py2nb

0/tutorial.py

@@ -93,7 +93,7 @@ that is some values, we also have containers, which contain values
 """
 
 my_list = [5, "list", "items", ("with", "different"), type]
-# type() is a function: you could put literally everthing
+# type() is a function: you could put literally everything in a list it does not care
 
 """
 values, including lists. yes, thats powering your 2d matrix.
@@ -396,6 +396,11 @@ for number in one_to_20:
 
 # quick notice: this number variable can not be accessed outside the for loop.
 
+# actually it will be the last element actually i dont know
+# coming from literally any other language:
+# a variable made for the loop should only stay in the loop
+# why is python like this? is this a bug?
+
 """
 while.
 
@@ -435,6 +440,12 @@ while True:
 
 # wtf
 
+"""
+match case
+
+like switch case but it is match case and it doesnt have fallthroughs
+"""
+
 
 """
 errors. you get those when you use a thing and it doesnt run how you want, so it crashes and print:
@@ -607,5 +618,95 @@ bungee = BungeeJumper(68.1, 0.25)
 bungee.dt = 2
 print(bungee.vt_next())
 
+
 # wow it so works
 # trailing off
+
+"""so much over here. a lot of it is boilerplate,
+only a few: namely vt_step and current_dvdt is doing all the math.
+
+yes. thats code for you. a lot of structure for idk 5 lines of actual calculation or something idfk
+"""
+
+"""
+Class. The heart of python. literally everything is a class. 
+
+you are either working with a function, which is a class,
+a data type, which is a class,
+or like an external module / package, which is (oh no) also a class.
+
+
+class in python is more lenient than java:
+
+first up: everything need not be a class:
+in java you have to declare the main class and the main function.
+in python they see statement they execute statement. no need for class.
+
+while java you can only inherit from only one base class, in python
+you can have multiple base classes, classes that double as interfaces, etc.
+
+you can also have directly editable attributes.
+No getter / setter functions. if you want you could make them, like i do, but rn you dont
+
+you also have no private attributes. i can only hope you wont touch my 
+bungee._BungeeJumper__time and mess it up.
+
+Class is yk classic OOP: you have class, you have instances of class.
+class BungeeJumper is a class, bungee is an instance.
+int is a class, and 1 is an instance.
+
+
+everywhere else they call a function function, but in a class they call them Methods.
+
+methods have this kinda thing they call dot notation.
+basically instance.method is just another function. but somethings going on:
+
+instance instead of doing nothing will be passed into methods as first argument.
+yes, not javas `this`. `this` is a set name.
+python `self` i could change it to whatever. instance will be passed to it.
+
+That is a classmethod.
+a staticmethod has no such rules.
+"""
+
+# do you know you can declare a class without even touching the word class at all? its the power of type().
+
+
+@classmethod
+def lda_set_example_arg(self, arg):
+    self.lda_example_instance_arg = arg
+
+
+" __init__ is a magic function that will run when you make a class instance"
+
+LdaExampleClass = type(
+    "LdaExampleClass",
+    (object,),
+    {
+        "__init__": lda_set_example_arg,
+        "lda_example_class_arg": 1,
+        "quadratic_builder": quadratic_builder,
+        "hello_world": hello_world,
+        "hello_to": hello_to,
+    },
+)
+
+LdaExampleClass.hello_to("lda")  # prints hello lda!
+
+
+def lda_print_example_arg(self):
+    print("instance:", self.lda_example_instance_arg)
+    print("class:", self.lda_example_class_arg)
+
+
+# objects can freely add properties
+LdaExampleClass.lda_print_example_arg = classmethod(lda_print_example_arg)
+
+lda1 = LdaExampleClass(3)  # this must fit the args of self.__init__()
+lda1.lda_print_example_arg()  # pylint: disable=no-member # ide freak out
+# this will print instance which we just passed as 3,
+# and class which is from the above which is 1.
+# Nothing was changed: i dont assign anything to anything in the functions
+# except for lda_set_example_arg
+
+# dont do this, however, as ide will freak out.

0/tutorial2.ipynb

@@ -0,0 +1,226 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Python tutorial\n",
+    "\n",
+    "this is a python tutorial in jupyter notebook! this will serve as a continuation of that last one."
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## but last one is ugh\n",
+    "\n",
+    "ok mr complainer here we go:\n",
+    "\n",
+    "### basic"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "x = 3 # variable = value\n",
+    "x = 31.28 # float value\n",
+    "\n",
+    "x = 3 + 5\n",
+    "assert x == 8"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "above is an interactive piece of code. you will press run and it will remember.\n",
+    "\n",
+    "If you didnt press run this one will show error:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "try:\n",
+    "    x\n",
+    "except NameError:\n",
+    "    print(\"play the last code block broski\")\n",
+    "else:\n",
+    "    print(\"thats right\")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "try:\n",
+    "    x\n",
+    "except NameError:\n",
+    "    print(\"play the last code block broski\")\n",
+    "else:\n",
+    "    print(\"thats right\")"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### containers\n",
+    "\n",
+    "these are some of the containers.\n",
+    "\n",
+    "list, dict, set is mutable,  \n",
+    "dict keys and set items are unique,  \n",
+    "index list and tuple by index and dict by keys."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "my_list = [\"this\", \"is\", \"a\", \"list\"]\n",
+    "my_dict = {\n",
+    "    \"my key\": \"my value\",\n",
+    "    \"my life\": \"my rules\",\n",
+    "    \"my style\": \"my attitute\"\n",
+    "}\n",
+    "\n",
+    "assert my_list[1] == \"is\" # not \"this\"\n",
+    "assert my_list[-1] == \"list\""
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "my_longer = list(range(20)) # 0 -> 19\n",
+    "\n",
+    "assert my_longer[2:5] == [2, 3, 4] # slice\n",
+    "assert my_longer[:4] == [0, 1, 2, 3] # blank start for 0\n",
+    "assert my_longer[3::5] == [3, 8, 13, 18] # blank stop for past end\n",
+    "assert my_longer[18:6:-4] == [18, 14, 10] # empty/no step for 1\n",
+    "assert my_longer[:-3:8] == [0, 8, 16]"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### function\n",
+    "\n",
+    "function is declared with `def`:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def my_function(a: int, b: int) -> int:\n",
+    "    return a + b"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "you can violate type hints:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "my_function(\"hello \", \"world!\") # dont do this\n",
+    "my_function(2, 6)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### control flow, conditional"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "if 3 + 5 == 6:\n",
+    "    print(\"3 + 5 = 6\")\n",
+    "elif 3 + 5 == 7:\n",
+    "    print(\"3 + 5 = 7\")\n",
+    "elif 3 + 5 == 8:\n",
+    "    print(\"3 + 5 == 8\")\n",
+    "else:\n",
+    "    print(\"D: None of the above\")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "container = [1, 11, 5, 17]\n",
+    "sum_ = 0\n",
+    "for element in container:\n",
+    "    sum_ += element\n",
+    "sum_"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "x = 0\n",
+    "while True:\n",
+    "    x += 1\n",
+    "    \n",
+    "    if x > 20:\n",
+    "        break"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.12.5"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}