Python

import this

print("Hello World!")

• Python 3 docs
• The Hitchhiker’s Guide to Python!

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Variables

• variables: global, static

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Functions

• functions
• lambda
• arguments: *args, **kwargs
  • [RU] Что означает *args, **kwargs
• decorators
  • [RU] Декораторы
• generators
• Measure execution time

Built-in Functions

• Py docs: Built-in Functions
  • exec()
  • help()
  • slice() [:]
  • type()
  • @property
  • [enumerate()]
  • [sorted()]
  • [isinstance()]
  • [round()]
  • [dir(object)]

Try Except (Catch)

• Py docs: Try Exept

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Data Types

• Integer: Data conversion, Integer overflow
• [float]

Data Structure

• Py docs: String
  • string
• Py docs: Dictinary
  • dict
• Py docs: List
  • List / Tuple
• Py docs: Set, Frozenset
  • set
• Py docs: ENUM
  • enum
• Collections:
  • Counter
  • [defaultdict]
  • [namedtuple]
  • [queue]
  • [iter: next()]
  • [zip]
  • [vars] - Returns dict{attribute: value} an object's

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OOP

• class: @property
  • Stack Overflow: Iterate over class attributes
• Magic methods
  • A Guide to Python's Magic Methods

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Standard Library

[yield]

Py docs: The Python Standard Library

• Py docs: Operators
  • operators
• Py docs: Coroutines and Tasks
  • [Coroutines]

Virtual Environments and Packages

• Py docs: Virtual Environments and Packages
  • virtualenv / pip
  • Modules & Packages
  • setup.py:
    • Stack overflow: module import error
    • setup.py (for humans)
  • Py docs: Installing packages using pip and virtualenv
  • [RU] Зачем и как использовать virtualenv
  • [RU] Что вам нужно знать о pip

Standard Modules

• Py docs: Configuration file parser
  • config
  • class Config: Config, CSV, Path
• Py docs: Operating system interfaces
  • os: Environment Variables, Path, PID, Files, Dirs
    • File Operations
  • sys
  • subprocess
• Py docs: Basic date and time types
  • [EN] Date/time value manipulation
  • Date time tutorial
• Py docs: DB-API 2.0 interface for SQLite databases
  • sqlite3
• Py docs: CSV File Reading and Writing
  • csv
  • CVS Files Tutorial
• math
• Py docs: multiprocessing
  • multiprocessing
• [struct]
• [pickle]
• [socket]

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Python application structure

• Python-application-layouts

helloworld/
│
├── helloworld/
│   ├── __init__.py
│   ├── helloworld.py
│   └── helpers.py
│
├── tests/
│   ├── helloworld_tests.py
│   └── helpers_tests.py
│
├── .gitignore
├── LICENSE
├── README.md
├── requirements.txt // Reqired packages
|── conftest.py // Unit testing config
└── setup.py

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Django

pip install Django

pip docs

Version
python -m django --version

TODO: Move to Links:
[RU] Уроки Django 2.x
EN Python Django Tutorial

• Django admin commands - django-admin
• Start django project django-admin startproject django_project
  • Start django app - python manage.py startapp blog

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• ./manage.py runserver
• ./manage.py shell

Django Notes

• Django docs: Templates
  • Django template
  • [Models]
  • [Forms]
• Django docs: Static files
• Django docs: Logging
• Django docs: Lookups
  • Object relation mapping

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Plotly

pip install plotly

pip docs

.plot:
    - data[trace]
    - layout
        - buttons

• Plotly docs
  • Plotly Offline
  • Plotly docs: go.Layout - Buttons
    • Buttoms
  • Plotly docs: go.Bar
  • Plotly docs: go.Scatter
    • Plotly docs: go.Scatter(args)
    • Scatter: Offline, csv data

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PyTest

pip install pytest

pip docs

• PyTest docs
  • PyTest docs: Parametrizing tests / DataProvider

pytest: DataProvider

Run tests - py.test -v

VS Code - Enable PyTest

Manage > Settings > Search: Python › Testing: Py Test Enabled set to true

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Open CV

pip install opencv-python

pip docs

• Open CV docs
  • Image

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Requests: HTTP for Humans

pip install requests

pip docs

• Requests: HTTP for Humans docs

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Selenium with Python

pip install selenium

pip docs

• Selenium docs

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SQLAlchemy

pip install SQLAlchemy

pip docs

• SQLAlchemy docs

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Beautiful Soup

pip install beautifulsoup4

• Beautiful Soup docs
  • soup
• Usage:
  • HTML Report

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Pandas

pip install pandas

Pip docs

• Pandas docs

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Numpu

pip install numpy

Pip docs

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Scipy

pip install scipy

Pip docs

• Scipy docs

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Coverage

pip install coverage