--- title: "Online Coding and Python Classes in Yarra Ranges, Melbourne" description: "Live online coding and Python classes for children, teens and adults across the Yarra Ranges, from Lilydale to the Dandenongs, in small groups or one to one." canonical: https://learn.modernagecoders.com/online-coding-and-python-classes-in-yarra-ranges-melbourne source: src/pages/online-coding-and-python-classes-in-yarra-ranges-melbourne.html --- > Live online coding and Python classes for children, teens and adults across the Yarra Ranges, from Lilydale to the Dandenongs, in small groups or one to one. Skip to contentCourse picks for the Yarra Ranges ## Courses that take data in and out safely The JSON project needs dictionaries, files and a careful eye for types. These courses build them; the free trial lesson sets the starting level. [![Python for Teens course thumbnail](/images/python-teens.webp)Ages 13 to 17Python for TeensCore Python, including dictionaries, files and the json module.See the syllabus](/courses/python-complete-masterclass-teens)[![Python Masterclass course thumbnail](/images/python-college.webp)University and adultPython MasterclassFrom first scripts to well-structured programs that store and share data.See the syllabus](/courses/python-programming-masterclass-zero-to-advanced-college)[![Python Web Development with Django and Flask Course course thumbnail](/images/python-web-django-college.webp)Secondary and adultPython Web Development with Django and Flask CourseWeb apps that send and receive JSON every day.See the syllabus](/courses/python-web-development-django-flask-course)[![Python and AI for Kids course thumbnail](/images/python-kids.webp)Ages 8 to 12Python and AI for KidsFriendly first Python, with saving and loading small game files.See the syllabus](/courses/python-ai-kids-masterclass) Browse the [course atlas](/course-atlas) for more than one hundred options and use the [coding roadmap](/coding-roadmap) to check prerequisites. The four we are known for ### Python, AI, vibe coding and agentic coding These run underneath everything above. Every one is live and online, placed by ability rather than by age, and the first class is free. [![Vibe Coding for Teens course thumbnail](/images/vibe-coding-teens.webp)Vibe codingAges 13 to 17Vibe Coding for TeensPython, web and AI projects where the learner still owns the thinking.See the syllabus](/courses/vibe-coding-for-teens-python-web-ai-projects-course)[![Python Automation Course course thumbnail](/images/python-college.webp)Python and AICollege and adultPython Automation CourseAutomate the work you already do, then let AI carry part of it.See the syllabus](/courses/python-ai-automation-masterclass-college)[![AI and Machine Learning for Teens course thumbnail](/images/ai-ml-teens.webp)AI and MLAges 14 to 18AI and Machine Learning for TeensTrain a model, read what it learned, and be able to say why it is wrong.See the syllabus](/courses/ai-ml-masterclass-teens)[![Codex & Claude Code course thumbnail](/images/codex-claude-code-adults.webp)Agentic codingProfessionalsCodex & Claude CodeRun AI coding agents on real work without losing control of the codebase.See the syllabus](/courses/codex-and-claude-code-ai-coding-agents-masterclass-for-adults-professionals)The Yarra Ranges in the Census ## Houses, hills and long drives to work Headline 2021 Census QuickStats for the Shire of Yarra Ranges (ABS code LGA27450), with Victoria for comparison. | What was counted | Yarra Ranges | | --- | --- | | Residents | 156,068 | | Median age | 40 | | Families | 43,981 | | Private dwellings | 61,491 | | People per household | 2.7 | | Measure | Shire | Victorian total | | --- | --- | --- | | Separate houses | 93.7% (52,325) | 73.4% | | Workers who drove to work | 55.3% (44,209) | 49.9% | | Workers who took the train to work | 0.7% (559) | 1.6% | | Adults with a bachelor degree or higher | 21.4% (27,208) | 29.2% | | Workers employed as professionals | 19.6% (15,672) | 25.0% | ### Children and teenagers The Census counted 9,765 residents aged 5 to 9 and 9,963 aged 10 to 14. ### Home on Census day Under the August 2021 lockdown, 22.5% of employed residents, 17,963 people, worked from home. ### A very large shire The ABS boundary covers about 2,468 square kilometres, far more than any inner Melbourne council. The bureau adds small random changes to Census cells for privacy, so we show every number as published and never add published numbers together. Signature project ## What changes when a dictionary goes through JSON? We built a dictionary of FY18-19 to FY24-25 entries for Belgrave, Tecoma, Upwey, Lilydale and Mooroolbark, keyed by station and then by year as a whole number (2019 to 2025, our label for each financial year). That is 35 cells. Then we saved it with json.dumps and read it back with json.loads. | What we saved | What came back | Effect | | --- | --- | --- | | Year keys as integers | Year keys as strings | All 35 lookups such as data['Lilydale'][2025] fail | | A ratio as a float | The same float | Exact match, no change | | A ratio of NaN | The text NaN | Python reads it, but strict JSON readers reject it | | The whole table | 616 characters | Small enough to read by eye | | Python value | Error message | | --- | --- | | A set of station names | Object of type set is not JSON serializable | | A tuple used as a key | keys must be str, int, float, bool or None, not tuple | | A date | Object of type date is not JSON serializable | ### JSON keys are text The format only allows string keys, so Python quietly turns 2025 into "2025" when saving and does not turn it back. ### Loud failures help Sets, tuples and dates fail immediately, which is good: the programmer must choose how to store them. ### Convert on the way in After loading, rebuild integer keys deliberately, or store years as values in a list of records instead of as keys. ### The numbers inside the file Lilydale recorded 701,900 entries in FY18-19 and 512,300 in FY24-25; Mooroolbark went from 722,150 to 569,250, 78.8% of the earlier figure; little Tecoma from 75,650 to 47,250. Those figures survive JSON perfectly. Only the shape of the dictionary around them changes, which is why the bug is easy to miss. Entry figures are the Department of Transport and Planning's, rounded to 50. Labelling FY24-25 as 2025 is our convention. The round trip, the failed lookups and the error messages are our own measurement, using Python's standard json module. Python habits ## Saving data so it comes back the same Files and APIs carry JSON everywhere. These habits keep a program's data intact on the way out and back in. | Habit | In code | In the station project | | --- | --- | --- | | Round-trip test | Assert loads(dumps(x)) == x | Fails at once on the integer keys | | Prefer records | A list of small dictionaries | {"station": "Upwey", "year": 2025, "entries": 97850} | | Convert explicitly | int(key) after loading | Year keys rebuilt in one line | | Avoid NaN in files | Use null for missing | allow_nan=False makes Python refuse it | ### Primary learners Save a Scratch-style game score to a file, reload it and check it is still a number. ### Secondary learners Run the round trip, find every failing lookup and fix the structure. ### Adults Write round-trip tests for the JSON files that work scripts already produce. Upwey shows why the structure matters: 157,050 entries in FY18-19 and 97,850 in FY24-25, 62.3% of the earlier figure. A dashboard that silently fails to find 2025 would show nothing at all for that change. Around the Yarra Ranges ## Rail ends and seventy-eight schools Background from rail entry statistics, the state register of schools and the 2027 school calendar. ### Stations at line ends Our boundary check places Belgrave, Tecoma and Upwey on one line and Lilydale and Mooroolbark on another; no other metropolitan station falls inside the boundary. ### Seventy-eight schools The 2025 list gives 78 schools a Yarra Ranges address: 56 primary, 10 secondary, 8 combined and 4 special. Healesville High School, Upwey High School and Lilydale Heights College are government secondaries. ### Term 1, 2027 From the hills to the valley, government students return for Term 1 of 2027 on Thursday 28 January and leave for holidays on Thursday 25 March. Shire-wide figures The Census numbers on this page cover the whole Shire of Yarra Ranges, including the hills, the valley towns and the suburbs near Lilydale; individual towns have their own QuickStats. Learning ladder ## From saving a score to sharing data Bands overlap; the free trial decides the real starting point. Ages 6 to 10 ### Scratch projects Games with lists and saved high scores, built step by step. [Scratch Coding for Kids](/courses/scratch-programming-complete-course)[Coding for Kids](/courses/kids-coding-blocks-masterclass)Ages 10 to 14 ### First Python Variables, lists, dictionaries and the first files. [Python and AI for Kids](/courses/python-ai-kids-masterclass)[Maths Through Coding](/courses/maths-through-coding)Ages 14 to 18 ### Python with data JSON, CSV and public datasets handled carefully. [Python for Teens](/courses/python-complete-masterclass-teens)[Data Science for Teens](/courses/data-science-course-for-teens-python-data)University and adult ### Programs that share data Web apps, APIs and scripts that exchange JSON reliably. [Python Masterclass](/courses/python-programming-masterclass-zero-to-advanced-college)[Python Web Development with Django and Flask Course](/courses/python-web-development-django-flask-course)Coding and AI ## AI tools write JSON code easily. Why learn it yourself in the Yarra Ranges? Because AI-written code usually saves the data correctly and then reads it back with the wrong key type, and nothing complains until a lookup returns nothing. Ask an assistant to "cache the station data in a JSON file" and you will get a neat json.dump and json.load. The program runs. Later, data['Upwey'][2025] raises a KeyError, or worse, a .get with a default hides it and a chart shows zero. Spotting why requires knowing that JSON keys are always text. Learners who have seen all 35 lookups fail add a round-trip test to anything that touches a file. That small habit catches the same mistake in AI-generated code before it reaches anyone else. The Yarra Ranges learner who tests the round trip is the one whose saved data can be trusted. The longer argument is in [why teenagers should still learn to code in 2026](/blog/is-coding-worth-learning-2026). Delivery ## No drive needed, from the hills to the valley Lessons happen on screen, so a learner in Warburton joins the same way as one in Mooroolbark. ### Coding together live Teacher and learner edit the same file and run it together. ### Victorian terms Plans follow state school terms and stop for the holidays. ### A full first lesson The free trial teaches real content and ends with a recommendation. ### Groups of fifteen to twenty Learners matched by level and pace, sometimes from other states. ### Two lessons each week Fixed times, around eight lessons a month, with breaks planned. ### Teachers in India A 5pm Yarra Ranges lesson in daylight saving starts at 11:30am India time, and at 12:30pm there after April. Daylight saving Melbourne clocks go forward on Sunday 4 October 2026 and back on Sunday 4 April 2027; India keeps one time all year. Lesson times are set in Melbourne time. Fees ## Yarra Ranges class fees Three simple prices. First class**USD 0** The first lesson is free and closes with an honest recommendation. Group tuition**USD 100** A month of group lessons, usually eight, with fifteen to twenty learners at a matched level. Private tuition**USD 150** About eight lessons a month with one teacher. Payments from outside India are made in US dollars. Nothing is billed before the trial lesson, and only after a course and a weekly slot are chosen; for school holidays, missed lessons or a change of format, see the pricing page. Request placement[Check availability](https://wa.me/919123366161?text=Hello%20Modern%20Age%20Coders%2C%20I%20would%20like%20a%20free%20Python%20or%20coding%20class%20for%20a%20learner%20in%20the%20Yarra%20Ranges.)Reviews ## Google reviews from families and learners Rated 4.9 across 547 Google reviews. These are real reviews, reproduced as written. ★★★★★ "The one step solution for my son. Modern Age Coders make learning coding so simple that kids love it. The teachers explain complex concepts clearly with practical exercises and interactive content." Ria Mukherjee Parent ★★★★★ "Modern Age Coders has been a game-changer for me. I struggled to grasp IT concepts and coding before joining, but their classes transformed everything. I can now confidently write complex programs with ease." Samriddha Mondal Student ★★★★★ "One of the most wonderful education centres out there. Education is not limited to school syllabus but focuses on skill development." Vansh Agarwal Student ★★★★★ "My child Dhairya is really enjoying the Modern Age Coders classes. This is his first online class and he eagerly looks forward to it. I can already see his improvement, and the teachers are very cooperative." Sonam Oswal Parent of Dhairya ★★★★★ "Modern Age Coders have wonderful teachers who teach in a clear, easy and practical way. The teacher boosts students' confidence and inspires them to learn without hesitation." Sonu Goyal Parent ★★★★★ "I highly recommend this computer coding class! The teachers are incredibly knowledgeable and passionate about coding." Ritu Kedia Parent Free placement class ## Book a first Yarra Ranges lesson Give us the age of the learner and a favourite subject or pastime. Older learners commonly begin by writing the station table to a JSON file and loading it again; younger ones often start with a Scratch game that remembers its top score. ### Want a class sooner? Book a priority demo A priority demo is a full class of about 45 to 60 minutes. After the class the mentor sends a written skill report and a personal learning roadmap on WhatsApp. If you enrol, the demo fee is adjusted against your first month's fee. Share your demo Order ID with us on WhatsApp and we take it off. [Book a priority demo](/book-demo) ### Contact the team directly WhatsApp or call [+91 91233 66161](tel:+919123366161), or email [connect@modernagecoders.com](mailto:connect@modernagecoders.com). This is Modern Age Coders' actual contact, an Indian number, and not an invented Yarra Ranges one. [WhatsApp Modern Age Coders](https://wa.me/919123366161?text=Hello%20Modern%20Age%20Coders%2C%20I%20would%20like%20a%20free%20Python%20or%20coding%20class%20for%20a%20learner%20in%20the%20Yarra%20Ranges.) Submitted details are used for placement and follow-up. FAQ ## Yarra Ranges Python and coding questions Questions families and adults in the Yarra Ranges often ask. ### What is the population of the Yarra Ranges? The 2021 Census QuickStats record 156,068 residents in the Shire of Yarra Ranges, with a median age of 40 and 43,981 families. ### What is JSON? JSON is a plain-text format for storing and sending data, used by files, websites and APIs. It has strings, numbers, true, false, null, lists and objects with text keys. ### Why do integer keys change after json.loads? JSON only allows text keys, so Python writes the integer 2025 as "2025". When the file is loaded, the key stays a string, and lookups using the integer fail. ### What did the Yarra Ranges JSON project show? After saving 35 station-year figures and reading them back, all 35 integer year lookups failed. Sets, tuple keys and dates refused to save, and NaN saved as text that strict JSON readers reject. ### When should children start Python? Most start with Scratch from six and move to Python around nine to twelve, depending on reading and typing. ### Are Copilot Studio agents taught in group classes? No. Copilot Studio lessons are private only; group learners in the Yarra Ranges code their agents in Python. ### Is there a classroom in the Yarra Ranges? No. Every lesson is live online, we have no premises in Australia, and the phone number we list is Indian. ### How much do classes cost in the Yarra Ranges? The first lesson is free. Group lessons then cost USD 100 a month for two live lessons a week, about eight a month, with fifteen to twenty learners, or USD 150 a month one to one. Course, format and time are agreed before any payment. ### How big are the groups? Fifteen to twenty learners, matched by level, pace and goal. When no group suits the learner's schedule, one-to-one lessons are offered. ### What internet connection is needed? A steady home connection that handles a video call is enough; the code runs in a browser or on the learner's own computer. Explore Melbourne and Victoria ## More for Yarra Ranges learners Closer to the city, [Box Hill](/vibe-coding-and-ai-agents-classes-in-box-hill-melbourne) and [Doncaster](/online-coding-and-python-classes-in-doncaster-melbourne) have their own pages. Hills families can also browse [all of Melbourne](/vibe-coding-and-ai-agents-classes-in-melbourne) or [Victoria as a whole](/coding-and-ai-classes-in-victoria). Book the free class[Book a priority demo](/book-demo)[Message us on WhatsApp](https://wa.me/919123366161?text=Hello%20Modern%20Age%20Coders%2C%20I%20would%20like%20a%20free%20Python%20or%20coding%20class%20for%20a%20learner%20in%20the%20Yarra%20Ranges.)Free class[Priority demo](/book-demo)[Call us](tel:+919123366161) ## Keep exploring Modern Age Coders ### Related courses and guides - [PCEP Certification Preparation](/pcep-python-certification-prep) - [Online Coding and Python Classes in Wigston](/online-coding-and-python-classes-in-wigston-leicester) - [Python Certification Course](/python-certification-pcep-pcap-course) - [Online Coding and Python Classes in Wigan](/online-coding-and-python-classes-in-wigan) - [Python Classes in the Netherlands](/python-classes-netherlands) - [Online Coding and Python Classes in Whyalla](/online-coding-and-python-classes-in-whyalla) - [Online Coding and Python Classes in Havant](/online-coding-and-python-classes-in-havant) - [Online Coding and Python Classes in Hatfield](/online-coding-and-python-classes-in-hatfield) - [Online Coding and Python Classes in Hastings](/online-coding-and-python-classes-in-hastings) ### Learn more - [Vibe Coding and AI Agents Classes in Glen Eira, Melbourne](/vibe-coding-and-ai-agents-classes-in-glen-eira-melbourne) - [Vibe Coding and AI Agents Classes in Clarence, Hobart](/vibe-coding-and-ai-agents-classes-in-clarence-hobart) - [Python to AI Roadmap for Students in Oman](/python-to-ai-roadmap-for-students-oman) - [Python Classes in Saudi Arabia](/python-classes-in-saudi-arabia) ### Free resources - [Python Tutorial for Beginners: Complete Guide](/resources/python) - [Loops in Python (for and while)](/resources/python/loops-in-python) - [Pattern Printing in Python](/resources/python/pattern-printing) - [Taking Input and Type Conversion](/resources/python/taking-input-and-type-conversion) ### From the blog - [Python Tutorials & Guides](/blog/topic/python) - [File Types in Python: A Complete Beginner's Guide to Working](/blog/file-types-in-python-complete-guide) - [How to Find HCF and LCM in Python (5 Easy Methods)](/blog/how-to-find-hcf-and-lcm-in-python) - [PCEP vs PCAP: Which Python Certification Is Worth It?](/blog/pcep-vs-pcap-which-python-certification) ### Start here - [Modern Age Coders pricing, one honest price per plan](/pricing) - [How Modern Age Coders teaches, small batches and real projects](/how-we-teach) --- *Canonical: https://learn.modernagecoders.com/online-coding-and-python-classes-in-yarra-ranges-melbourne*