upstream/mercurial-mirror Files · mercurial/thirdparty/attr/converters.py

mail: let all charset values be native strings...

mail: let all charset values be native strings Charset values will typically be used to build email.header.Header instances, which takes str (though it tolerates bytes) or passed to decode()/encode() methods of string values (which want str). It seems that using native str involves less conversions than before and this also helps type hinting (as illustrates removal of pytype disabling instructions).

Siddharth Agarwal - - Load All Authors

File last commit:

r34398:765eb17a default


                r44025:bdb0ddab

default

Download file

             converters.py
        
                    24 lines
            
             | 531 B
            
                | text/x-python
            
             |
                PythonLexer
            
             / mercurial / thirdparty / attr / converters.py
          
                    History
                
                 |
                  Annotation
                 | Raw
                 |Copy content
                 |Copy permalink

      """

      Commonly useful converters.

      """

      from __future__ import absolute_import, division, print_function

      def optional(converter):

          """

          A converter that allows an attribute to be optional. An optional attribute

          is one which can be set to ``None``.

          :param callable converter: the converter that is used for non-``None``

              values.

          ..  versionadded:: 17.1.0

          """

          def optional_converter(val):

              if val is None:

                  return None

              return converter(val)

          return optional_converter

	Site-wide shortcuts
/	Use quick search box
g h	Goto home page
g g	Goto my private gists page
g G	Goto my public gists page
g 0-9	Goto bookmarked items from 0-9
n r	New repository page
n g	New gist page

	Repositories
g s	Goto summary page
g c	Goto changelog page
g f	Goto files page
g F	Goto files page with file search activated
g p	Goto pull requests page
g o	Goto repository settings
g O	Goto repository access permissions settings
t s	Toggle sidebar on some pages

				"""
				Commonly useful converters.
				"""

				from __future__ import absolute_import, division, print_function


				def optional(converter):
				"""
				A converter that allows an attribute to be optional. An optional attribute
				is one which can be set to ``None``.

				:param callable converter: the converter that is used for non-``None``
				values.

				.. versionadded:: 17.1.0
				"""

				def optional_converter(val):
				if val is None:
				return None
				return converter(val)

				return optional_converter