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Workaround for #5310: theano import error with recent NumPy #5316

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Jan 6, 2022
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Workaround for #5310: theano import error with recent NumPy #5316

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3 changes: 3 additions & 0 deletions RELEASE-NOTES.md
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+ The `pm.Distribution(testval=...)` kwarg was deprecated and will be replaced by `pm.Distribution(initval=...)`in `pymc >=4` (see [#5226](https://github.com/pymc-devs/pymc/pulls/5226)).
+ The `pm.sample(start=...)` kwarg was deprecated and will be replaced by `pm.sample(initvals=...)`in `pymc >=4` (see [#5226](https://github.com/pymc-devs/pymc/pulls/5226)).

### Bugfixes
+ A hotfix is applied on import to remain compatible with NumPy 1.22 (see [#5316](https://github.com/pymc-devs/pymc/pull/5316)).

## PyMC3 3.11.4 (20 August 2021)

### New Features
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22 changes: 22 additions & 0 deletions pymc3/__init__.py
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Expand Up @@ -18,8 +18,30 @@
import logging
import multiprocessing as mp
import platform
import warnings

import numpy.distutils
import semver

# Workaround for Theano bug that tries to access blas_opt_info;
# must be done before importing theano.
# https://github.com/pymc-devs/pymc/issues/5310
# Copied from theano/link/c/cmodule.py: default_blas_ldflags()
if (
hasattr(numpy.distutils, "__config__")
and numpy.distutils.__config__
and not hasattr(numpy.distutils.__config__, "blas_opt_info")
):
import numpy.distutils.system_info # noqa

# We need to catch warnings as in some cases NumPy print
# stuff that we don't want the user to see.
with warnings.catch_warnings(record=True):
numpy.distutils.system_info.system_info.verbosity = 0
blas_info = numpy.distutils.system_info.get_info("blas_opt")

numpy.distutils.__config__.blas_opt_info = blas_info

import theano

_log = logging.getLogger("pymc3")
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