upstream/ipython Files · IPython/html/kernelspecs/handlers.py

Work around a bug in setting and getting the mtime in python 2...

Work around a bug in setting and getting the mtime in python 2 See http://bugs.python.org/issue12904. Basically, we can get the mtime in nanosecond precision, but only set it in microsecond precision. This means that the shutil.copy2 will not set the destination's mtime to exactly the same mtime as our source. The end result is that we can *always* end up copying the extension because the source always appears newer. We add a microsecond of fudge time when checking to see if the source is newer than the destination to get around this. This bug is fixed in Python 3.3+, I believe.

Thomas Kluyver - - Load All Authors

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             / IPython / html / kernelspecs / handlers.py
          
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      from tornado import web

      from ..base.handlers import IPythonHandler

      from ..services.kernelspecs.handlers import kernel_name_regex

      class KernelSpecResourceHandler(web.StaticFileHandler, IPythonHandler):

          SUPPORTED_METHODS = ('GET', 'HEAD')

          def initialize(self):

              web.StaticFileHandler.initialize(self, path='')

          @web.authenticated

          def get(self, kernel_name, path, include_body=True):

              ksm = self.kernel_spec_manager

              try:

                  self.root = ksm.get_kernel_spec(kernel_name).resource_dir

              except KeyError:

                  raise web.HTTPError(404, u'Kernel spec %s not found' % kernel_name)

              self.log.debug("Serving kernel resource from: %s", self.root)

              return web.StaticFileHandler.get(self, path, include_body=include_body)

          @web.authenticated

          def head(self, kernel_name, path):

              return self.get(kernel_name, path, include_body=False)

      default_handlers = [

          (r"/kernelspecs/%s/(?P<path>.*)" % kernel_name_regex, KernelSpecResourceHandler),

      ]

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				from tornado import web
				from ..base.handlers import IPythonHandler
				from ..services.kernelspecs.handlers import kernel_name_regex

				class KernelSpecResourceHandler(web.StaticFileHandler, IPythonHandler):
				SUPPORTED_METHODS = ('GET', 'HEAD')

				def initialize(self):
				web.StaticFileHandler.initialize(self, path='')

				@web.authenticated
				def get(self, kernel_name, path, include_body=True):
				ksm = self.kernel_spec_manager
				try:
				self.root = ksm.get_kernel_spec(kernel_name).resource_dir
				except KeyError:
				raise web.HTTPError(404, u'Kernel spec %s not found' % kernel_name)
				self.log.debug("Serving kernel resource from: %s", self.root)
				return web.StaticFileHandler.get(self, path, include_body=include_body)

				@web.authenticated
				def head(self, kernel_name, path):
				return self.get(kernel_name, path, include_body=False)

				default_handlers = [
				(r"/kernelspecs/%s/(?P<path>.*)" % kernel_name_regex, KernelSpecResourceHandler),
				]