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add note on symbols to currency docs #2023

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Jun 22, 2024
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add note on symbols to currency docs #2023

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add note on symbols to currency docs
andrewgsavage Jun 22, 2024
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add note on symbols to currency docs
andrewgsavage Jun 22, 2024
3297ab1
add note on symbols to currency docs
andrewgsavage Jun 22, 2024
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13 changes: 13 additions & 0 deletions docs/advanced/currencies.rst
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Expand Up @@ -84,3 +84,16 @@ currency on its own dimension, and then implement transformations::
More sophisticated formulas, e.g. dealing with flat fees and thresholds, can be
implemented with arbitrary python code by programmatically defining a context (see
:ref:`contexts`).

Currency Symbols
----------------

Many common currency symbols are not supported by the pint parser. A preprocessor can be used as a workaround:

.. doctest::

>>> import pint
>>> ureg = pint.UnitRegistry(preprocessors = [lambda s: s.replace("€", "EUR")])
>>> ureg.define("euro = [currency] = € = EUR")
>>> print(ureg.Quantity("1 €"))
1 euro
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