python qr generator

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San Wai Tang answered on March 14, 2020 Popularity 9/10 Helpfulness 3/10

answer python qr generator

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how to display qr code in python

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import os
import qrcode

img = qrcode.make("https://Your-URL-here")

img.save("qr.png", "PNG")

os.system("display qr.png")

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Tags: display

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Contributed on Apr 14 2022

Piche Traful

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python qr code

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# pip install pyqrcode
#pip install pypng

import pyqrcode
import png
from pyqrcode import QRCode

string = 'www.google.com'
url = pyqrcode.create(string)

url.svg("myqr.svg" , scale = 8)
url.png("myqr.png" , scale = 6)

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Contributed on Dec 09 2022

Adam, the developer

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python library to make qr codes

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pip install qrcode[pil]

Popularity 10/10 Helpfulness 5/10 Language python

Source: pypi.org

Tags: python py

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Contributed on Mar 14 2020

Upset Unicorn

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qr decomposition python

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#!/usr/bin/env python3

import numpy as np

def qr(A):
    m, n = A.shape
    Q = np.eye(m)
    for i in range(n - (m == n)):
        H = np.eye(m)
        H[i:, i:] = make_householder(A[i:, i])
        Q = np.dot(Q, H)
        A = np.dot(H, A)
    return Q, A

def make_householder(a):
    v = a / (a[0] + np.copysign(np.linalg.norm(a), a[0]))
    v[0] = 1
    H = np.eye(a.shape[0])
    H -= (2 / np.dot(v, v)) * np.dot(v[:, None], v[None, :])
    return H

# task 1: show qr decomp of wp example
a = np.array(((
    (12, -51,   4),
    ( 6, 167, -68),
    (-4,  24, -41),
)))

q, r = qr(a)
print('q:\n', q.round(6))
print('r:\n', r.round(6))

# task 2: use qr decomp for polynomial regression example
def polyfit(x, y, n):
    return lsqr(x[:, None]**np.arange(n + 1), y.T)

def lsqr(a, b):
    q, r = qr(a)
    _, n = r.shape
    return np.linalg.solve(r[:n, :], np.dot(q.T, b)[:n])

x = np.array((0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10))
y = np.array((1, 6, 17, 34, 57, 86, 121, 162, 209, 262, 321))

print('\npolyfit:\n', polyfit(x, y, 2))

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Source: rosettacode.org

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Contributed on Oct 03 2022

barisx

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how to create qrcode in python

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import qrcode
img=qrcode.make("message")
img.save("pic.png")    //save the qrcode photo as pic.png

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Contributed on Mar 24 2022

4224 Ravi Kiran

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create qr code in python

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# Import QRCode from pyqrcode
import pyqrcode
import png
from pyqrcode import QRCode
  
  
# String which represents the QR code
s = "www.codingforfree.com"
  
# Generate QR code
url = pyqrcode.create(s)
  
# Create and save the svg file naming "myqr.svg"
url.svg("myqr.svg", scale = 8)
  
# Create and save the png file naming "myqr.png"
url.png('myqr.png', scale = 6)

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Contributed on Jul 28 2022

Travinth Dayalaeaswaran

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qr code generator using python

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#Install modules -> qrcode , pillow

import qrcode
import PIL

qr = qrcode.QRCode(version=1,
                    error_correction=qrcode.constants.ERROR_CORRECT_H,
                    box_size=100, border=1)

qr.add_data("https://rafiulislamrohan.github.io/rafiulislam")

qr.make(fit=True)
img = qr.make_image(fill_color="#90EE90", back_color="black")

img.save("Rafiul_Islam.png")

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Contributed on Feb 10 2024

Rafiul islam

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Qrcode Python

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import tempfile
import segno
import xlwings as xw


def main():
    book = xw.Book.caller()
    sheet = xw.sheets[0]
    
    # Start at the selected cell
    start_cell = book.app.selection
    if start_cell.value is None:
        raise TypeError('Please select a cell with a value!')
    urls = start_cell.options(expand='down', ndim=1).value
    
    # Loop through each URL and generate the QR code
    for ix, url in enumerate(urls):
        # Generate the QR code
        qr = segno.make(url)
        with tempfile.TemporaryDirectory() as td:
            # Save the QR code as a temporary svg file. If you are on macOS, use pdf
            # instead and if you don't have Microsoft 365, you may have to use png
            filepath = f'{td}/qr.svg'
            qr.save(filepath, scale=5, border=0, finder_dark='#15a43a')
            # Insert the QR code to the right of the URL
            destination_cell = start_cell.offset(row_offset=ix, column_offset=1)
            sheet.pictures.add(filepath,
                               left=destination_cell.left,
                               top=destination_cell.top)

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Source: www.xlwings.org

Tags: python qr-code qr-co

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Contributed on Apr 25 2024

Good Gecko

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Python Script to Generator QR Code

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-2

import pyqrcode
import png
from PIL import Image
s = "https://python.plainenglish.io/" # url to open after scanning qr code
url = pyqrcode.create(s) # creating qr code
img = "python-in-plain-english.png" # name of image
url.png(img, scale=10) # saving image as png
im=Image.open(img) # opening image
im.show()

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Contributed on Jun 16 2022

Harendra

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python qr generator

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