Rpy2

=============

Bugs fixed
----------

- :class:`rpy2.rlike.container.OrdDict` objects were triggering an
error when unpickled (PR 955).

- Function signature mapping not longer assumes that all default
values are R vectors mapped to a `Vector` instance (PR 954).

=============

New features
------------

- For ipython and Jupyter notebooks, R "magics" accepting optional input arguments
(`-i` or `--input`) can now be of form `<python-name>` or
`<r-name>=<python-name>`. The former is the way is has been working so far:
the R object is given the name of the Python object. The latter allows to
specify the name under which the input object will be known to R. In addition
to that the python name can optionally be a path, that is a name nested in a
sequence of namespaces. For example, `-i module.varname`. The magics
concerned are `%R`, `%%R`, and `%Rpush` (issues 934 and 935).

- For ipython and Jupyter notebooks, R "magics" accepting an optional conversion
argument (`-c/--converter`) now also accepts names that are a path in Python,
that is a name nested in a sequence of namespaces. For example,
`-c rpy2.robjects.default_converter` (issue 934).

- The "magic" `%Rpush` accepts an optional argument `-c/--converter` that is
similar in nature to the argument of the same name in `%R` and `%%R`.

Bugs fixed
----------

- :class:`rpy2.rlike.container.TaggedList` objects were triggering an error when unpickled (issue 947).

- Converting :class:`pandas.Series` of type `"object"` with a fallback
to R strings no longer fails with an error (issue 916).

Changes
-------

- :meth:`rpy2.robjects.help.Page.iteritems` is deprecated. Use the method `items()` instead.

- Calling :func:`str` on rpy2 objects that are proxies of R objects is now
using R's `print()` whenever R's `show()` results in an error (issue 908).

=============

New features
------------

- :func:`rpy2.rinterface.rternalize` can optionally mirror more accurately in R
the function signature defined in Python (issue 905).

Bugs fixed
----------

- Better handling of timezone in :class:`rpy2.robjects.vectors.POSIXct`
(issue 917).

- :mod:`pandas` conversion is now correctly handling R data frames with duplicated
column names. They were dropped tbefore that (issue 925).

- :mod:`pandas` conversion is now correctly handling R data frames with nested
columns (issue 930).

- Importing :mod:`rpy2.ipython.rmagic` while :mod:`pandas` is not installed resulted
in an error.


Changes
-------

- :func:`rpy2.robjects.methods.getclassdef` is now explicitly
naming the optional argument with the R package name when calling
the underlying R function.

- The `%R` line magic for ipython/jupyter was trying to substitute anything
after a dolar (`$`) sign, which caused issue since this character is
used to access by name elements in R containers. No substitution
is happening anymore (issue 922).

=============

Bugs fixed
----------

- Pandas converter no longer fails with arrays of `dtype`
:class:`pandas.BoolDtype` or :class:`pandas.Float64Dtype`.(issue 880).

- Numpy and pandas conversion could fail an R object is a low-level wrapper
for an R list (issue 890).

- Fixed detection of the R install path on Windows (issues 875 and 885).

- Fixed error with dynamic docstring generation for functions
without arguments (issue 903).

- Fixed error with dynamic docstring generation when R functions
are missing the section 'Details' (isue 902).

=============

New features
------------

- The string representation for :class:`rpy2.robjects.conversion.Converter`
objects lists classes the converter will dispatch on.

Bugs fixed
----------

- :meth:`rpy2.robjects.vectors.FactorVector.iter_labels` was failing if
any element is NA (issue 879).

- The definition of converters was not thread-safe. The fix deprecates
the use of :obj:`rpy2.robjects.conversion.converter` and replaces it
with :func:`rpy2.robjects.conversion.get_conversion`.

=============

Bugs fixed
----------

- Fix `__setitem__` on R list when the value is a simple Python object with
a default low-level conversion (issue 864).

- The default converter for the rmagic could fail with a
:class:`RecursionError` (issue 866).