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Add python_abi #10760

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Feb 5, 2020
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27 changes: 27 additions & 0 deletions recipes/python_abi/LICENSE
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Copyright (c) 2015-2018, conda-forge
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.

* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.

* Neither the name of staged-recipes nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
43 changes: 43 additions & 0 deletions recipes/python_abi/conda_build_config.yaml
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python_abi_tag:
- cp27mu # [linux]
- cp27m # [not linux]
- cp35m
- cp36m
- cp37m
- cp38
- pypy27_pp73
- pypy36_pp73

python_requirement:
- 2.7.*
- 3.5.*
- 3.6.*
- 3.7.*
- 3.8.*
- 2.7.* *_73_pypy
- 3.6.* *_73_pypy

python_version:
- 2.7
- 3.5
- 3.6
- 3.7
- 3.8
- 2.7
- 3.6

python_impl:
- cpython
- cpython
- cpython
- cpython
- cpython
- pypy
- pypy

zip_keys:
-
- python_abi_tag
- python_version
- python_requirement
- python_impl
32 changes: 32 additions & 0 deletions recipes/python_abi/meta.yaml
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package:
name: python_abi
version: {{ python_version }}

build:
number: 0
string: {{ python_abi_tag }}
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The typical drawback applies here: If you'd want to change/refine the dependencies in the future, a new build would have the same filename. You'd have to change the version number to something like x.y.z.0.custom_number (w/o relying on repodata patching).

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Any other suggestions?

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Doing the typical python_abi[build=*_abi] thing, i.e.,
h{{ PKG_HASH }}_{{ PKG_BUILDNUM }}_{{ python_abi_tag }}
(well {{ PKG_BUILDNUM }}_{{ python_abi_tag }} would also work since we don't have build deps).
Sure it's a little less convenient to have the user type python=3.8.2=*cp38 python=3.8.2=cp38, but at least we're more flexible then.

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Thanks. @jjhelmus, @msarahan, any particular idea that you like?

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We can make a metapackage cpython and pypy to make it easier for the user to switch.

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(They wouldn't be a requirement of any package, but they are just there for users to easily remember. Just like nomkl is)

track_features: pypy # [python_impl == "pypy"]
skip: True # [python_impl == "pypy"]

requirements:
run:
- python {{ python_requirement }}
run_constrained:
- pypy <0a0 # [python_impl == "cpython"]

test:
commands:
- python --version

about:
home: https://github.com/conda-forge/python_abi-feedstock
summary: Metapackage to select python implementation
license: BSD-3-Clause
license_family: BSD
license_file: LICENSE
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extra:
recipe-maintainers:
- isuruf
- jjhelmus
- mattip