grpc/src/python/grpcio
Xuan Wang c910004328 [Python Stub] Add version check to stubs generated by grpcio_tools (#35906)
The stubs generated by grpcio_tools should always be used with [the same or higher version of grpcio](https://github.com/grpc/grpc/blob/master/tools/distrib/python/grpcio_tools/setup.py#L313), this change will add a run time check for this requirement inside the generated stubs and therefor enforce this requirement.

Please note for now we're just printing a warning for incorrect usage, we'll **change it to an error** soon.

Example warning message:
```
/usr/local/google/home/xuanwn/workspace/misc/grpc/examples/python/helloworld/helloworld_pb2_grpc.py:21: RuntimeWarning: The grpc package installed is at version 1.60.1, but the generated code in helloworld_pb2_grpc.py depends on grpcio>=1.63.0.dev0. Please upgrade your grpc module to grpcio>=1.63.0.dev0 or downgrade your generated code using grpcio-tools<=1.60.1. This warning will become an error in 1.64.0, scheduled for release on May 14,2024.
```
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Closes #35906

PiperOrigin-RevId: 615659471
2024-03-13 22:47:01 -07:00
..
grpc [Python Stub] Add version check to stubs generated by grpcio_tools (#35906) 2024-03-13 22:47:01 -07:00
.gitignore Revert "Merge branch 'master' into v1.3.x" 2017-04-26 14:18:39 -07:00
README.rst [Python Modernization] Deprecate pkg_resources (#35849) 2024-02-14 16:44:42 -08:00
_parallel_compile_patch.py [Python Misc] Use template to generate _parallel_compile_patch.py (#34847) 2023-12-12 11:00:34 -08:00
_spawn_patch.py Internal change 2023-12-13 20:06:30 -08:00
commands.py [CI] Updated by review (#36083) 2024-03-08 12:49:57 -08:00
grpc_core_dependencies.py [grpc][Gpr_To_Absl_Logging] Using absl from within gpr logging (#36108) 2024-03-13 22:04:47 -07:00
grpc_version.py [Release] Bump version to 1.63.0-dev (on master branch) (#35899) 2024-02-13 16:09:36 -08:00
support.py [Python setuptools] Import error from distutils for lower version of setuptools (#35561) 2024-01-18 10:35:38 -08:00

README.rst

gRPC Python
===========

|compat_check_pypi|

Package for gRPC Python.

.. |compat_check_pypi| image:: https://python-compatibility-tools.appspot.com/one_badge_image?package=grpcio
   :target: https://python-compatibility-tools.appspot.com/one_badge_target?package=grpcio

Supported Python Versions
-------------------------
Python >= 3.7

Installation
------------

gRPC Python is available for Linux, macOS, and Windows.

Installing From PyPI
~~~~~~~~~~~~~~~~~~~~

If you are installing locally...

::

  $ pip install grpcio

Else system wide (on Ubuntu)...

::

  $ sudo pip install grpcio

If you're on Windows make sure that you installed the :code:`pip.exe` component
when you installed Python (if not go back and install it!) then invoke:

::

  $ pip.exe install grpcio

Windows users may need to invoke :code:`pip.exe` from a command line ran as
administrator.

n.b. On Windows and on Mac OS X one *must* have a recent release of :code:`pip`
to retrieve the proper wheel from PyPI. Be sure to upgrade to the latest
version!

Installing From Source
~~~~~~~~~~~~~~~~~~~~~~

Building from source requires that you have the Python headers (usually a
package named :code:`python-dev`).

::

  $ export REPO_ROOT=grpc  # REPO_ROOT can be any directory of your choice
  $ git clone -b RELEASE_TAG_HERE https://github.com/grpc/grpc $REPO_ROOT
  $ cd $REPO_ROOT
  $ git submodule update --init

  # For the next two commands do `sudo pip install` if you get permission-denied errors
  $ pip install -r requirements.txt
  $ GRPC_PYTHON_BUILD_WITH_CYTHON=1 pip install .

You cannot currently install Python from source on Windows. Things might work
out for you in MSYS2 (follow the Linux instructions), but it isn't officially
supported at the moment.

Troubleshooting
~~~~~~~~~~~~~~~

Help, I ...

* **... see the following error on some platforms**

  ::

    /tmp/pip-build-U8pSsr/cython/Cython/Plex/Scanners.c:4:20: fatal error: Python.h: No such file or directory
    #include "Python.h"
                    ^
    compilation terminated.

  You can fix it by installing `python-dev` package. i.e

  ::

    sudo apt-get install python-dev