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bpo-31571: Remove duplicated info in Lexical Analysis documentation (GH-3691) 

- Remove the second mention about the `u` prefix
- Remove the second mention about numeric literals do not include a sign
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Guilherme Caminha 2017-09-25 20:16:54 -03:00 committed by Mariatta
parent 81108375d9
commit 4a2d00cb45
1 changed files with 0 additions and 7 deletions
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Doc/reference/lexical_analysis.rst
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@ -446,9 +446,6 @@ instance of the :class:`bytes` type instead of the :class:`str` type. They
may only contain ASCII characters; bytes with a numeric value of 128 or greater may only contain ASCII characters; bytes with a numeric value of 128 or greater
must be expressed with escapes. must be expressed with escapes.
As of Python 3.3 it is possible again to prefix string literals with a
``u`` prefix to simplify maintenance of dual 2.x and 3.x codebases.
Both string and bytes literals may optionally be prefixed with a letter ``'r'`` Both string and bytes literals may optionally be prefixed with a letter ``'r'``
or ``'R'``; such strings are called :dfn:`raw strings` and treat backslashes as or ``'R'``; such strings are called :dfn:`raw strings` and treat backslashes as
literal characters. As a result, in string literals, ``'\U'`` and ``'\u'`` literal characters. As a result, in string literals, ``'\U'`` and ``'\u'``
@ -799,10 +796,6 @@ Some examples of floating point literals::
3.14 10. .001 1e100 3.14e-10 0e0 3.14_15_93 3.14 10. .001 1e100 3.14e-10 0e0 3.14_15_93
Note that numeric literals do not include a sign; a phrase like ``-1`` is
actually an expression composed of the unary operator ``-`` and the literal
``1``.
.. versionchanged:: 3.6 .. versionchanged:: 3.6
Underscores are now allowed for grouping purposes in literals. Underscores are now allowed for grouping purposes in literals.