Librarians

**PyBerlin: February's event** **Sponsor**: **Sentry** **Location: W3.Hub (ground floor)** **Agenda:** 6:30 pm – Doors open: snacks, drinks, networking 6:55 pm - Welcome from PyBerlin 7:00 pm - Welcome from the sponsor - Sentry 7:10 pm – **Maximum time off, minimum leave: solving the holiday equation with Python and math // Sander Van Aken** Around the beginning of the year, German news sources publish tips on how to optimize your vacation by cleverly using Brückentage: taking a few strategic days of leave to connect weekends and public holidays into long breaks. But how can this be computed systematically? And how can it be tailored to your personal preferences? Operations Research (OR) and mathematical optimization are powerful but often underrepresented disciplines within the broader AI and analytics landscape. In this beginner-friendly talk, we treat holiday planning as a mathematical optimization problem. Using the question “How do I maximize my benefit from taking time off?”, we will walk through the full process from problem formulation to a working Python solution. Speaker's bio: Sander Van Aken is Operations Research Engineer and passionate about applying quantitative methods to solve mobility, logistics and supply chain planning challenges. Beyond his day-to-day job of developing decision support algorithms for network planning at Flix SE, he is active in the broader OR community and loves introducing people to the field. 7:40 pm - break 8:00 pm – **Exception Handling Within the Context of Python's Typing System // Jonathan Herrera** A conceptual approach to exception handling, with a special focus on Python's type hinting system. Python's typing system does not allow for annotating methods with the exceptions they raise. The talk discusses the conceptual consequences of this limitation and introduces different exception handling paradigms with their upsides and downsides. Speaker's bio: Jonathan has worked as a Senior Python Developer in different companies. Currently, he is an Engineering Manager at RoomPriceGenie, a scale-up providing revenue management solutions to hotels, where he oversees the integrations team, and works, amongst other things, on establishing best practices with regard to reliability and security. 8:30 pm – **One does not simply send a GET request // Paweł Wiszniewski** Short presentation on a few of the less-known features of the requests and urllib3 libraries. Regardless of whether you're scraping the web or extracting data from those REST API endpoints, you need a reliable and convenient way to download data from the internet. But packages get lost in the traffic, servers get overwhelmed with requests. And your job is to build a resilient data pipeline. Let's see what the most popular HTTP libraries have to offer. Speaker's bio: Paweł is a Senior Data Engineer and a founding member of the Data Platform team at Flink SE, where he builds tools and designs processes that empower data scientists, analysts, and business teams across the company. 9:10 pm - closing This event will be only in-person. Please check our Code of Conduct and official health regulation in Berlin before coming. If you feel some signs of sickness, please consider skipping this event and attending another time. We will have plenty of events in different formats in the future. Looking forward seeing you all!

Let's support each-other, upbuild faith, and find some like-minded friends in our community. (If you are a new believer, you are also welcome only if you have been practicing Christianity regularly for at least since last 3 years. )

Wissen verändert die Welt. Mach Mit! Wir treffen uns alle zwei Wochen zum lockeren Austausch und gemeinsamen Arbeiten. Interessierte Frauen\* sind herzlich eingeladen, uns zu besuchen und mehr über das Schreiben und die Regeln in Wikipedia herauszufinden. Erfahre bei unserer Veranstaltung, wie Wikipedia und ihre Schwesterprojekte funktionieren, lerne wie du selbst mitschreiben kannst und finde heraus, welche Artikel zu deinen Lieblingsthemen noch fehlen. Oder vielleicht interessierst Du Dich für Fotografie und würdest gerne mehr über die Commons-Lizenzen und die Mitarbeit an der Bilddatenbank Wikimedia Commons erfahren? Auch dann bist Du herzlich Willkommen! 🕖 Termine: jeden 1. und 3. Mittwoch des Monats ab 19 Uhr ℹ️ Aktuelle Termine: [https://w.wiki/tv](https://w.wiki/tv) Mehr Informationen: [WomenEdit-Seite](https://de.wikipedia.org/wiki/Wikipedia:WomenEdit/Treffen_(Berlin)) Die Teilnahme ist kostenfrei. Schreib uns eine PM, falls Du Rückfragen hast. Leihrechner können vor Ort zur Verfügung gestellt werden. P. S.: Wir bewerben das Event nicht nur hier, also nicht wundern, wenn die Teilnahmezahlen niedrig sind. Wir sind in der Regel 6-10 Frauen.

If you’re craving more meaning, aliveness, and alignment with what truly matters to you in your work - this evening is for you. ​An intimate dinner evening for people working inside organizations, who don’t just want to function at work but care deeply about shaping things from within. ​This is not a workshop or a networking event. It’s an opportunity to pause, reflect together, and have the conversations that often get postponed in everyday work. ​It’s not about having all the answers. It’s about creating room for clarity, perspective, and one meaningful next step. ​Join us around the table. *Seats are limited to ensure meaningful conversations* 💛 *** **​​This evening is for you, if…** * ​​you desire a deeper sense of meaning and ownership in your everyday work * ​​you miss having inspiring conversations with like-minded people around work * ​​you’re curious how to navigate impact driven projects from within organizations ​We’re looking forward to welcoming you at the table, ​Marielen & Livia *** ​​📍 Berlin, Kreuzberg ​🍝 €11.50 (covers dinner & drinks) ​🦓 10-15 people ​Delicious food. Thoughtful questions. Honest exchange. No rush. *** ​**Why this evening exists** ​Over the last months, we kept meeting amazing people who work inside of organisation (often in a corporate context), who feel stretched by their work - yet still care deeply about contributing to positive change somehow. ​They bring so much care & potential and yet I’ve noticed how often meaningful initiatives never quite take shape, simply because there’s little space or energy to move them forward. ​That’s why we’re experimenting with a small, thoughtful format to create exactly that. ​For now, this takes a very simple form: we’re setting a table and bringing a small group together over dinner. It felt like the most human way to invite reflection, honest conversation, and a sense of hope and possibility. Especially at a time when change within systems can easily feel overwhelming. ​So if someone comes to mind while reading this - a friend, colleague, or collaborator who’s trying to create change from within their organization but might not quite know where to start or how to move forward - feel free to pass this on 💛

**What happens when artificial intelligence meets very human emotion?** This Wednesday, **Mercury Toastmasters Berlin** explores that question inside the *Historic Imperial Breakfast Hall at **Das Center, Potsdamer Platz.*** *In a world shaped by algorithms, one skill becomes more powerful, the ability to speak with clarity, empathy, and presence.* *Experience the **power of prepared speeches** loaded with bold ideas, participate in our **dynamic Impromptu Session**, and **gain valuable insights** during our feedback segment.* Leave with practical tools, fresh ideas, and renewed inspiration. Whether you want to speak up at work, boost your presence, or just meet inspiring people, you’ll feel at home at Mercury Toastmasters Berlin. *** **[What to Expect:](https://mercurytoastmasters.de/find-toastmasters-meetings-in-berlin/)** ✨ A supportive space to speak, grow, and connect 🎤 Engaging prepared speeches ⚡ Fun, fast-paced impromptu speaking challenges 💬 Feedback session you can actually use 🌍 A friendly, international crowd (around 25–30 people) **Schedule** (times may vary) ⏰ 19:15 - Doors open & networking 🎙️ 19:30 - Prepared Speeches 🏓 20:35 - Impromptu Session (Guest welcome to join) ↩️ 21:00 - Constructive feedback 💬 21:30 - Food, drinks & relaxed socializing **No experience needed.** ***Come curious. Leave energized.*** *** **🤙 [Hear it from our members:](https://maps.app.goo.gl/eRtvR9DRNqU9WZQn7)** *“You can sharpen your public speaking skills and gain tons of confidence, while having fun and making new friends. Mercury is well-structured, fun, and affordable.”* — *Therese Pitt* *“Mercury gave me a safe place to speak, create, and grow. I love the multicultural vibe and supportive community. It’s the best place to learn and have fun.”* — *Krisztina Linka* *** **[Did You Know?](https://mercurytoastmasters.de/about-mercury-toastmasters-berlin/)** Toastmasters is where people go to get better at speaking—and grow into confident communicators and leaders. Today [Toastmasters ](https://mercurytoastmasters.de/about-mercury-toastmasters-berlin/)has 350,000+ members across 16,000 clubs in 143 countries. And [Mercury](https://mercurytoastmasters.de/find-toastmasters-meetings-in-berlin/) is one of the best places to experience it. So bring your curiosity, your energy—and just be yourself. Whether you’re just starting or ready to level up, there’s a place for you here. *** **[Wondering what you get as a member?](https://mercurytoastmasters.de/membership-mercury-toastmasters-berlin/)** Think expert feedback, real-world speaking practice, and a supportive crew that’s got your back. [See you Wednesday night! 🎉](https://mercurytoastmasters.de/find-toastmasters-meetings-in-berlin/)

**GDG Berlin × Cloudflare** 📍 **Ojin AIxHaus — Powered by Journee** Chausseestraße 36, 10115 Berlin 🗓 **Date:** *Wednesday 18 Feb* ⏰ **Time:** 18:00 – 21:30 (GMT+1) 🚨 **Important** Registration will be handled via **Luma** 👉 **Registration link:** [https://luma.com/x0iqonf2](https://luma.com/x0iqonf2) 🌍 About this event Join us for a **Berlin AI Builders Meetup**, organized by **GDG Berlin** and **sponsored by Cloudflare**. This evening meetup brings together engineers, builders, founders, and AI practitioners for practical, real-world discussions at the intersection of **AI, infrastructure, and modern software systems**. Whether you’re building AI-powered products, scaling platforms, or exploring how AI fits into real production workflows, expect insightful talks, open conversations, and strong community energy. 📍 Venue Hosted at **Ojin AIxHaus — Powered by Journee** Berlin’s home for builders, creators, and AI practitioners. 🗓 Agenda **18:00 – Doors Open** Grab a drink, meet fellow builders, and get settled. **18:30 – Talk 1 (TBA)** *Topic to be announced* 🍕☕ **Break — 15 min** 19:10 – 19:25 **19:25 – Talk 2 (TBA)** *Topic to be announced* 🍕☕ **Break — 15 min** 20:05 – 20:20 **20:20 – Talk 3 (TBA)** *Topic to be announced* 🕺 **Networking from 21:00 until 21:30** 💃 Connect with speakers, organizers, and fellow AI & cloud enthusiasts. 🍕🍻 Food & Drinks Food and drinks will be provided thanks to **Cloudflare’s support**. 🙏 Thanks & Credits A big thank you to **Ojin AIxHaus** for hosting this event and to **Cloudflare** for sponsoring and supporting the Berlin developer community. Ojin AIxHaus is powered by **Journee — The Human AI Company**, a collaborative community space in Berlin Mitte where scientists, machine learning engineers, founders, creators, and AI enthusiasts come together to build the future of AI. Ojin AIxHaus is free to join and is currently curating its 2026 events calendar. Have an idea for a meetup, workshop, or hackathon? Bring your fire — they bring the space 🔥 👉 [https://ojin.ai/community](https://ojin.ai/community) **Google Cloud Credits** We’re planning to offer **Google Cloud credits** to attendees so you can explore and experiment on GCP after the event. Activation details and instructions will be shared on-site. And a huge thanks to everyone in the community who helps make these events possible 💙

Come along, grab a coffee, shut up, and write! We will do at least two sessions of each 45 minutes of writing and two breaks. We will start the first writing session at 10:15. For space reasons, we are limited to a certain number of attendees, so please update your RSVP if you can't come. We are typically by the large windows facing the U-Bahn entrance. If you are new, come and say hello, as we know that suddenly going quiet for 45 minutes and staring at that blank page can be intimidating when it's your first time. We have a lot of long-term regulars who will be happy to help you feel welcome. In between sessions, we have a Telegram chat: https://t.me/joinchat/ERW3pxD5kfELGeWs9SUhjw For more information, visit [https://shutupwrite.com](https://shutupwrite.com/).

RSVP on Luma: https://luma.com/66zp1utm Silent Reading / Creating Club is a gathering for people who enjoy focusing together in public. Bring a book, a notebook, a sketchpad, knitting needles — whatever you’d like to spend a quiet hour with. All projects and all participants are welcome. ​This year is about creating more — quietly, consistently, imperfectly — and shaping environments that support that. If you’re building something of your own, you’re especially welcome here. ​We’re building a community of readers and creators who value depth, presence, and shared silence. The magic isn’t just in the quiet hour — it’s in the people who return and make it feel like a familiar room. ​(Please RSVP “yes” only if you can make it, so we can save a seat for you and others on the waitlist.) ​This quiet ritual unfolds at **W66 Café**. ​There’s no entrance fee, but please order at least one item from the café and don’t bring outside drinks 🙂 ​No assignments. No pressure. No productivity race. Just a shared hour of intentional silence, followed by relaxed conversation. 🕰 Our Agenda ​**10:30 – 11:00** Arrivals, ordering drinks/food, light social time ​**11:00 – 12:00** The Great Quiet Hour (Read. Write. Sketch. Code. Think. Sit.) ​**12:00 – 12:30** Optional socializing — share what you were reading or creating, or simply continue in quiet focus. ## **​🏡 House Guidelines** ​To keep this space calm and welcoming for everyone: ​• Silence during the focus hour (no calls or conversations) • Phones on silent mode • If using a laptop, please avoid meetings or audio — headphones welcome • Arrive before 11:00 if possible to minimize disruptions

I have reserved the music room in Library where we can practice Classical music together. Come and bring some notes that you like to play together. I will bring some easy christmas songs and also some more complicated songs like Minute in G and Gavotte etc. I have one Violin and the Music room has one Piano.

\*\*\*\*\*\* ***For address and more details see the website.*** \*\*\*\*\*\* **Event Info:** Bring along your **current book to read** (or something **creative** to work on 📚🎨🧵) and join us for this mix of a shared focus time + discussion. \- 19:00\-19:30 \- Meet & greet \- 19:30\-20:30 \- Silent focus time \- 20:30 \- Discussion of books/ projects over coffee **Drinks & snacks are included** ☕️ * **To reserve your place, a ticket (€9,90/event) or a community pass (only €14,90/MONTH) [from the website](www.pausify.org) is required** * **Attendance here doesn’t show all sign-ups from other platforms.** ***FAQ: Why does it cost money if I bring my own project?*** Because we rent a beautiful, central space for every event. Ever thought your monthly apartment rent was too high? Well, multiply that – that’s what commercial spaces in big cities like Berlin cost *per hour*. Of course, if all you want is just some quiet time, your home or a library is perfect. But if you’d like to focus & connect with others in an inspiring space – with drinks, snacks included – that’s what your ticket helps to cover. See pics from our events below - and on our Instagram: **[@Pausify (Co-Reading Space)](https://www.instagram.com/pausify_org/) ☕️**📚 **[Pausify Co-Reading Space Website](www.pausify.org/)** For questions, please contact us over [Website](www.pausify.org/) as this platform can have issues. Thank you! *Please note that photos and videos may be taken during the event and used for promotional purposes to highlight and share the experiences at our events. If you have concerns, don't hesitate to approach the event organizers before the event.*

International Meetup for those who still like to follow the Peaceful teachings of Christ. We are free and curious humans, try to practice patience, kindness, humanity, etc, and have the freedom to read any book of the world, including the Gospels. Let's support each-other, upbuild faith, and find some like-minded friends in our community. (If you are a new believer, you are also welcome only if you have been practicing Christianity regularly for at least since last 3 years. )

Ciao a tutti! For our event we would like to meet you at 17:00 and have a beer all together, or other drinks. The goal of our first meeting is to get to know eachother and practice Italian and German. Please don’t be afraid that your language skills might not be sufficiently good or that you are a beginner. We understand that learning languages is a difficult and long journey. We don’t tolerate discrimination. We don't tolerate any aggressive or weird attitude. This has to be a Place of Comfort zone for everyone :) Please be respectful and kind with the others! PS: you can find us on the pool table area usually, if not just ask to the bar area for the reservation on the name "Claudio" A presto, bis bald Claudio Ich hoffe dass wir bald uns sehen!

We'll come together at a cosy cafe to discuss S. Marai's novel Embers. Before RSVPing yes, ask yourself- Do I have a copy of the book? Can I be there at that place and time? Looking forward to our discussion! :) Also if you would like to join our Whatsapp group to vote on books, please talk to Sneha at the meeting. :)

📆 Agenda * 19:00 Welcome to the PUB (Python Users Berlin) – setting up * 19:15 Main talk * 20:00 Lightning talks * 20:30 Social gathering 🎙 Main talk by [@esc](https://github.com/esc): Whirlwind tour of [Numba](https://github.com/numba/numba) In this talk I will take you on a whirlwind tour of Numba -- the Python just-in-time (JIT) compiler. I will equip you with with a mental model of how Numba works and what it is good at. At the end, you will be able to decide if Numba could be useful for you. 📚 Resources * https://github.com/esc/numba-talk ⚡️ Lightning talks Time will be open at the end of the night for lightning talks (short 5 minute presentations). Please bring your ideas and inspirations with.

Join us for our February Book Club gathering where we will come together to discuss *A Master of Djinn* by P. Djèlí Clark in a safe and welcoming environment. Make new friends who share your passion for books and connect with fellow LGBTQ book enthusiasts.

This meeting will be an open discussion about the book "an Immense World" by Ed Yong

Ciao a tutt\*! Let's meet Monday at 6.30pm at the **Grandview Heights Public Library** in **Conference Room A** to speak in Italian for 1 hour. \*note change in location\* Grandview Heights library (1685 W 1st Ave, Columbus, OH 43212) Keeping Monday for consistency but we can discuss if there are better days/times/locations!

Columbus libraries: [https://cml.bibliocommons.com/v2/record/S105C3262835](https://cml.bibliocommons.com/v2/record/S105C3262835) Location: [Knotty Pine Brewing](https://www.knottypinebrewing.net/) [Menu, scroll to the bottom](https://www.knottypinebrewing.net/menus-1) Book summary: Adunni is a fourteen-year-old Nigerian girl who knows what she wants: an education. This, her mother has told her, is the only way to get a "louding voice" -- the ability to speak for herself and decide her own future. But instead, Adunni's father sells her to be the third wife of a local man who is eager for her to bear him a son and heir. When Adunni runs away to the city, hoping to make a better life, she finds that the only other option before her is servitude to a wealthy family. As a yielding daughter, a subservient wife, and a powerless slave, Adunni is told, by words and deeds, that she is nothing. But while misfortunes might muffle her voice for a time, they cannot mute it. And when she realizes that she must stand up not only for herself, but for other girls, for the ones who came before her and were lost, and for the next girls, who will inevitably follow, she finds the resolve to speak, however she can--in a whisper, in song, in broken English--until she is heard

Please join the Columbus Atlassian Events Team for an evening program where we show you how we are using the Atlassian tools to track, manage and collaborate with others on our hobbies, From Jira & Confluence and Lego, to Tabletop gaming and Trello to miniature painting and Jira. Join the Columbus Atlassian leaders as they walk you through how the Atlassian tools enhance their passion projects.   We'll go over space structures, lessons learned as we built and tracked our project and how it helped us organize group adventures.   Looking forward to sharing our fun with you!Please take note of the New Location and Time of the event. Pay Parking can be found on street, and in locations marked. Agenda --- Speakers Kimberly Deal - Columbus Atlassian User Group Leader Greg Sprowls - Columbus Atlassian Community Leader Kevin Stanley - Columbus Atlassian User Group Leader Moderators Kimberly Deal - Columbus Atlassian User Group Leader Greg Sprowls - Columbus Atlassian Community Leader Kevin Stanley - Columbus Atlassian User Group Leader Hosted By Kimberly Deal, Atlassian User Group Leader Kevin Stanley, Chief Everything Greg Sprowls, Agility Lead --- Global Partner Atlassian (http://atlassian.com) Millions of users globally rely on Atlassian products every day for improving software development, project management, collaboration, and code quality. For over a decade, Atlassian customers have come together to network, share ideas, solve problems, and find new ways to use Atlassian products. Today, more than 15,000 people take part in Atlassian community events in more than 30 countries. --- Complete your event RSVP here: https://ace.atlassian.com/events/details/atlassian-columbus-presents-for-the-love-of-atlassian-using-atlassian-to-manage-your-passion-projects/.

**Our February novel is: Julia by Sandra Newman** **This month is a classic, dystopian, fiction, literary fiction, women’s fiction, and science fiction novel. The book is 394 pages in print and 14 hours and 20 minutes on audiobook.** **An imaginative, feminist, and brilliantly relevant-to-today retelling of Orwell’s 1984, from the point of view of Winston Smith’s lover, Julia, by critically acclaimed novelist Sandra Newman.** Julia Worthing is a mechanic, working in the Fiction Department at the Ministry of Truth. It’s 1984, and Britain (now called Airstrip One) has long been absorbed into the larger trans-Atlantic nation of Oceania. Oceania has been at war for as long as anyone can remember, and is ruled by an ultra-totalitarian Party, whose leader is a quasi-mythical figure called Big Brother. In short, everything about this world is as it is in Orwell’s 1984. All her life, Julia has known only Oceania, and, until she meets Winston Smith, she has never imagined anything else. She is an ideal citizen: cheerfully cynical, always ready with a bribe, piously repeating every political slogan while believing in nothing. She routinely breaks the rules, but also collaborates with the regime when necessary. Everyone likes Julia. Then one day she finds herself walking toward Winston Smith in a corridor and impulsively slips him a note, setting in motion the devastating, unforgettable events of the classic story. Julia takes us on a surprising journey through Orwell’s now-iconic dystopia, with twists that reveal unexpected sides not only to Julia, but to other familiar figures in the 1984 universe. This unique perspective lays bare our own world in haunting and provocative ways, just as the original did almost seventy-five years ago.