From cd04e9b702ab50e47b9a84ca0777961cf0df058b Mon Sep 17 00:00:00 2001 From: jesse Date: Mon, 16 Mar 2015 15:15:59 -0700 Subject: rename python README, and fix markdown in java and python respectively --- python/README.md | 111 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 111 insertions(+) create mode 100644 python/README.md (limited to 'python/README.md') diff --git a/python/README.md b/python/README.md new file mode 100644 index 00000000..ee7e7213 --- /dev/null +++ b/python/README.md @@ -0,0 +1,111 @@ +Protocol Buffers - Google's data interchange format +=================================================== + +[![Build Status](https://travis-ci.org/google/protobuf.svg?branch=master)](https://travis-ci.org/google/protobuf) + +Copyright 2008 Google Inc. + +This directory contains the Python Protocol Buffers runtime library. + +Normally, this directory comes as part of the protobuf package, available +from: + + https://developers.google.com/protocol-buffers/ + +The complete package includes the C++ source code, which includes the +Protocol Compiler (protoc). If you downloaded this package from PyPI +or some other Python-specific source, you may have received only the +Python part of the code. In this case, you will need to obtain the +Protocol Compiler from some other source before you can use this +package. + +Development Warning +=================== + +The Python implementation of Protocol Buffers is not as mature as the C++ +and Java implementations. It may be more buggy, and it is known to be +pretty slow at this time. If you would like to help fix these issues, +join the Protocol Buffers discussion list and let us know! + +Installation +============ + +1) Make sure you have Python 2.6 or newer. If in doubt, run: + + $ python -V + +2) If you do not have setuptools installed, note that it will be + downloaded and installed automatically as soon as you run setup.py. + If you would rather install it manually, you may do so by following + the instructions on this page: + + https://packaging.python.org/en/latest/installing.html#setup-for-installing-packages + +3) Build the C++ code, or install a binary distribution of protoc. If + you install a binary distribution, make sure that it is the same + version as this package. If in doubt, run: + + $ protoc --version + +4) Build and run the tests: + + $ python setup.py build + $ python setup.py google_test + + If you want to build/test c++ implementation, run: + $ python setup.py build --cpp_implementation + $ python setup.py google_test --cpp_implementation + + If some tests fail, this library may not work correctly on your + system. Continue at your own risk. + + Please note that there is a known problem with some versions of + Python on Cygwin which causes the tests to fail after printing the + error: "sem_init: Resource temporarily unavailable". This appears + to be a bug either in Cygwin or in Python: + http://www.cygwin.com/ml/cygwin/2005-07/msg01378.html + We do not know if or when it might me fixed. We also do not know + how likely it is that this bug will affect users in practice. + +5) Install: + + $ python setup.py install + + or: + + $ python setup.py install --cpp_implementation + + This step may require superuser privileges. + NOTE: To use C++ implementation, you need to install C++ protobuf runtime + library of the same version and export the environment variable before this + step. See the "C++ Implementation" section below for more details. + +Usage +===== + +The complete documentation for Protocol Buffers is available via the +web at: + + https://developers.google.com/protocol-buffers/ + +C++ Implementation +================== + +The C++ implementation for Python messages is built as a Python extension to +improve the overall protobuf Python performance. + +To use the C++ implementation, you need to: +1) Install the C++ protobuf runtime library, please see instructions in the + parent directory. +2) Export an environment variable: + + $ export PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION=cpp + $ export PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION_VERSION=2 + +You need to export this variable before running setup.py script to build and +install the extension. You must also set the variable at runtime, otherwise +the pure-Python implementation will be used. In a future release, we will +change the default so that C++ implementation is used whenever it is available. +It is strongly recommended to run `python setup.py test` after setting the +variable to "cpp", so the tests will be against C++ implemented Python +messages. -- cgit v1.2.3