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edited generate/read qr code tutorial

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	`1`	`+importqrcode`
	`2`	`+importnumpyasnp`
	`3`	`+# data to encode`
	`4`	`+data="https://www.thepythoncode.com"`
	`5`	`+`
	`6`	`+# instantiate QRCode object`
	`7`	`+qr=qrcode.QRCode(version=1,box_size=10,border=4)`
	`8`	`+# add data to the QR code`
	`9`	`+qr.add_data(data)`
	`10`	`+# compile the data into a QR code array`
	`11`	`+qr.make()`
	`12`	`+# print the image shape`
	`13`	`+print("The shape of the QR image:",np.array(qr.get_matrix()).shape)`
	`14`	`+# transfer the array into an actual image`
	`15`	`+img=qr.make_image(fill_color="white",back_color="black")`
	`16`	`+# save it to a file`
	`17`	`+img.save("site_inversed.png")`

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