyway. Our regular members can also help you out with any basic matters.* **\*Our other weekly events\*** \- Friday evening socials every week \- Saturday afternoon cafe in Chelsea \- Canary Wharf socials every other Wednesday \- Outdoor fun \(hiking\, kayaking\, etc\) every weekend \- Dining\, cultural and travel activities on\-demand **JOIN OUR TEAM!** We're all volunteers, so if you enjoy organizing activities or events in your spare time, while meeting great people every week, send a message to our team account "TP"! **DISCLAIMER** We are a 100% volunteer-run team. Though we have high standards in planning, this is a private informal activity so we cannot be liable for any damage or inconvenience. However, we put safety and comfort first. We take all complaints seriously, and take severe action against any harassment, verbal or non-verbal, and anti-social behaviour, towards our guests or team members. We collaborate with the police when needed. We take photos and videos which may include you to help promote the community in line with GDPR Data Protection law, as well as stock photos from Pexels or Unsplash. We may restrict or prioritize guests at our own discretion for safety, quality and logistics reasons. While our team's decisions may not be perfect we ask that you follow our decisions first and raise any disputes to discuss with us later and privately. By attending you understand, agree with and respect all terms of this disclaimer.

**BOOK HERE**: https://sportas.co.uk/games/45370 **Game Description:** Come and play in a casual​​​​​​​​​​​​​​​​​​​​​​,​​​​​​​​​​​​​​​​​​​​​​ friendly & social badminton session. The session is for mixed ability players (mainly beginners & intermediate players). So please be respectful and kind towards less experienced players - we all have to start somewhere We use YONEX MAVIS 300 Nylon Shuttlecocks. We have a few spare rackets if needed. Format: We play doubles for the whole time and keep rotating opponents/partners across courts so everyone plays each other. Venue: Entrance to the sports hall is on the corner of Celebration Avenue and Temple Mills Ln There are showers, changing rooms & a water fountain at the venue ‍♂️5 minute walk from Stratford International DLR Station Paid car parking is available on site **Rules** Classic doubles rules - can be explained at the start of the session if you’re new to badminton or need a reminder

2nd Sunday of every month, join us for a relaxed and fun language exchange, where meaningful conversations flow as freely as delicious coffee and tea! This isn't just practice; it's **accelerated progress** in a supportive setting, designed to quickly boost your **Mandarin, Cantonese and English** skills. **How We Make It Effective & Enjoyable:** * **Perfect Groupings:** We carefully match you with native speakers and learners at a similar level, ensuring comfortable and productive conversation practice. * **Forget awkward silences!** We provide fun, engaging discussion topics to spark lively chats and keep the conversation flowing. * **Maximise Your Practice:** Rotate between groups if you wish to connect with more people and strengthen your conversation skills! * **Expert Support:** Our experienced tutor is always on hand to help. 👌 **All levels welcome!** Native speakers and learners alike. 💛 Please support the cafe by buying a drink or snack while you are here - they've kindly let us use the space. We can't wait to welcome you! \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **Take your Mandarin beyond the exchange.** 🤝 If you’re looking for a bit more structure to go along with your conversation practice, let’s chat! We're offering **complimentary 1-on-1 advice sessions** to help you find the perfect learning path. Get a professional assessment of your level so you can study with confidence. **No commitment** required. [Book your Free Session](https://eu.bigin.online/org20070515371/bookings/course-advice) \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **China Unbound** is the best place to learn practical Chinese for adults. While most schools prioritise grammar and writing, China Unbound empowers you to confidently communicate in Chinese in real-world situations. Join us and discover a fun, fast, and personalised way to master Chinese! \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **🤘 FAQs:** **I'm learning Chinese, are the sessions suitable for beginners?** Yes! Come and speak as much or as little as you like, or just come and listen! There is no pressure! **Are there any discounts for Chinese lessons for members?** Yes, you can use code MEETUP10 for your exclusive £10 discount on our [Chinese courses](https://china-unbound.co.uk/personal/) site-wide! \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- 每个月的第二个星期天，来加入我们，享受一场轻松又有趣的语言交流体验！在茶香与咖啡的陪伴下，开启一场自然流畅、充满收获的双语对话。 这不仅仅是练习，而是一种更快提升你英语水平的高效方式。我们为你打造一个轻松友好、真正有用的语言环境，让你的口语交流能力飞速进步！ **我们如何让语言交换高效又好玩：** * **精准匹配，聊天不尴尬**：我们用心将你和母语者或相近水平的学习者配对，确保每一次对话都轻松自在又高效实用。 * **话题有趣，轻松破冰**：拒绝冷场！我们提前准备了有趣又实用的聊天话题，让你一开口就停不下来，交流自然顺畅。 * **灵活轮换，提升更全面**：想多练一点？欢迎自由选择是否换组，认识更多人、接触不同语言风格，快速提升真实沟通能力。 * **专业老师现场支持**：我们的资深语言导师会在现场提供实时帮助，确保你在交流中不断进步、有信心开口！ **活动详情：** 🗓️ **时间**：每月第二个星期日 ⏰ **时段**：下午 2:30 - 4:30 💰 **费用**：免费参加 不只是练语言，这里还有文化的碰撞、朋友的陪伴和成长的喜悦。现在就来加入我们，开启你的高效交流之旅吧！ **🤘 常见问题解答：** **我最后会不会一直说中文而一无所获？** -不会，因为我们的“快速聊天”模式鼓励大家用中/英文交换来交流。 **会员有折扣吗？** 有，欢迎你跟你学中文的朋友分享代码**Meetup10**，他们会获得10镑的独家折扣！

IMPORTANT - PLEASE READ! Welcome to the Highest Rated International Language Exchange group in London,🏆 with 1400+ reviews rated 5 stars ⭐⭐⭐⭐⭐ Join us on **Friday** for our weekend global language exchange and social 😊🍻🥂 TO ATTEND THIS EVENT YOU **MUST**👇👇 1. Have your Meetup confirmation visible on your phone when you arrive. 2. Collect & wear your badge as soon as you arrive and always BEFORE buying your drinks and food. 3. Pay the £2 event fee. The event starts at 7pm. **The event fee is £6 if you arrive after 8:30pm** Start meeting the community and having fun...lots of fun! www.languages.london 🇬🇧🇪🇸🇫🇷🇯🇵🇮🇹🇩🇪🇮🇳🇨🇳🇧🇷🇰🇷🇪🇬🇭🇰🇺🇸🇨🇴🇺🇦🇹🇷🇷🇺🇦🇺 WHEN & WHERE This Friday we'll be returning to The Craft Beer Co, St Mary Axe.** **Address: 29-31 Mitre Street, London, EC3A 5BU** https://maps.app.goo.gl/49HnHGap8hQMbQNWA **HOW WE DO IT** It's simple .... \~ When you arrive please collect your personalised language badge from us. We'll be waiting to give you a warm welcome 😃 \~ Please wear your badge during the event and always return it before you leave ♻️ \~ Start meeting the community and having fun...lots of fun! Please buy something from the bar to support the venue, who kindly offer us a dedicated space. 🇵🇱🇹🇼🇲🇽🇻🇳🇧🇬🇵🇸🇸🇪🇮🇱🇨🇦🇳🇱🇿🇦🇭🇺🇹🇭🇵🇪🇧🇴🇳🇬🇳🇿🇨🇭 **WHO** Languages in London events are organised for our community - being social, making new friends, building cultural bridges and always very relaxed. We have the largest number of languages and countries represented in our weekly language exchange and social events in London. This is **not** a dating event. Our events are open to Internationals, Locals, Expats, Students, Travellers..... Everyone! Are you an 18 to 24 year old? Come and explore our events. This is the event for a truly global community and for citizens from around the World. Is this the Intercambio you've been looking for? Want to practice your ingles, espanol , francais, italiano, Deutsch, portugues or other European languages? Asian languages ? Or maybe prefer to only speak English.... that's just fine. **All languages and all fluency levels are welcome** Spread the love...Bring your friends 💙 The creator and organiser of **Languages in London - Girish**, will always be visible at the event and there to support you and help with introductions, if you prefer. We want to remain the BEST language events group in London, being the biggest isn't our focus. These are real events with real people. We don't fill our events with inflated numbers and fictitious attendees 👻 **Community members that no-show at our events and inactive members are regularly removed from our group.** **LANGUAGES** Here's a selection of some of the languages that our community speak or have been practicing ... English, Spanish (incl Latin American), French, Italian, Portuguese (incl Brazilian), German, Japanese, Chinese (Mandarin & Cantonese), Russian, Korean, Hindi, Turkish, Arabic, Ukrainian, Polish, Hebrew, Swedish, Bulgarian, Vietnamese, Hungarian, Bengali, Dutch, Catalan, Farsi, Greek, Urdu, Welsh, Romanian, Norwegian, Czech, Slovakian, Estonian, Danish, Finnish, Turkmen, Latvian, Lithuanian, Nepali, Yoruba, Filipino, Thai, Albanian, Croatian, Serbian, Ebo, Afrikaans, Tamazight, Tagalog, Creole, Malagasy, Mongolian, Tok Pisin and more... you get the idea! 🇷🇴🇬🇹🇨🇿🇳🇴🇩🇰🇫🇮🇨🇾🇺🇾🇪🇬🇧🇬🇦🇷🇰🇪🇱🇰🇲🇦🇹🇳🇩🇿🇸🇬🇲🇾 **SUSTAINABLE** 🌎🌳 Like you, we really care about our planet. We don't like single use paper name tags, stickers or wristbands as they can't be reused or recycled and can even damage your clothing ☹️ The Solution? ...Our personalised and completely reusable Languages in London badges! 🏆👍 So, please make sure you return your badge to us, before you leave the event. We'll sanitise it (anti bacterial & disinfectant cleaners) and use it again & again & again. Thanks for helping us do the right thing and keep our costs down🙏 **SAFE SPACE FOR EVERYONE** 👮‍♂️ We don't tolerate prejudice or harassment of any kind, at any time. Be polite and respectful to everyone else and they will reciprocate. Let's keep the space safe, welcoming for everyone and free of any political agendas. Please report any concerns to the Organiser immediately. Please look after your belongings, the venue is a public place. We may take photos or video at the event for future promotional use. Let us know if you'd rather not be included, we respect your choice 📸 **SPREAD THE WORD** 🗣️💬 If you enjoy our events, please tell your friends and colleagues and help us grow **your** community, thank you ♥️ Join our community - https://www.languages.london/ We're looking forward to welcoming you at Languages in London 😊👋 🇲🇰🇳🇵🇧🇩🇵🇭🇦🇪🇦🇱🇧🇪🇮🇪🇰🇿🇱🇦🇯🇴🇱🇹🇱🇻🇪🇪🇰🇭🇨🇱🇲🇳🇨🇺

After a wonderful pilot event at HAWKINS FORGE, we’re returning right away for another thought provoking evening 💭 This time we’ll be discussing **CHARITY** by way of three original thought experiments. Hawkins Forge embodies our values: warm, welcoming, convivial, and a home to deep thinkers. I can't wait for you to join us there. The pub has boardgames and cards for the after party, and they’ve also **kindly offered us a deal on their Arrowsmiths Darts experience**: 30 minutes free for anyone who buys a drink. Spaces are limited, so get your ticket early if you want to be there 😊 **THOUGHT EXPERIMENTS** \- announced on the day of the event **[WHATSAPP GROUP](https://chat.whatsapp.com/DapwAXpnOHO5DRYThobpe4)** \- stay in the loop **[INSTAGRAM](https://www.instagram.com/thoughtexperimentsinpubs/)** \- see what we look like \(including The People of TEiP project\) **[SUBSTACK](https://experimentsingroupwisdom.substack.com/)** \- sign up for the newsletter and more **The idea:** A chance to meet and talk meaningfully about thought provoking topics. **How we'll do it** (timings approximate): * 7:00pm - Arrive at Hawkins Forge. We'll be in the private dining room - ask at the bar if you can't find us. * Organise ourselves into small groups (3-4) * Have a look at the **thought experiments** (announced on the day of the event) * 7:15 - First rotation begins - Talk about the first thought experiment, but feel free to pursue tangents and anecdotes. * 7:35 - Optional reshuffle: swap groups, move on to the second thought experiment. * 8:00 - Optional reshuffle: swap groups, move on to the third thought experiment. * 8:25pm - Wrap up - hear about upcoming events, feedback/requests for future meetups. * 8:30 Meetup ‘ends’. But feel free to carry on conversations. Usually a lot of us stay until late :-) **Notes on the general atmosphere**: * The vibe is to let conversation flow rather than stick strictly to one topic. * While we'd like to talk about 'meaningful things', we also see the value in lighter topics, so don't worry about not being 'deep' enough! * Feel free to suggest ideas for future Thought Experiments in Pubs meetup groups, both in terms of structure and topics to discuss. **Where we'll meet**: This group will be at Hawkins Forge, 5 minutes walk from Clapham Junction. We'll be in the private dining room - ask at the bar if you can't find us. **Who should come**: Everyone! We believe that the more perspectives, the richer the conversation. This group is not about being experts in Philosophy, it is about *doing* philosophy. That is, bringing our various life experiences and lenses on the world to group discussions about the human experience, the nature of reality... etc.... I'm so looking forward to meeting & talking with you in this beautiful location :-) If you would like to further support me & these meetups, you can do so here: [https://buymeacoffee.com/bonnyastor](https://buymeacoffee.com/bonnyastor) Thank you!

This month we have a visiting speaker from think-cell, Sebastian Theophil, who will talk to us about error handling in C++26 (with sprinkles of C++23). We also have space for a shorter talk, or lightning talks. If you would like to speak - even for just five minutes, please drop something into cppldn.uk/speak. **think-cell** will also be supporting the group by providing pizza and drinks - thanks **think-cell**! Thanks, also, to **Maven Securities** for hosting us again, this month. **As usual we'll need your full name for the door list, so we'll be asking for this on registration** (as this may be different to your username). This data will only be used for the door list/ registration and not published anywhere or used for other purposes. If you'd like to speak at a future event please get in touch at [cppldn.uk/speak](http://cppldn.uk/speak). **Here's the approximate schedule:** **18:30** *Doors open* **19:00** "Intro and news" - *Phil Nash* **19:10** *"compile_assert - Compile time C++ assertions" - Jonathan Grant* I present compile_assert(expression, message), a new C++ keyword proposal for enforcing assertions at compile time within ordinary (non-constexpr) functions. compile_assert provides advanced asserts at compile time, not runtime. Used for bounds checking, parameter validation and data validation at compile time. All three major compilers (GCC, Clang, MSVC) are supported with a sample implementation. The example implementation does this by using GCC’s attribute error which works with Clang. **19:25** "Compile-Time Data Layout Transformation with C++26 Reflection" - *Arturs Kalnins* We’ll use C++26 static reflection and injection to convert an AoS into a SoA at compile time, live on the latest GCC, with zero macros and zero boilerplate. **19:40** *break* **20:00** "To Err is Human: Robust Error Handling in C++26" - *Sebastian Theophil* A walk through the new error handling features in C++26 — including \`std::expected\`, \`std::stacktrace\`, contracts, and more — and how they can help us write more robust, maintainable code. **21:00** *Conclusion, and moving on somewhere else* \-\-\- **About the speakers** *Sebastian* has been working at think-cell since it was founded in 2002. In the last few years, among many other things, he has ported think-cell to run on macOS. He also maintains the typescripten project, which lets programmers call JavaScript libraries from C++ code compiled to WebAssembly in a convenient and type-safe way. He enjoys leaving his desk from time to time to talk at international C++ conferences. *Jonathan* has been a Software Engineer since 2003, worked in the video games industry and also embedded space for a long time at Renesas in safety critical systems for the automotive sector in C and C++. He also develops bespoke machine learning software in C++. He has a BSc Computer Science and an MSc Software Engineering. *Arturs* is a C++ software engineer with a background in aerospace engineering, where he developed a strong foundation in mathematics and systems thinking. He builds reliable, high-performance systems across embedded software, networking, and distributed platforms, with a particular focus on modern C++ (23/26), Rust, and performance-critical design. He enjoys tackling complex engineering challenges, designing clean abstractions, and contributing to the standards and practices that help teams deliver robust systems effectively.

The 5Rhythms® is a simple movement meditation practice designed to release the dancer that lives in everybody, no matter what shape, size, age, limitation and experience. The 5Rhythms® are Flow, Staccato, Chaos, Lyrical and Stillness. They come together to create a Wave, a movement meditation practice. There are no steps to follow. Bring your friends, your heart, willingness to move and bottle of water. Cash / card / PayPall/ bank transfer at the door or pre register: info@5rhythmswithkat.com >  £20 regular / £22 abundance for those in position to support our community / £16 concession for unemployed www.5Rhythms.com (http://www.5rhythms.com/classes/BareSoulsRhythmsclass-136) we are on Facebook (https://www.facebook.com/groups/BareSouls.5Rhythsm.withKat/) http://photos4.meetupstatic.com/photos/event/c/d/d/600_437763293.jpeg

Improve your Mandarin and English while making new friends! Join [Manhattan Mandarin](ManhattanMandarin.co.uk) at the [Jackalope](https://jackalopelondon.com/) in Marylebone - appropriately situated above a Chinese restaurant, [Liu Xiao Mian](https://www.liu-xiaomian.com/). All levels welcome - these are **very casual** meetups where you're welcome to mingle until finding suitable language partners Pop down for noodles or stay outside in the lovely mews, but whatever you do, come ready to chat, make great new connections, and push your language learning forward 🤗🤗🤗 Feel free to bring anything you think will help facilitate language exchange! (games, flashcards) We often provide ice-breaker question sheets just in case you need some help 🤗🤗🤗 Let us know if you need some help mingling You're welcome to try our HSK Classes in Marylebone: [https://www.manhattanmandarin.co.uk/hskclasses](https://www.manhattanmandarin.co.uk/hskclasses) or our Saturday online HSK classes: [https://www.manhattanmandarin.co.uk/onlineclasses](https://www.manhattanmandarin.co.uk/onlineclasses) For more information please contact Harry@ManhattanMandarin.com, 07767260207) Since 2012, with a fantastic team of over 200 native and non-native Mandarin teachers in the US and UK, [Manhattan Mandarin](ManhattanMandarin.com) knows what makes for fun and engaging communication between English and Chinese speakers!

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: Type Annotations with John Cassidy We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

**New Dojo Location!** **Draft Day Columbus** 1130 Dublin Road Columbus, OH 43215 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for topic suggestions and people interested in presenting at our monthly meetings. To this end we've set up a survey form at [https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc](https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc)

Window functions have nothing to do with the Windows operating system but provide a “window” to a result set when used in SQL queries. They are powerful, set-based methods to view data in unexpected ways. Window functions provide easy, set-based solutions to solve some common problems: * Using running totals * Performing operations in intervals * Identifying data gaps and islands * Performing aggregates without losing detail Many people are confused by window functions and do not know how to use them properly. This session will explore window functions, how they work, and how to use them. Demonstrations with several examples will solidify how window functions can simplify queries and make them more powerful.

**Opening Talk:** Luisa will demo a sassy AI-powered plant built in FastAPI using GPT-4o to explore personality, dialogue design, and human-AI interaction. **Main Talk:** What about using certain CLIs puts a smile on your face and gets you telling all your friends and colleagues about it? The Unix philosophy emphasizes simplicity, modularity, and the idea that programs should do one thing well and work together. However, CLI programs are primarily used by humans. Programs that you actually enjoy using can achieve both of these aims of composability and human-centeredness. This talk explores what makes CLIs great: fast, trusted, and delightful. Through real-world examples from modern tools like uv, cargo, ripgrep, and GitHub CLI, you'll learn the design patterns that separate good CLIs from great ones. Whether you're building package managers, creating developer tools, or just curious why modern CLIs feel so much better, you'll leave with a practical checklist of techniques to apply to any CLI tool you build. **Agenda:** 7:00pm - Opening announcements 7:10pm - Opening Topic - Build an AI-powered, Sassy Speaking Plant 7:25pm - Main Topic - --help: Designing Delightful CLIs 7:50pm - Q&A

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/

Topic details coming soon. AGENDA: 7:00pm - Opening announcements 7:10pm - Main Topic 7:50pm - Q&A

Meeting @ Improving's office in Downtown Columbus, near Cosi. Parking is paid, food & drink are free! This time we're hanging out after the long winter break. We are going to look at a group-member's project used to help learn the fundamentals of Go, and if time allows, we can take a look at how we like to build Go projects using AI.