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Commit 4f983ad

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Added PyBasics-1.ipynb
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‎basic/PyBasics-1.ipynb

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{
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"cells": [
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Python Keywords\n",
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"- Keywords are predefined, reserved words \n",
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"- Cannot use a keyword as a variable name, function name\n",
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"- used to define the syntax and structure of the Python language\n",
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"\n",
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"**Python has `35 keywords` >> All the keywords except True, False and None are in lowercase**"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## Python 35 Keywords\n",
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"\n",
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"`import` `from` `as` \n",
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"\n",
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"`if` `else` `elif`\n",
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"\n",
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"`in` `is` `and` `or` `not`\n",
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"\n",
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"`for` `while` `break` `continue` `pass`\n",
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"\n",
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"`def` `return` `raise` `yield`\n",
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"\n",
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"`try` `except` `finally` `assert`\n",
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"\n",
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"`global` `nonlocal`\n",
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"\n",
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"`lambda` `True` `False` `None`\n",
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"\n",
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"`with` `await` `async` `del` `class`\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 1,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"\n",
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"Here is a list of the Python keywords. Enter any keyword to get more help.\n",
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"\n",
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"False class from or\n",
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"None continue global pass\n",
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"True def if raise\n",
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"and del import return\n",
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"as elif in try\n",
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"assert else is while\n",
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"async except lambda with\n",
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"await finally nonlocal yield\n",
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"break for not \n",
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"\n"
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]
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}
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],
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"source": [
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"# Print All Python Keywords\n",
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"help(\"keywords\")"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Python Identifiers\n",
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"\n",
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"Identifiers are the name given to variables, classes, methods, etc.\n",
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"\n",
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"`language = 'Python'`\n",
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"Here, language is a variable (an identifier) which holds the value 'Python'\n",
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"\n",
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"\n",
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"## Variables\n",
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"A `variable` is a container (storage area) to hold data. Exp: `number = 10`\n",
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"\n",
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"**Variable Naming Conventions**\n",
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"- snake_case\n",
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"- MACRO_CASE\n",
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"- camelCase\n",
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"- CapWords\n",
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"\n",
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"\n",
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"## Constants\n",
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"A `constant` is a special type of variable whose value cannot (is not) be changed. Exp: PI = 3.14\n",
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"\n",
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"## Literals\n",
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"`Literals` are representations of fixed values in a program. \\\n",
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"They can be numbers, characters, or strings, etc. For example, 'Hello, World!', 12, 23.0, 'C', etc.\n",
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"\n",
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"**Python Literal Types**\n",
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" - `Numeric literals: ` can belong to 3 different numerical types: Integer, Float, and Complex. Exp: a = 6 + 9j. \n",
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" - `boolean literals:` True, False\n",
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" - `Character literals:` are unicode characters enclosed in a quote. Exp: some_character = 'S'\n",
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" - `String literals` are sequences of Characters enclosed in quotation marks.\n",
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" - `Special literal:` None >> used to specify a null variable. Exp: num = None\n",
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" - `Four literal collections:` List literals, Tuple literals, Dict literals, and Set literals.\n",
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"\n"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Python Data Types\n",
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"\n",
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"\n",
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"![Python Data Types](imgs/python_data_types.PNG)\n",
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"\n",
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"\n",
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"**Since everything is an object in Python programming, data types are actually classes and variables are instances(object) of these classes.**\n",
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"\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 4,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"5 is of type <class 'int'>\n",
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"2.0 is of type <class 'float'>\n",
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"(1+2j) is of type <class 'complex'>\n",
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"5 is Binary of type <class 'int'>\n",
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"105 is Octa of type <class 'int'>\n",
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"337 is Hexa of type <class 'int'>\n",
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"010\n"
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]
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}
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],
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"source": [
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"num1 = 5\n",
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"print(num1, 'is of type', type(num1))\n",
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"\n",
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"num2 = 2.0\n",
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"print(num2, 'is of type', type(num2))\n",
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"\n",
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"num3 = 1+2j\n",
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"print(num3, 'is of type', type(num3))\n",
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"\n",
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"num4 = 0b101 #Binary \n",
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"print(num4, 'is Binary of type', type(num4))\n",
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"\n",
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"num4 = 0o151\n",
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"print(num4, 'is Octa of type', type(num4))\n",
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"\n",
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"num4 = 0x151\n",
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"print(num4, 'is Hexa of type', type(num4))\n",
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"\n",
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"binary = 0b010\n",
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"print(\"{:03b}\".format(binary))"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": []
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": []
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.10.4"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 2
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}

‎basic/imgs/python_data_types.PNG

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