This repository contains all the source code shown in my mCoding programming videos on YouTube.

All code in this repository is licensed under the open source MIT license. You don't need to ask permission to use it, feel free! It's not required, but I'd appreciate if you would link my YouTube channel if you used my code!

mCoding YouTube channel

mCoding website

James and his team are available for consulting, contracting, code reviews, and interview prep services.

N	Code	Video
148	src	Watch out for this (async) generator cleanup pitfall in Python
147	src	Run a Large Language Model (LLM) at home on your GPU
146	src	Docker Tutorial for Beginners
145	src	Python itertools - The key to mastering iteration
144	src	All 71 built-in Python functions
143	src	Top 5 IDE Productivity Hacks That Will Save You Time Programming
142	src	What you need to know about Startup and Shutdown Events in FastAPI and ASGI Applications
141	src	Application classes vs. functions
140	src	Asynchronous Web Apps in Python
139	src	New Windows Command Escape Vulnerability - Critical CVE ... or is it?
138	src	Async for loops in Python
137	src	The ins and outs of context managers and try-finally in Python
136	src	Python Debugging (PyCharm + VS Code)
135	src	Modern Python logging
134	no src	Why Zero times Anything is Zero
133	src	You won't believe it! Import from the Cloud
132	src	Bloom Filters
131	no src	Actually, you CAN divide by zero.
130	src	Python 3.12 is HERE!
129	src	Lambda in a Loop is a Code Smell
128	src	A forbidden Python technique to put ANYTHING in a dict or set.
127	src	Don't make this big O mistake!
126	src	Why I prefer attrs over dataclasses
125	src	type(obj) vs. obj.class in Python, and changing an object's class.
124	src	Python's collections.abc | InvertibleDict
123	src	unique_ptr is NOT just for heap allocations | custom deleters
122	src	How to check if a file exists in Python
121	src	unique_ptr: C++'s simplest smart pointer
120	src	Does Python have a ternary operator?
119	src	21 MORE nooby Python habits
118	src	str vs bytes in Python
117	src	Intro to async Python | Writing a Web Crawler
116	src	Complex (Gaussian) Rationals - Extending Python's Number hierarchy
115	src	Fast pow
114	src	Python Iterators! COPY or NO COPY?
113	src	Getting around the recursion limit
112	src	Every Python dev falls for this (name mangling)
111	src	Functions within functions, closures, and variable scopes in Python
110	src	Return Value Optimization and Copy Elision in C++
109	src	It's time... for PYTHON 3.11!
108	src	Python Generators
107	src	8 things in Python you didn't realize are descriptors
106	src	str/int: Controversial breaking change added to Python
105	src	Python's creator wishes this feature never existed
104	src	Unlocking your CPU cores in Python (feat. multiprocessing)
103	src	For loops are redundant
102	src	How to use Python features from future versions!
101	src	Use THIS for looping over several Python dictionaries
100	src	Python's most DISLIKED __dunder__ (and what to use instead)
99	src	sum(range(n)) != n(n+1)/2
98	src	Permutations - A Python itertools Algorithm
97	src	Python's secret second argument to iter()
96	src	Why do some Python classes inherit from object?
95	src	Method Chaining Classes in Python
94	src	Positional-only and keyword-only arguments in Python
93	src	super, Python's most misunderstood feature.
92	src	Pythonizing Imgui (feat. Cython)
91	src	Python lists remember what you did to them
90	src	The real purpose of Python's match statement, feat. CSTs
89	src	Analyzing Python Code from Python - AST Parsing and Custom Lint Checks
88	src	Does std::endl fix your multithreaded prints? (C++)
87	no src	A technical interview with the creator of C++, Bjarne Stroustrup
86	src	31 nooby C++ habits you need to ditch
85	no src	Building a Python app with Anvil to email me if my website goes down
84	src	Python's staticmethod and classmethod, what are they for?
83	src	25 nooby Python habits you need to ditch
82	src	Avoiding import loops in Python
81	src	Your code could be 2x faster! Gains from cache locality and branch predictability
80	src	Python __slots__, slots, and object layout
79	src	Which Python @dataclass is best? Feat. Pydantic, NamedTuple, attrs...
78	src	The best way to keep your repos tidy.
77	src	Mind-bending metaclasses - adding function overloads to Python
76	src	__new__ vs __init__ in Python
75	src	You can pip install straight from GitHub
74	src	Automated Testing in Python with pytest, tox, and GitHub Actions
73	src	Why does Python even allow this? Chained comparison jank.
72	src	Multiple Assignments in Python
71	src	Should you use "not not x" instead of "bool(x)" in Python?
70	src	restrict: the only C keyword with no C++ equivalent
69	src	A fun game show probability problem | Bonus cash stop riddle
68	src	Skyline Problem with C++ Solution Explained
67	src	You should put this in all your Python scripts
66	src	How an x becomes a bool in Python, C++, and C
65	src	A crypto breakfast: salt, pepper, and hash | Secure Python
64	src	MD5 - A broken secure hash algorithm | Python implementation
63	src	Diagnose slow Python code. (Feat. async/await)
62	src	Python f-strings can do more than you thought. f'{val=}', f'{val!r}', f'{dt:%Y-%m-%d}'
61	src	Time to Hack - Cracking passwords using timing information | Secure Python
60	src	Mathematically Perfect Tongue Twisters | Python Linguistics
59	src	Python + YouTube API | Automating descriptions
58	src	Not all exceptions are Exceptions | Python Exceptions
57	src	Python's New Match Statement is Tricky! Q&A
56	src	Introducing mZips! Python Zip and Zip Longest
55	src	The error messages Python always needed! New in Python 3.10 - Part II
54	src	Can you BELIEVE all this new type hinting stuff? New in Python 3.10 - Part I
53	src	0.1 + 0.2 is NOT 0.3 in Most Programming Languages
52	src	How To Install Python for Data Science
51	src	Efficient Exponentiation
50	src	Variable Lookup Weirdness in Python
49	src	The Best Way to Check for Optional Arguments in Python
48	src	Binary Search - A Different Perspective | Python Algorithms
47	src	Python's sharpest corner is ... plus equals? (+=)
46	src	Every PROOF you've seen that .999... = 1 is WRONG
45	src	C++ Sudoku Solver in 7 minutes using Recursive Backtracking
44	src	Python dataclasses will save you HOURS, also featuring attrs
43	src	[April Fools 2021] Python 4.0! New old print, mandatory static typing, StackOverflow integration
42	src	Thank you for 100x-ing my channel in 2 weeks!
41	src	C++ First Missing Int, faster than 100%!
40	src	How Fast is Python's Sort? Performance Testing
39	src	The Hottest New Feature Coming In Python 3.10 - Structural Pattern Matching / Match Statement
38	src	Longest Increasing Subsequence - Python explanation
37	src	50 Million Primes In 5 Seconds - Segmented Sieve of Eratosthenes
36	src	Magic Methods - Making Python builtins work with your classes
35	src	How to find the Maximum Increasing Sum of a List
34	src	Chaos and Order - A Brownian Fractal Infinite Zoom to Classical Music
33	src	Infinite Zoom on Brownian Motion with Chill Music (4k 60fps 10^541 Zoom)
32	src	Numpy Broadcasting Explained
31	src	The Fastest Way to Loop in Python - An Unfortunate Truth
30	src	The Single Most Useful Decorator in Python
29	src	Simulating Brownian Motion in Python
28	src	JSON Tutorial Python | Basic Python Recipes
27	src	Trapping Rain in Python with Numpy | LeetCode Hard Interview Solution
26	src	Turing Machine Example Program | Doubling Ones
25	src	Find the First Missing Positive Int | Hard Interview Question on LeetCode
24	src	Merge K Sorted Lists using a C++ Heap | Hard LeetCode Interview Question
23	src	Hard LeetCode Interview Question | Regular Expression Matching
22	src	Solving Hard LeetCode Interview Questions | Median of Two Sorted Arrays
21	src	How Many Matches in a Single Elimination Tournament? | Challenge Question
20	src	Cycles in Linked Lists Part 2 - Find the Start of the Cycle
19	src	Stream Sample - Random Sampling a Read Once Stream | Neat Trick
18	src	Detecting Cycles in Linked Lists Using the Tortoise and Hare Algorithm
17	src	Remove Unicode �? Characters from CSV files
16	src	Why a list[Derived] is NOT a list[Base]
15	src	Writing a Turing Machine in Python Step by Step
14	src	Finding Primes in Python with the Sieve of Eratosthenes
13	src	Finding Your Largest Files | Basic Python Recipes
12	src	Code that runs BEFORE you call a function | Python Weirdness
11	src	'and' and 'or' do NOT return bools in Python!
10	src	Ordering dependencies with TopologicalSorter - New in Python 3.9
9	src	How to flatten a list | Basic Python Recipes
8	src	randbytes and printing garbage for fun - New in Python 3.9
7	src	Metadata in type annotations using Annotated - New in Python 3.9
6	src	removeprefix and removesuffix string methods - New in Python 3.9
5	src	Python Weirdness - The comma equals ,= operator?
4	src	Empty Truth in Python
3	src	Relaxed restrictions on decorators - New feature in Python 3.9
2	src	Goodbye, List! Type hinting standard collections - New in Python 3.9
1	src	Doeblin Tree
0	src	Dictionary Union (or/pipe operator) - New Feature in Python 3.9