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Asked: 2026-05-14T15:24:41+00:00

I’m writing an Fast-CGI application that makes use of sqlAlchemy & MySQL for persistent

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I’m writing an Fast-CGI application that makes use of sqlAlchemy & MySQL for persistent data storage. I have no problem connecting to the DB and setting up ORM (so that tables get mapped to classes); I can even add data to tables (in memory).

But, as soon as I query the DB (and push any changes from memory to storage) I get a 500 Internal Server Error and my error.log records malformed header from script. Bad header=FROM tags : index.py, when tags is the table name.

Any idea what could be causing this?

Also, I don’t think it matters, but its a Linux development server talking to an off-site (across the country) MySQL server.

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1 Answer

  1. Editorial Team

    Looks like SQLalchemy is pushing or echoing the query to your output (where fast-cgi) is instead looking for headers, then body. Maybe setting sqlalchemy.echo to False can help.

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