Metadata-Version: 2.1
Name: openPMD-api
Version: 0.13.0
Summary: C++ & Python API for Scientific I/O with openPMD
Home-page: https://www.openPMD.org
Author: Fabian Koller, Franz Poeschel, Axel Huebl
Author-email: f.koller@hzdr.de, f.poeschel@hzdr.de, axelhuebl@lbl.gov
Maintainer: Axel Huebl
Maintainer-email: axelhuebl@lbl.gov
License: UNKNOWN
Project-URL: Documentation, https://openpmd-api.readthedocs.io
Project-URL: Doxygen, https://www.openpmd.org/openPMD-api
Project-URL: Reference, https://doi.org/10.14278/rodare.27
Project-URL: Source, https://github.com/openPMD/openPMD-api
Project-URL: Tracker, https://github.com/openPMD/openPMD-api/issues
Description: 
        C++ & Python API for Scientific I/O with openPMD
        ================================================
        
        [![Supported openPMD Standard](https://img.shields.io/badge/openPMD-1.0.0--1.1.0-blue)](https://github.com/openPMD/openPMD-standard/releases)
        [![Doxygen](https://img.shields.io/badge/API-Doxygen-blue)](https://www.openpmd.org/openPMD-api)
        [![Gitter chat](https://img.shields.io/gitter/room/openPMD/API)](https://gitter.im/openPMD/API)
        ![Supported Platforms][api-platforms]
        [![License](https://img.shields.io/badge/license-LGPLv3-blue)](https://www.gnu.org/licenses/lgpl-3.0.html)
        [![DOI](https://rodare.hzdr.de/badge/DOI/10.14278/rodare.27.svg)](https://doi.org/10.14278/rodare.27)  
        [![CodeFactor](https://www.codefactor.io/repository/github/openpmd/openpmd-api/badge)](https://www.codefactor.io/repository/github/openpmd/openpmd-api)
        [![LGTM: C/C++](https://img.shields.io/lgtm/grade/cpp/g/openPMD/openPMD-api?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/openPMD/openPMD-api/context:cpp)
        [![LGTM: Python](https://img.shields.io/lgtm/grade/python/g/openPMD/openPMD-api?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/openPMD/openPMD-api/context:python)
        [![LGTM: Total alerts](https://img.shields.io/lgtm/alerts/g/openPMD/openPMD-api?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/openPMD/openPMD-api/alerts/)
        [![Coverage Status](https://coveralls.io/repos/github/openPMD/openPMD-api/badge)](https://coveralls.io/github/openPMD/openPMD-api)  
        [![Documentation Status](https://readthedocs.org/projects/openpmd-api/badge/?version=latest)](https://openpmd-api.readthedocs.io/en/latest/?badge=latest)
        [![Linux/OSX Build Status dev](https://travis-ci.com/openPMD/openPMD-api.svg?branch=dev)](https://travis-ci.com/openPMD/openPMD-api)
        [![Windows Build Status dev](https://ci.appveyor.com/api/projects/status/x95q4n620pqk0e0t/branch/dev?svg=true)](https://ci.appveyor.com/project/ax3l/openpmd-api/branch/dev)
        [![PyPI Wheel Release](https://github.com/openPMD/openPMD-api/workflows/wheels/badge.svg?branch=wheels&event=push)](https://github.com/openPMD/openPMD-api/actions?query=workflow%3Awheels)
        [![Nightly Packages Status](https://dev.azure.com/axelhuebl/openPMD-api/_apis/build/status/openPMD.openPMD-api?branchName=azure_install&label=nightly%20packages)](https://dev.azure.com/axelhuebl/openPMD-api/_build/latest?definitionId=1&branchName=azure_install)
        [![Coverity Scan Build Status](https://scan.coverity.com/projects/17602/badge.svg)](https://scan.coverity.com/projects/openpmd-openpmd-api)
        
        [api-platforms]: https://img.shields.io/badge/platforms-linux%20|%20osx%20|%20win-blue "Supported Platforms"
        
        openPMD is an open meta-data schema that provides meaning and self-description for data sets in science and engineering.
        See [the openPMD standard](https://github.com/openPMD/openPMD-standard) for details of this schema.
        
        This library provides a reference API for openPMD data handling.
        Since openPMD is a schema (or markup) on top of portable, hierarchical file formats, this library implements various backends such as HDF5, ADIOS1, ADIOS2 and JSON.
        Writing & reading through those backends and their associated files is supported for serial and [MPI-parallel](https://www.mpi-forum.org/docs/) workflows.
        
        ## Usage
        
        ### C++
        
        [![C++14][api-cpp]](https://isocpp.org/) ![C++14 API: Beta][dev-beta]
        
        [api-cpp]: https://img.shields.io/badge/language-C%2B%2B14-yellowgreen "C++14 API"
        [dev-beta]: https://img.shields.io/badge/phase-beta-yellowgreen "Status: Beta"
        
        ```cpp
        #include <openPMD/openPMD.hpp>
        #include <iostream>
        
        // ...
        
        auto s = openPMD::Series("samples/git-sample/data%T.h5", openPMD::Access::READ_ONLY);
        
        for( auto const& i : s.iterations ) {
            std::cout << "Iteration: " << i.first << "\n";
        
            for( auto const& m : i.second.meshes ) {
                std::cout << "  Mesh '" << m.first << "' attributes:\n";
                for( auto const& val : m.second.attributes() )
                    std::cout << "    " << val << '\n';
            }
        
            for( auto const& p : i.second.particles ) {
                std::cout << "  Particle species '" << p.first << "' attributes:\n";
                for( auto const& val : p.second.attributes() )
                    std::cout << "    " << val << '\n';
            }
        }
        ```
        
        ### Python
        
        [![Python3][api-py3]](https://www.python.org/) ![Python3 API: Beta][dev-beta]
        
        [api-py3]: https://img.shields.io/badge/language-Python3-yellowgreen "Python3 API"
        
        
        ```py
        import openpmd_api as io
        
        # ...
        
        series = io.Series("samples/git-sample/data%T.h5", io.Access.read_only)
        
        for k_i, i in series.iterations.items():
            print("Iteration: {0}".format(k_i))
        
            for k_m, m in i.meshes.items():
                print("  Mesh '{0}' attributes:".format(k_m))
                for a in m.attributes:
                    print("    {0}".format(a))
        
            for k_p, p in i.particles.items():
                print("  Particle species '{0}' attributes:".format(k_p))
                for a in p.attributes:
                    print("    {0}".format(a))
        ```
        
        ### More!
        
        Curious?
        Our manual shows full [read & write examples](https://openpmd-api.readthedocs.io/en/latest/usage/firstwrite.html), both serial and MPI-parallel!
        
        ## Dependencies
        
        Required:
        * CMake 3.15.0+
        * C++14 capable compiler, e.g. g++ 5.0+, clang 5.0+, VS 2017+
        
        Shipped internally in `share/openPMD/thirdParty/`:
        * [MPark.Variant](https://github.com/mpark/variant) 1.4.0+ ([BSL-1.0](https://github.com/mpark/variant/blob/master/LICENSE.md))
        * [Catch2](https://github.com/catchorg/Catch2) 2.6.1+ ([BSL-1.0](https://github.com/catchorg/Catch2/blob/master/LICENSE.txt))
        * [pybind11](https://github.com/pybind/pybind11) 2.6.1+ ([new BSD](https://github.com/pybind/pybind11/blob/master/LICENSE))
        * [NLohmann-JSON](https://github.com/nlohmann/json) 3.9.1+ ([MIT](https://github.com/nlohmann/json/blob/develop/LICENSE.MIT))
        
        I/O backends:
        * [JSON](https://en.wikipedia.org/wiki/JSON)
        * [HDF5](https://support.hdfgroup.org/HDF5) 1.8.13+ (optional)
        * [ADIOS1](https://www.olcf.ornl.gov/center-projects/adios) 1.13.1+ (optional)
        * [ADIOS2](https://github.com/ornladios/ADIOS2) 2.6.0+ (optional)
        
        while those can be built either with or without:
        * MPI 2.1+, e.g. OpenMPI 1.6.5+ or MPICH2
        
        Optional language bindings:
        * Python:
          * Python 3.6 - 3.9
          * pybind11 2.6.1+
          * numpy 1.15+
          * mpi4py 2.1+
        
        ## Installation
        
        [![Spack Package](https://img.shields.io/badge/spack.io-openpmd--api-brightgreen)](https://spack.readthedocs.io/en/latest/package_list.html#openpmd-api)
        [![Conda Package](https://img.shields.io/badge/conda.io-openpmd--api-brightgreen)](https://anaconda.org/conda-forge/openpmd-api)
        [![Brew Package](https://img.shields.io/badge/brew.sh-openpmd--api-brightgreen)](https://github.com/openPMD/homebrew-openPMD)
        [![PyPI Package](https://img.shields.io/badge/pypi.org-openpmd--api-brightgreen)](https://pypi.org/project/openPMD-api)
        [![From Source](https://img.shields.io/badge/from_source-CMake-brightgreen)](https://cmake.org)
        
        Our community loves to help each other.
        Please [report installation problems](https://github.com/openPMD/openPMD-api/issues/new?labels=install&template=install_problem.md) in case you should get stuck.
        
        Choose *one* of the install methods below to get started:
        
        ### [Spack](https://spack.io)
        
        [![Spack Version](https://img.shields.io/spack/v/openpmd-api)](https://spack.readthedocs.io/en/latest/package_list.html#openpmd-api)
        [![Spack Platforms](https://img.shields.io/badge/platforms-linux%20|%20osx%20-blue)](https://spack.io)
        [![Spack Use Case](https://img.shields.io/badge/use_case-desktop_%28C%2B%2B,_py%29,_development,_HPC-brightgreen)](https://spack.readthedocs.io/en/latest/package_list.html#openpmd-api)
        
        ```bash
        # optional:               +python +adios1 -adios2 -hdf5 -mpi
        spack install openpmd-api
        spack load -r openpmd-api
        ```
        
        ### [Conda](https://conda.io)
        
        [![Conda Version](https://img.shields.io/conda/vn/conda-forge/openpmd-api)](https://anaconda.org/conda-forge/openpmd-api)
        [![Conda Platforms](https://img.shields.io/badge/platforms-linux%20|%20osx%20|%20win-blue)](https://anaconda.org/conda-forge/openpmd-api)
        [![Conda Use Case](https://img.shields.io/badge/use_case-desktop_%28py%29-brightgreen)](https://anaconda.org/conda-forge/openpmd-api)
        [![Conda Downloads](https://img.shields.io/conda/dn/conda-forge/openpmd-api)](https://anaconda.org/conda-forge/openpmd-api)
        
        ```bash
        # optional:                      OpenMPI support  =*=mpi_openmpi*
        # optional:                        MPICH support  =*=mpi_mpich*
        conda create -n openpmd -c conda-forge openpmd-api
        conda activate openpmd
        ```
        
        ### [Brew](https://brew.sh)
        
        [![Brew Version](https://img.shields.io/badge/brew-latest_version-orange)](https://github.com/openPMD/homebrew-openPMD)
        [![Brew Platforms](https://img.shields.io/badge/platforms-linux%20|%20osx%20-blue)](https://docs.brew.sh/Homebrew-on-Linux)
        [![Brew Use Case](https://img.shields.io/badge/use_case-desktop_%28C%2B%2B,_py%29-brightgreen)](https://brew.sh)
        
        ```bash
        brew tap openpmd/openpmd
        brew install openpmd-api
        ```
        
        ### [PyPI](https://pypi.org)
        
        [![PyPI Version](https://img.shields.io/pypi/v/openPMD-api)](https://pypi.org/project/openPMD-api)
        [![PyPI Platforms](https://img.shields.io/badge/platforms-linux%20|%20osx%20|%20win-blue)](https://pypi.org/project/openPMD-api/#files)
        [![PyPI Use Case](https://img.shields.io/badge/use_case-desktop_%28py%29-brightgreen)](https://pypi.org/project/openPMD-api)
        [![PyPI Format](https://img.shields.io/pypi/format/openPMD-api)](https://pypi.org/project/openPMD-api)
        [![PyPI Downloads](https://img.shields.io/pypi/dm/openPMD-api)](https://pypi.org/project/openPMD-api)
        
        On very old macOS versions (<10.9) or on exotic processor architectures, this install method *compiles from source* against the found installations of HDF5, ADIOS1, ADIOS2, and/or MPI (in system paths, from other package managers, or loaded via a module system, ...).
        
        ```bash
        # we need pip 19 or newer
        # optional:                   --user
        python3 -m pip install -U pip
        
        # optional:                        --user
        python3 -m pip install openpmd-api
        ```
        
        If MPI-support shall be enabled, we always have to recompile:
        ```bash
        # optional:                                    --user
        python3 -m pip install -U pip setuptools wheel
        python3 -m pip install -U cmake
        
        # optional:                                                                   --user
        openPMD_USE_MPI=ON python3 -m pip install openpmd-api --no-binary openpmd-api
        ```
        
        ### From Source
        
        [![Source Use Case](https://img.shields.io/badge/use_case-development-brightgreen)](https://cmake.org)
        
        openPMD-api can also be built and installed from source using [CMake](https://cmake.org/):
        
        ```bash
        git clone https://github.com/openPMD/openPMD-api.git
        
        mkdir openPMD-api-build
        cd openPMD-api-build
        
        # optional: for full tests, with unzip
        ../openPMD-api/share/openPMD/download_samples.sh
        
        # for own install prefix append:
        #   -DCMAKE_INSTALL_PREFIX=$HOME/somepath
        # for options append:
        #   -DopenPMD_USE_...=...
        # e.g. for python support add:
        #   -DopenPMD_USE_PYTHON=ON
        cmake ../openPMD-api
        
        cmake --build .
        
        # optional
        ctest
        
        # sudo might be required for system paths
        cmake --build . --target install
        ```
        
        The following options can be added to the `cmake` call to control features.
        CMake controls options with prefixed `-D`, e.g. `-DopenPMD_USE_MPI=OFF`:
        
        | CMake Option                 | Values           | Description                                                                  |
        |------------------------------|------------------|------------------------------------------------------------------------------|
        | `openPMD_USE_MPI`            | **AUTO**/ON/OFF  | Parallel, Multi-Node I/O for clusters                                        |
        | `openPMD_USE_HDF5`           | **AUTO**/ON/OFF  | HDF5 backend (`.h5` files)                                                   |
        | `openPMD_USE_ADIOS1`         | **AUTO**/ON/OFF  | ADIOS1 backend (`.bp` files up to version BP3)                               |
        | `openPMD_USE_ADIOS2`         | **AUTO**/ON/OFF  | ADIOS2 backend (`.bp` files in BP3, BP4 or higher)                           |
        | `openPMD_USE_PYTHON`         | **AUTO**/ON/OFF  | Enable Python bindings                                                       |
        | `openPMD_USE_INVASIVE_TESTS` | ON/**OFF**       | Enable unit tests that modify source code <sup>1</sup>                       |
        | `openPMD_USE_VERIFY`         | **ON**/OFF       | Enable internal VERIFY (assert) macro independent of build type <sup>2</sup> |
        | `openPMD_INSTALL`            | **ON**/OFF       | Add installation targets                                                     |
        | `Python_EXECUTABLE`          | (newest found)   | Path to Python executable                                                    |
        
        <sup>1</sup> *e.g. changes C++ visibility keywords, breaks MSVC*
        <sup>2</sup> *this includes most pre-/post-condition checks, disabling without specific cause is highly discouraged*
        
        Additionally, the following libraries are shipped internally.
        The following options allow to switch to external installs:
        
        | CMake Option                    | Values     | Library       | Version |
        |---------------------------------|------------|---------------|---------|
        | `openPMD_USE_INTERNAL_VARIANT`  | **ON**/OFF | MPark.Variant |  1.4.0+ |
        | `openPMD_USE_INTERNAL_CATCH`    | **ON**/OFF | Catch2        |  2.6.1+ |
        | `openPMD_USE_INTERNAL_PYBIND11` | **ON**/OFF | pybind11      |  2.6.1+ |
        | `openPMD_USE_INTERNAL_JSON`     | **ON**/OFF | NLohmann-JSON |  3.9.1+ |
        
        By default, this will build as a shared library (`libopenPMD.[so|dylib|dll]`) and installs also its headers.
        In order to build a static library, append `-DBUILD_SHARED_LIBS=OFF` to the `cmake` command.
        You can only build a static or a shared library at a time.
        
        By default, the `Release` version is built.
        In order to build with debug symbols, pass `-DCMAKE_BUILD_TYPE=Debug` to your `cmake` command.
        
        By default, tests, examples and command line tools are built.
        In order to skip building those, pass `-DBUILD_TESTING=OFF`, `-DBUILD_EXAMPLES=OFF`, or `-DBUILD_CLI_TOOLS=OFF` to your `cmake` command.
        
        ## Linking to your project
        
        The install will contain header files and libraries in the path set with `-DCMAKE_INSTALL_PREFIX`.
        
        ### CMake
        
        If your project is using CMake for its build, one can conveniently use our provided `openPMDConfig.cmake` package which is installed alongside the library.
        
        First set the following environment hint if openPMD-api was *not* installed in a system path:
        
        ```bash
        # optional: only needed if installed outside of system paths
        export CMAKE_PREFIX_PATH=$HOME/somepath:$CMAKE_PREFIX_PATH
        ```
        
        Use the following lines in your project's `CMakeLists.txt`:
        ```cmake
        # supports:                       COMPONENTS MPI NOMPI HDF5 ADIOS1 ADIOS2
        find_package(openPMD 0.9.0 CONFIG)
        
        if(openPMD_FOUND)
            target_link_libraries(YourTarget PRIVATE openPMD::openPMD)
        endif()
        ```
        
        *Alternatively*, add the openPMD-api repository source directly to your project and use it via:
        ```cmake
        add_subdirectory("path/to/source/of/openPMD-api")
        
        target_link_libraries(YourTarget PRIVATE openPMD::openPMD)
        ```
        
        For development workflows, you can even automatically download and build openPMD-api from within a depending CMake project.
        Just replace the `add_subdirectory` call with:
        ```cmake
        include(FetchContent)
        set(CMAKE_POLICY_DEFAULT_CMP0077 NEW)
        set(BUILD_CLI_TOOLS OFF)
        set(BUILD_EXAMPLES OFF)
        set(BUILD_TESTING OFF)
        set(openPMD_INSTALL ${BUILD_SHARED_LIBS})  # e.g. only install if used as shared library
        set(openPMD_USE_PYTHON OFF)
        FetchContent_Declare(openPMD
          GIT_REPOSITORY "https://github.com/openPMD/openPMD-api.git"
          GIT_TAG        "dev")
        FetchContent_MakeAvailable(openPMD)
        ```
        
        ### Manually
        
        If your (Linux/OSX) project is build by calling the compiler directly or uses a manually written `Makefile`, consider using our `openPMD.pc` helper file for `pkg-config` which are installed alongside the library.
        
        First set the following environment hint if openPMD-api was *not* installed in a system path:
        
        ```bash
        # optional: only needed if installed outside of system paths
        export PKG_CONFIG_PATH=$HOME/somepath/lib/pkgconfig:$PKG_CONFIG_PATH
        ```
        
        Additional linker and compiler flags for your project are available via:
        ```bash
        # switch to check if openPMD-api was build as static library
        # (via BUILD_SHARED_LIBS=OFF) or as shared library (default)
        if [ "$(pkg-config --variable=static openPMD)" == "true" ]
        then
            pkg-config --libs --static openPMD
            # -L/usr/local/lib -L/usr/lib/x86_64-linux-gnu/openmpi/lib -lopenPMD -pthread /usr/lib/libmpi.so -pthread /usr/lib/x86_64-linux-gnu/openmpi/lib/libmpi_cxx.so /usr/lib/libmpi.so /usr/lib/x86_64-linux-gnu/hdf5/openmpi/libhdf5.so /usr/lib/x86_64-linux-gnu/libsz.so /usr/lib/x86_64-linux-gnu/libz.so /usr/lib/x86_64-linux-gnu/libdl.so /usr/lib/x86_64-linux-gnu/libm.so -pthread /usr/lib/libmpi.so -pthread /usr/lib/x86_64-linux-gnu/openmpi/lib/libmpi_cxx.so /usr/lib/libmpi.so
        else
            pkg-config --libs openPMD
            # -L${HOME}/somepath/lib -lopenPMD
        fi
        
        pkg-config --cflags openPMD
        # -I${HOME}/somepath/include
        ```
        
        ## Author Contributions
        
        openPMD-api is developed by many people.
        It was initially started by the [Computational Radiation Physics Group](https://hzdr.de/crp) at [HZDR](https://www.hzdr.de/) as successor to [libSplash](https://github.com/ComputationalRadiationPhysics/libSplash/), generalizing the [successful HDF5 & ADIOS1 implementations](https://arxiv.org/abs/1706.00522) in [PIConGPU](https://github.com/ComputationalRadiationPhysics/picongpu).
        The following people and institutions [contributed](https://github.com/openPMD/openPMD-api/graphs/contributors) to openPMD-api:
        
        * [Axel Huebl (HZDR, now LBNL)](https://github.com/ax3l):
          project lead, releases, documentation, automated CI/CD, Python bindings, installation & packaging, prior reference implementations
        * [Fabian Koller (HZDR)](https://github.com/C0nsultant):
          initial library design and implementation with HDF5 & ADIOS1 backend
        * [Franz Poeschel (CASUS)](https://github.com/franzpoeschel):
          added JSON & ADIOS2 backend, data staging/streaming
        * [Junmin Gu (LBNL)](https://github.com/guj):
          non-collective parallel I/O fixes, ADIOS improvements, benchmarks
        
        Further thanks go to improvements and contributions from:
        
        * [Carsten Fortmann-Grote (EU XFEL GmbH, now MPI-EvolBio)](https://github.com/CFGrote):
          draft of our Python unit tests
        * [Dominik Stańczak (Warsaw University of Technology)](https://github.com/StanczakDominik):
          documentation improvements
        * [Ray Donnelly (Anaconda, Inc.)](https://github.com/mingwandroid):
          support on conda packaging and libc++ quirks
        * [James Amundson (FNAL)](https://github.com/amundson):
          compile fix for newer compilers
        * [René Widera (HZDR)](https://github.com/psychocoderHPC):
          design improvements for initial API design
        * [Erik Zenker (HZDR)](https://github.com/erikzenker):
          design improvements for initial API design
        * [Sergei Bastrakov (HZDR)](https://github.com/sbastrakov):
          documentation improvements (windows)
        * [Rémi Lehe (LBNL)](https://github.com/RemiLehe):
          package integration testing on macOS and Linux
        * [Lígia Diana Amorim (LBNL)](https://github.com/LDAmorim):
          package integration testing on macOS
        * [Kseniia Bastrakova (HZDR)](https://github.com/KseniaBastrakova):
          compatibility testing
        * [Richard Pausch (HZDR)](https://github.com/PrometheusPi):
          compatibility testing, documentation improvements
        * [Paweł Ordyna (HZDR)](https://github.com/pordyna):
          report on NVCC warnings
        
        ### Grants
        
        The openPMD-api authors acknowledge support via the following programs.
        This project has received funding from the European Unions Horizon 2020 research and innovation programme under grant agreement No 654220.
        Supported by the Consortium for Advanced Modeling of Particles Accelerators (CAMPA), funded by the U.S. DOE Office of Science under Contract No. DE-AC02-05CH11231.
        Supported by the Exascale Computing Project (17-SC-20-SC), a collaborative effort of two U.S. Department of Energy organizations (Office of Science and the National Nuclear Security Administration).
        This work was partially funded by the Center of Advanced Systems Understanding (CASUS), which is financed by Germany's Federal Ministry of Education and Research (BMBF) and by the Saxon Ministry for Science, Culture and Tourism (SMWK) with tax funds on the basis of the budget approved by the Saxon State Parliament.
        
        ### Transitive Contributions
        
        openPMD-api stands on the shoulders of giants and we are grateful for the following projects included as direct dependencies:
        
        * [ADIOS1](https://github.com/ornladios/ADIOS) and [ADIOS2](https://github.com/ornladios/ADIOS2) by [S. Klasky (ORNL), team, collaborators](https://csmd.ornl.gov/adios) and [contributors](https://github.com/ornladios/ADIOS2/graphs/contributors)
        * [Catch2](https://github.com/catchorg/Catch2) by [Phil Nash](https://github.com/philsquared), [Martin Hořeňovský](https://github.com/horenmar) and [contributors](https://github.com/catchorg/Catch2/graphs/contributors)
        * HDF5 by [the HDF group](https://www.hdfgroup.org) and community
        * [json](https://github.com/nlohmann/json) by [Niels Lohmann](https://github.com/nlohmann) and [contributors](https://github.com/nlohmann/json/graphs/contributors)
        * [pybind11](https://github.com/pybind/pybind11) by [Wenzel Jakob (EPFL)](https://github.com/wjakob) and [contributors](https://github.com/pybind/pybind11/graphs/contributors)
        * all contributors to the evolution of modern C++ and early library preview developers, e.g. [Michael Park (Facebook)](https://github.com/mpark)
        * the [CMake build system](https://cmake.org) and [contributors](https://github.com/Kitware/CMake/blob/master/Copyright.txt)
        * packaging support by the [conda-forge](https://conda-forge.org), [PyPI](https://pypi.org) and [Spack](https://spack.io) communities, among others
        * the [openPMD-standard](https://github.com/openPMD/openPMD-standard) by [Axel Huebl (HZDR, now LBNL)](https://github.com/ax3l) and [contributors](https://github.com/openPMD/openPMD-standard/blob/latest/AUTHORS.md)
        
        
Keywords: openPMD openscience hdf5 adios mpi hpc research file-format file-handling
Platform: UNKNOWN
Classifier: Development Status :: 4 - Beta
Classifier: Natural Language :: English
Classifier: Environment :: Console
Classifier: Intended Audience :: Science/Research
Classifier: Operating System :: OS Independent
Classifier: Topic :: Scientific/Engineering
Classifier: Topic :: Database :: Front-Ends
Classifier: Programming Language :: C++
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.6
Classifier: Programming Language :: Python :: 3.7
Classifier: Programming Language :: Python :: 3.8
Classifier: Programming Language :: Python :: 3.9
Classifier: License :: OSI Approved :: GNU Lesser General Public License v3 or later (LGPLv3+)
Requires-Python: >=3.6, <3.10
Description-Content-Type: text/markdown
