upstream/ipython Files · IPython/nbconvert/preprocessors/__init__.py

avoid race condition when deleting/starting sessions...

avoid race condition when deleting/starting sessions javascript doesn't guarantee the order of AJAX requests, so we give `Session.delete` and `Kernel.kill` a callback signature. Changing the kernel type calls `Notebook.start_kernel`, which terminates the previous session, if defined, before starting the new one. A flag is stored, to prevent multiple simultaneous attempts to start sessions, raising a SessionAlreadyStarting Error, preventing the spec_changed event from firing.

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      # Class base Preprocessors

      from .base import Preprocessor

      from .convertfigures import ConvertFiguresPreprocessor

      from .svg2pdf import SVG2PDFPreprocessor

      from .extractoutput import ExtractOutputPreprocessor

      from .revealhelp import RevealHelpPreprocessor

      from .latex import LatexPreprocessor

      from .csshtmlheader import CSSHTMLHeaderPreprocessor

      from .highlightmagics import HighlightMagicsPreprocessor

      from .clearoutput import ClearOutputPreprocessor

      from .execute import ExecutePreprocessor

      # decorated function Preprocessors

      from .coalescestreams import coalesce_streams

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				# Class base Preprocessors
				from .base import Preprocessor
				from .convertfigures import ConvertFiguresPreprocessor
				from .svg2pdf import SVG2PDFPreprocessor
				from .extractoutput import ExtractOutputPreprocessor
				from .revealhelp import RevealHelpPreprocessor
				from .latex import LatexPreprocessor
				from .csshtmlheader import CSSHTMLHeaderPreprocessor
				from .highlightmagics import HighlightMagicsPreprocessor
				from .clearoutput import ClearOutputPreprocessor
				from .execute import ExecutePreprocessor

				# decorated function Preprocessors
				from .coalescestreams import coalesce_streams