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Diffstat (limited to 'python/README.txt')
| -rw-r--r-- | python/README.txt | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/python/README.txt b/python/README.txt index 73a26566..6dc144e9 100644 --- a/python/README.txt +++ b/python/README.txt @@ -63,9 +63,9 @@ Installation $ python setup.py install This step may require superuser privileges. - NOTE: To use C++ implementation, you need to export the environment variable - before this step. See the "C++ Implementation" section below for more - details. + 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 ===== @@ -83,7 +83,10 @@ WARNING: This is EXPERIMENTAL and only available for CPython platforms. The C++ implementation for Python messages is built as a Python extension to improve the overall protobuf Python performance. -To use the C++ implementation, export an environment variable: +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 |