Thanks hipo,haj for your comments !

both code fragments are just fragments. The use commands I have at the beginning. Also the # sign was comming from trying different things out.

"does not work" is indeed not specific! Sorry for that ! The issue is that the python version works fine. The server gives back the requested data. In the perl version the server response with an Error 500 Internal Server Error. That mens that something must be different in the two sended POSTs.

When the line #$request->content($json_data) is commented out, than the server response an error 411 Length Required

What would also help: Can I log what was exactly sent in both cases, to be able to compare all sent data ?

In reply to Re: LWP: transfer from Python to Perl by Anonymous Monk
in thread LWP: transfer from Python to Perl by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.