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Asked: 2026-06-13T22:01:19+00:00

I have a indentation error in Python and i dont know why and how

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I have a indentation error in Python and i dont know why and how to resolve it.

I looked for special characters that i might have missed, but none found;

Why do i get this error ?

user = {'_id':username}

users.find_one(user)

enter image description here

IN CONCLUSSION : NEVER MIX TABS WITH SPACES!

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1 Answer

  1. Editorial Team

    The most common reason for this type of error is mixing tabs and spaces.

    To fix it try converting all tabs to spaces in your file.

    From PEP 8 — Style Guide for Python Code:

    Tabs or Spaces?

    Never mix tabs and spaces.

    The most popular way of indenting Python is with spaces only. The second-most popular way is with tabs only. Code indented with a mixture of tabs and spaces should be converted to using spaces exclusively. When invoking the Python command line interpreter with the -t option, it issues warnings about code that illegally mixes tabs and spaces. When using -tt these warnings become errors. These options are highly recommended!

    For new projects, spaces-only are strongly recommended over tabs. Most editors have features that make this easy to do.

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