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Document support for underscores in numeric literals #2336

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Jan 9, 2017
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Document support for underscores in numeric literals #2336

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5dc9294
Documment support for underscores in numeric literals
ilevkivskyi Oct 26, 2016
7429be6
Update typed_ast version
ddfisher Jan 9, 2017
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14 changes: 13 additions & 1 deletion docs/source/python36.rst
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Expand Up @@ -51,7 +51,19 @@ Underscores in numeric literals (`PEP 515 <https://www.python.org/dev/peps/pep-0
Python 3.6 feature: numeric literals can contain underscores,
e.g. ``1_000_000``.

Mypy does not yet support this.
Mypy fully supports this syntax:

.. code-block:: python

precise_val = 1_000_000.000_000_1
hexes: List[int] = []
hexes.append(0x_FF_FF_FF_FF)

.. note::

This requires the ``--fast-parser`` flag and it requires that the
`typed_ast <https://pypi.python.org/pypi/typed-ast>`_ package is
installed and has at least version 0.6.2. Use ``pip3 install -U typed_ast``.

Asynchronous generators (`PEP 525 <https://www.python.org/dev/peps/pep-0525>`_)
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