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Debugging

Debugging in Spyder is supported thanks to the following Python modules:

  • pdb: the Python debugger, which is included in Python standard library.
  • winpdb: a graphical frontend to pdb, which is an external package (in the :doc:`editor`, press F7 to run winpdb on the currently edited script).

Debugging with pdb

The Python debugger is partly integrated in Spyder:

  • Breakpoints may be defined in the :doc:`editor`.
    • Simple breakpoints can be set from the Run menu, by keyboard shortcut (F12 by default), or by double-click to the left of line numbers in the :doc:`editor`.
    • Conditional breakpoints can also be set from the Run menu, by keyboard shortcut (Shift+F12 by default), or by Shift+double-click to the left of line numbers in the :doc:`editor`.
  • The current frame (debugging step) is highlighted in the :doc:`editor`.
  • At each breakpoint, globals may be accessed through the :doc:`variableexplorer`.

For a simple, yet quite complete introduction to pdb, you may read this: http://pythonconquerstheuniverse.wordpress.com/category/python-debugger/

Related plugins: