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-# Install TensorFlow on Raspbian
-
-This guide explains how to install TensorFlow on a Raspberry Pi running
-Raspbian. Although these instructions might also work on other Pi variants, we
-have only tested (and we only support) these instructions on machines meeting
-the following requirements:
-
-* Raspberry Pi devices running Raspbian 9.0 or higher
-
-## Determine how to install TensorFlow
-
-You must pick the mechanism by which you install TensorFlow. The supported
-choices are as follows:
-
-* "Native" pip.
-* Cross-compiling from sources.
-
-**We recommend pip installation.**
-
-## Installing with native pip
-
-We have uploaded the TensorFlow binaries to piwheels.org. Therefore, you can
-install TensorFlow through pip.
-
-The [REQUIRED_PACKAGES section of
-setup.py](https://github.com/tensorflow/tensorflow/blob/master/tensorflow/tools/pip_package/setup.py)
-lists the packages that pip will install or upgrade.
-
-### Prerequisite: Python
-
-In order to install TensorFlow, your system must contain one of the following
-Python versions:
-
-* Python 2.7
-* Python 3.4+
-
-If your system does not already have one of the preceding Python versions,
-[install](https://wiki.python.org/moin/BeginnersGuide/Download) it now. It
-should already be included when Raspbian was installed though, so no extra steps
-should be needed.
-
-### Prerequisite: pip
-
-[Pip](https://en.wikipedia.org/wiki/Pip_\(package_manager\)) installs and
-manages software packages written in Python. If you intend to install with
-native pip, then one of the following flavors of pip must be installed on your
-system:
-
-* `pip3`, for Python 3.n (preferred).
-* `pip`, for Python 2.7.
-
-`pip` or `pip3` was probably installed on your system when you installed Python.
-To determine whether pip or pip3 is actually installed on your system, issue one
-of the following commands:
-
-<pre>$ <b>pip3 -V</b> # for Python 3.n
-$ <b>pip -V</b> # for Python 2.7</pre>
-
-If it gives the error "Command not found", then the package has not been
-installed yet. To install if for the first time, run:
-
-<pre>$ sudo apt-get install python3-pip # for Python 3.n
-$ sudo apt-get install python-pip # for Python 2.7</pre>
-
-You can find more help on installing and upgrading pip in
-[the Raspberry Pi documentation](https://www.raspberrypi.org/documentation/linux/software/python.md).
-
-### Prerequisite: Atlas
-
-[Atlas](http://math-atlas.sourceforge.net/) is a linear algebra library that
-numpy depends on, and so needs to be installed before TensorFlow. To add it to
-your system, run the following command:
-
-<pre>$ sudo apt install libatlas-base-dev</pre>
-
-### Install TensorFlow
-
-Assuming the prerequisite software is installed on your Pi, install TensorFlow
-by invoking **one** of the following commands:
-
-<pre>$ <b>pip3 install tensorflow</b> # Python 3.n
-$ <b>pip install tensorflow</b> # Python 2.7</pre>
-
-This can take some time on certain platforms like the Pi Zero, where some Python
-packages like scipy that TensorFlow depends on need to be compiled before the
-installation can complete. The Python 3 version will typically be faster to
-install because piwheels.org has pre-built versions of the dependencies
-available, so this is our recommended option.
-
-### Next Steps
-
-After installing TensorFlow, [validate your
-installation](#ValidateYourInstallation) to confirm that the installation worked
-properly.
-
-### Uninstalling TensorFlow
-
-To uninstall TensorFlow, issue one of following commands:
-
-<pre>$ <b>pip uninstall tensorflow</b>
-$ <b>pip3 uninstall tensorflow</b> </pre>
-
-## Cross-compiling from sources
-
-Cross-compilation means building on a different machine than than you'll be
-deploying on. Since Raspberry Pi's only have limited RAM and comparatively slow
-processors, and TensorFlow has a large amount of source code to compile, it's
-easier to use a MacOS or Linux desktop or laptop to handle the build process.
-Because it can take over 24 hours to build on a Pi, and requires external swap
-space to cope with the memory shortage, we recommend using cross-compilation if
-you do need to compile TensorFlow from source. To make the dependency management
-process easier, we also recommend using Docker to help simplify building.
-
-Note that we provide well-tested, pre-built TensorFlow binaries for Raspbian
-systems. So, don't build a TensorFlow binary yourself unless you are very
-comfortable building complex packages from source and dealing with the
-inevitable aftermath should things not go exactly as documented
-
-### Prerequisite: Docker
-
-Install Docker on your machine as described in the [Docker
-documentation](https://docs.docker.com/engine/installation/#/on-macos-and-windows).
-
-### Clone the TensorFlow repository
-
-Start the process of building TensorFlow by cloning a TensorFlow repository.
-
-To clone **the latest** TensorFlow repository, issue the following command:
-
-<pre>$ <b>git clone https://github.com/tensorflow/tensorflow</b> </pre>
-
-The preceding <code>git clone</code> command creates a subdirectory named
-`tensorflow`. After cloning, you may optionally build a **specific branch**
-(such as a release branch) by invoking the following commands:
-
-<pre>
-$ <b>cd tensorflow</b>
-$ <b>git checkout</b> <i>Branch</i> # where <i>Branch</i> is the desired branch
-</pre>
-
-For example, to work with the `r1.0` release instead of the master release,
-issue the following command:
-
-<pre>$ <b>git checkout r1.0</b></pre>
-
-### Build from source
-
-To compile TensorFlow and produce a binary pip can install, do the following:
-
-1. Start a terminal.
-2. Navigate to the directory containing the tensorflow source code.
-3. Run a command to cross-compile the library, for example:
-
-<pre>$ CI_DOCKER_EXTRA_PARAMS="-e CI_BUILD_PYTHON=python3 -e CROSSTOOL_PYTHON_INCLUDE_PATH=/usr/include/python3.4" \
-tensorflow/tools/ci_build/ci_build.sh PI-PYTHON3 tensorflow/tools/ci_build/pi/build_raspberry_pi.sh
- </pre>
-
-This will build a pip .whl file for Python 3.4, with Arm v7 instructions that
-will only work on the Pi models 2 or 3. These NEON instructions are required for
-the fastest operation on those devices, but you can build a library that will
-run across all Pi devices by passing `PI_ONE` at the end of the command line.
-You can also target Python 2.7 by omitting the initial docker parameters. Here's
-an example of building for Python 2.7 and Raspberry Pi model Zero or One
-devices:
-
-<pre>$ tensorflow/tools/ci_build/ci_build.sh PI tensorflow/tools/ci_build/pi/build_raspberry_pi.sh PI_ONE</pre>
-
-This will take some time to complete, typically twenty or thirty minutes, and
-should produce a .whl file in an output-artifacts sub-folder inside your source
-tree at the end. This wheel file can be installed through pip or pip3 (depending
-on your Python version) by copying it to a Raspberry Pi and running a terminal
-command like this (with the name of your actual file substituted):
-
-<pre>$ pip3 install tensorflow-1.9.0-cp34-none-linux_armv7l.whl</pre>
-
-### Troubleshooting the build
-
-The build script uses Docker internally to create a Linux virtual machine to
-handle the compilation. If you do have problems running the script, first check
-that you're able to run Docker tests like `docker run hello-world` on your
-system.
-
-If you're building from the latest development branch, try syncing to an older
-version that's known to work, for example release 1.9, with a command like this:
-
-<pre>$ <b>git checkout r1.0</b></pre>
-
-<a name="ValidateYourInstallation"></a>
-
-## Validate your installation
-
-To validate your TensorFlow installation, do the following:
-
-1. Ensure that your environment is prepared to run TensorFlow programs.
-2. Run a short TensorFlow program.
-
-### Prepare your environment
-
-If you installed on native pip, Virtualenv, or Anaconda, then do the following:
-
-1. Start a terminal.
-2. If you installed TensorFlow source code, navigate to any directory *except*
- one containing TensorFlow source code.
-
-### Run a short TensorFlow program
-
-Invoke python from your shell as follows:
-
-<pre>$ <b>python</b></pre>
-
-Enter the following short program inside the python interactive shell:
-
-```python
-# Python
-import tensorflow as tf
-hello = tf.constant('Hello, TensorFlow!')
-sess = tf.Session()
-print(sess.run(hello))
-```
-
-If the system outputs the following, then you are ready to begin writing
-TensorFlow programs:
-
-<pre>Hello, TensorFlow!</pre>
-
-If you're running with Python 3.5, you may see a warning when you first import
-TensorFlow. This is not an error, and TensorFlow should continue to run with no
-problems, despite the log message.
-
-If the system outputs an error message instead of a greeting, see [Common
-installation problems](#common_installation_problems).
-
-To learn more, see the [TensorFlow tutorials](../tutorials/).
-
-## Common installation problems
-
-We are relying on Stack Overflow to document TensorFlow installation problems
-and their remedies. The following table contains links to Stack Overflow answers
-for some common installation problems. If you encounter an error message or
-other installation problem not listed in the following table, search for it on
-Stack Overflow. If Stack Overflow doesn't show the error message, ask a new
-question about it on Stack Overflow and specify the `tensorflow` tag.
-
-<table>
-<tr> <th>Stack Overflow Link</th> <th>Error Message</th> </tr>
-
-
-<tr>
- <td><a href="http://stackoverflow.com/q/42006320">42006320</a></td>
- <td><pre>ImportError: Traceback (most recent call last):
-File ".../tensorflow/core/framework/graph_pb2.py", line 6, in <module>
-from google.protobuf import descriptor as _descriptor
-ImportError: cannot import name 'descriptor'</pre>
- </td>
-</tr>
-
-<tr>
- <td><a href="https://stackoverflow.com/q/33623453">33623453</a></td>
- <td><pre>IOError: [Errno 2] No such file or directory:
- '/tmp/pip-o6Tpui-build/setup.py'</tt></pre>
-</tr>
-
-<tr>
- <td><a href="https://stackoverflow.com/questions/35190574">35190574</a> </td>
- <td><pre>SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify
- failed</pre></td>
-</tr>
-
-<tr>
- <td><a href="http://stackoverflow.com/q/42009190">42009190</a></td>
- <td><pre>
- Installing collected packages: setuptools, protobuf, wheel, numpy, tensorflow
- Found existing installation: setuptools 1.1.6
- Uninstalling setuptools-1.1.6:
- Exception:
- ...
- [Errno 1] Operation not permitted:
- '/tmp/pip-a1DXRT-uninstall/.../lib/python/_markerlib' </pre></td>
-</tr>
-
-<tr>
- <td><a href="https://stackoverflow.com/q/33622019">33622019</a></td>
- <td><pre>ImportError: No module named copyreg</pre></td>
-</tr>
-
-<tr>
- <td><a href="http://stackoverflow.com/q/37810228">37810228</a></td>
- <td>During a <tt>pip install</tt> operation, the system returns:
- <pre>OSError: [Errno 1] Operation not permitted</pre>
- </td>
-</tr>
-
-<tr>
- <td><a href="http://stackoverflow.com/q/33622842">33622842</a></td>
- <td>An <tt>import tensorflow</tt> statement triggers an error such as the
- following:<pre>Traceback (most recent call last):
- File "<stdin>", line 1, in <module>
- File "/usr/local/lib/python2.7/site-packages/tensorflow/__init__.py",
- line 4, in <module>
- from tensorflow.python import *
- ...
- File "/usr/local/lib/python2.7/site-packages/tensorflow/core/framework/tensor_shape_pb2.py",
- line 22, in <module>
- serialized_pb=_b('\n,tensorflow/core/framework/tensor_shape.proto\x12\ntensorflow\"d\n\x10TensorShapeProto\x12-\n\x03\x64im\x18\x02
- \x03(\x0b\x32
- .tensorflow.TensorShapeProto.Dim\x1a!\n\x03\x44im\x12\x0c\n\x04size\x18\x01
- \x01(\x03\x12\x0c\n\x04name\x18\x02 \x01(\tb\x06proto3')
- TypeError: __init__() got an unexpected keyword argument 'syntax'</pre>
- </td>
-</tr>
-
-
-</table>