<div dir="ltr">Thanks! I appreciate your sharing the script, seems very helpful.<div><br></div><div>Robby</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Sep 13, 2019 at 6:58 AM Jose-Marcio Martins da Cruz <<a href="mailto:jose.marcio.mc@gmail.com">jose.marcio.mc@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br>
Hello,<br>
<br>
I had a problem with my books collection. Unfortunately, a bad configuration was the reason that some of ISBN of my <br>
books were converted from ISBN-13 to ISBN-10.<br>
<br>
The reason was that I configured my data sources to overwrite existing data. This is a bad idea.<br>
<br>
After this problem solved, I had to convert back some ISBN codes from ISBN-10 to ISBN-13.<br>
<br>
I wrote a simple python script to do the conversion. So, maybe this may be useful for some of you. I'm attaching it.<br>
<br>
Best regards<br>
<br>
José-Marcio<br>
</blockquote></div>