Frank.

I was able to solve it this way. I removed the pho tags and put it that way. It worked perfect.
Thanks for the help and the motivation.
Your new friend in Rio de Janeiro.

print(’
<!DOCTYPE html>
<html lang=“pt-Br”>
<head>
<meta charset=“utf-8” />
<title>C?digo de Barras</title>
</head>
<body>
<form action="#"><method=“post”>
C?digo de barras
(<a href=“http://zxing.appspot.com/scan?ret=http:/www.indexaweb.com.br/verde/barcode/barcode.php?codigo={’.‘CODE’.’}”>Leitor</a>):
<input type=“text” name=“cod” value=""/>
<input type=“submit” value=“Submit”>
</form>
</body>
</html>
');

My best regards.

Um grande abra?o