upstream/ipython Files · IPython/utils/pyfile.py

Backport PR : Custom tracebacks...

Backport PR : Custom tracebacks Rather than special casing IPython.parallel errors (which led to issue ), this adds a simple API where exception classes can offer a custom traceback, by defining a `_render_traceback_(self)` method. It also adds some documentation on how third parties can integrate packages with IPython. 'Configuration & customisation' seemed the most natural home for this. We should remember to close when we merge this - I forgot to put it in a commit message.

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             pyfile.py
        
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        Thomas Kluyver
    
Find .py files for verbose tracebacks, rather than trying to tokenize .pyc files.

              r5851
            
      """Utilities for working with Python source files.

      Exposes various functions from recent Python standard libraries, along with

      equivalents for older Python versions.

      """

      import os.path

      try:    # Python 3.2

          from imp import source_from_cache, cache_from_source

      except ImportError:

          # Python <= 3.1: .pyc files go next to .py

          def source_from_cache(path):

              basename, ext = os.path.splitext(path)

        Thomas
    
Fix syntax for Python 2.6 - no set literals.

              r5882
            
              if ext not in ('.pyc', '.pyo'):

        Thomas Kluyver
    
Find .py files for verbose tracebacks, rather than trying to tokenize .pyc files.

              r5851
            
                  raise ValueError('Not a cached Python file extension', ext)

              # Should we look for .pyw files?

              return basename + '.py'

          def cache_from_source(path, debug_override=None):

              if debug_override is None:

                  debug_override = __debug__

              basename, ext = os.path.splitext(path)

              return basename + '.pyc' if debug_override else '.pyo'

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Thomas Kluyver Find .py files for verbose tracebacks, rather than trying to tokenize .pyc files.	r5851	"""Utilities for working with Python source files.

		Exposes various functions from recent Python standard libraries, along with
		equivalents for older Python versions.
		"""
		import os.path

		try: # Python 3.2
		from imp import source_from_cache, cache_from_source
		except ImportError:
		# Python <= 3.1: .pyc files go next to .py
		def source_from_cache(path):
		basename, ext = os.path.splitext(path)
Thomas Fix syntax for Python 2.6 - no set literals.	r5882	if ext not in ('.pyc', '.pyo'):
Thomas Kluyver Find .py files for verbose tracebacks, rather than trying to tokenize .pyc files.	r5851	raise ValueError('Not a cached Python file extension', ext)
		# Should we look for .pyw files?
		return basename + '.py'

		def cache_from_source(path, debug_override=None):
		if debug_override is None:
		debug_override = __debug__
		basename, ext = os.path.splitext(path)
		return basename + '.pyc' if debug_override else '.pyo'