[python] Print Calendar 

from calendar import*
year = int(input('EnterYear: '))

print(calendar(year, 2, 1, 8, 3))

#2 = 2 characters for days (Mo, Tu, etc)
#1 = 1 line (row) for each week
#8 = 8 rows for each month
#3 = 3 columns for all months of the year.

PyWhatKit은 다양한 유용한 기능을 갖춘 Python 라이브러리입니다. 사용하기 쉽고 추가 설정이 필요하지 않습니다. 현재 WhatsApp 및 YouTube 자동화를 위한 가장 인기 있는 라이브러리 중 하나입니다. 새로운 기능과 버그 수정이 포함된 새로운 업데이트가 자주 출시됩니다.

PyWhatKit is a Python library with various helpful features. It's easy-to-use and does not require you to do any additional setup. Currently, it is one of the most popular library for WhatsApp and YouTube automation. New updates are released frequently with new features and bug fixes.

https://pypi.org/project/pywhatkit/

pip3 install pywhatkit

import pywhatkit as kit
import datetime
import time

# Replace these values with your own
phone_number = "+1234567890"  # Include the country code without '+' or '0'
message = "Hello, this is a test message!"

# Set the time to send the message (24-hour format)
hour = 12
minute = 0

# Get the current time
now = datetime.datetime.now()
current_hour = now.hour
current_minute = now.minute

# Calculate the delay in seconds until the specified time
delay_seconds = ((hour - current_hour) * 60 + (minute - current_minute)) * 60

# Wait until the specified time
if delay_seconds > 0:
    print(f"Waiting for {delay_seconds} seconds until {hour}:{minute}")
    time.sleep(delay_seconds)
    

# Send the WhatsApp message
kit.sendwhatmsg(phone_number, message, now.hour, now.minute + 1)  # Adding 1 minute to the current time

print("Message sent successfully!")

ValueError: Unable to find resource t64.exe in package pip._vendor.distlib

Python 3.x에서도 pip을 업그레이드할 때 오류가 발생하는 경우가 있다. 이런 경우에는 다음과 같이 upgrade하라는 말만 앵무새처럼 반복하게 된다.

그럴 때에는 get-pip.py 파일을 받아서 실행하면 된다. get-pip.py는 다음 URL에서 받을 수 있는데, 그냥 누르면 파일 내용이 열리므로 마우스 우클릭 후 "다른 이름으로 링크 저장..." 메뉴를 선택하여 get-pip.py란 이름으로 저장한다.

https://bootstrap.pypa.io/get-pip.py

get-pip.py를 받은 후에는 저장된 폴더를 열고 그 폴더에서 Shift-우클릭을 통해 명령 프롬프트를 연 다음 일반 Python 프로그램처럼 이를 실행해 준다.

출처: https://woogyun.tistory.com/698 [살아가는 이야기:티스토리]

[python] Hand gesture recognition in Python using OpenCV

https://github.com/ishfulthinking/Python-Hand-Gesture-Recognition

https://docs.python.org/ko/3/library/turtle.html

turtle — 터틀 그래픽¶

소스 코드: Lib/turtle.py

소개

Turtle graphics is an implementation of the popular geometric drawing tools introduced in Logo, developed by Wally Feurzeig, Seymour Papert and Cynthia Solomon in 1967.

Turtle star

turtle은 간단한 움직임을 반복하는 프로그램을 사용하여 복잡한 모양을 그릴 수 있습니다.

In Python, turtle graphics provides a representation of a physical “turtle” (a little robot with a pen) that draws on a sheet of paper on the floor.

It’s an effective and well-proven way for learners to encounter programming concepts and interaction with software, as it provides instant, visible feedback. It also provides convenient access to graphical output in general.

Turtle drawing was originally created as an educational tool, to be used by teachers in the classroom. For the programmer who needs to produce some graphical output it can be a way to do that without the overhead of introducing more complex or external libraries into their work.

Tutorial

New users should start here. In this tutorial we’ll explore some of the basics of turtle drawing.

Starting a turtle environment

In a Python shell, import all the objects of the turtle module:

from turtle import *

If you run into a No module named '_tkinter' error, you’ll have to install the Tk interface package on your system.

Basic drawing

Send the turtle forward 100 steps:

forward(100)

You should see (most likely, in a new window on your display) a line drawn by the turtle, heading East. Change the direction of the turtle, so that it turns 120 degrees left (anti-clockwise):

left(120)

Let’s continue by drawing a triangle:

forward(100)
left(120)
forward(100)

Notice how the turtle, represented by an arrow, points in different directions as you steer it.

Experiment with those commands, and also with backward() and right().

펜 제어

Try changing the color - for example, color('blue') - and width of the line - for example, width(3) - and then drawing again.

You can also move the turtle around without drawing, by lifting up the pen: up() before moving. To start drawing again, use down().

The turtle’s position

Send your turtle back to its starting-point (useful if it has disappeared off-screen):

home()

The home position is at the center of the turtle’s screen. If you ever need to know them, get the turtle’s x-y co-ordinates with:

pos()

Home is at (0, 0).

And after a while, it will probably help to clear the window so we can start anew:

clearscreen()

Making algorithmic patterns

Using loops, it’s possible to build up geometric patterns:

for steps in range(100):
    for c in ('blue', 'red', 'green'):
        color(c)
        forward(steps)
        right(30)

- which of course, are limited only by the imagination!

Let’s draw the star shape at the top of this page. We want red lines, filled in with yellow:

color('red')
fillcolor('yellow')

Just as up() and down() determine whether lines will be drawn, filling can be turned on and off:

begin_fill()

Next we’ll create a loop:

while True:
    forward(200)
    left(170)
    if abs(pos()) < 1:
        break

abs(pos()) < 1 is a good way to know when the turtle is back at its home position.

Finally, complete the filling:

end_fill()

(Note that filling only actually takes place when you give the end_fill() command.)

How to…

This section covers some typical turtle use-cases and approaches.

Get started as quickly as possible

One of the joys of turtle graphics is the immediate, visual feedback that’s available from simple commands - it’s an excellent way to introduce children to programming ideas, with a minimum of overhead (not just children, of course).

The turtle module makes this possible by exposing all its basic functionality as functions, available with from turtle import *. The turtle graphics tutorial covers this approach.

It’s worth noting that many of the turtle commands also have even more terse equivalents, such as fd() for forward(). These are especially useful when working with learners for whom typing is not a skill.

You’ll need to have the Tk interface package installed on your system for turtle graphics to work. Be warned that this is not always straightforward, so check this in advance if you’re planning to use turtle graphics with a learner.

Use the turtle module nam

1. Pandas

Pandas is a software library written for the python programming language for data manipulation and analysis.

Pandas is well suited for many different kinds of data:

• Tabular data with heterogeneously-types columns.
• Ordered and unordered time series data.
• Arbitrary matrix data with row and column labels.
• Any other form of observational / statistical data sets.

 The data actually need not be labeled at all to be placed into a pandas data structure.

2. NumPy

Numpy is the core library for scientific computing in Python. It provides a high-performance multidimensional array object, and tools for working with these arrays.

3. Matplotlib

Matplotlib is a Python package used for 2D graphics.

• Bar graph
• Histograms
• Scatter Plot
• Pie Plot
• Hexagonal Bin Plot
• Area Plot

4. Selenium

The selenium package is used to automate web browser interaction from Python.

5. OpenCV

OpenCV- Python is a library of Python designed to solve computer vision problems.

6. SciPy

Scipy is a free and open-source Python library used for scientific computing and technical computing.

7. Scikit-Learn

Scikit-learn (formerly scikits.learn) is a free software machine learning library for the Python programming language. It features various classification, regression and clustering algorithms.

8.  PySpark

The Spark Python API (PySpark) exposes the Spark programming model to Python.

9. Django

Diango is a Python web framework. A framework provides a structure and common methods to make the life of a web application developer much easier for building flexible, scalable and maintainable web applications

• Django is a high-level and has a MVC-MVT styled architecture.
• Django web framework is written on quick and powerful Python language.
• Django has a open-source collection of libraries for building a fully functioning web application.

10. Tensor Flow

TensorFlow is a Python library used to implement deep networks. In TensorFlow, computation is approached as a dataflow graph.