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depthai-2.9.0.0
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DepthAI Python Library
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | depthai-2.9.0.0 |
| نام | depthai |
| نسخه کتابخانه | 2.9.0.0 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | Luxonis |
| ایمیل نویسنده | support@luxonis.com |
| آدرس صفحه اصلی | https://github.com/luxonis/depthai-python |
| آدرس اینترنتی | https://pypi.org/project/depthai/ |
| مجوز | MIT |
# DepthAI Python Library
[](https://opensource.org/licenses/MIT)
[](https://pypi.org/project/depthai/)
[](https://github.com/luxonis/depthai-python/actions/workflows/main.yml)
Python bindings for C++ depthai-core library
## Documentation
Documentation is available over at [Luxonis DepthAI API](https://docs.luxonis.com/projects/api/en/latest/)
## Installation
Prebuilt wheels are available in [Luxonis repository](https://artifacts.luxonis.com/artifactory/luxonis-python-snapshot-local/)
Make sure pip is upgraded
```
python3 -m pip install -U pip
python3 -m pip install --extra-index-url https://artifacts.luxonis.com/artifactory/luxonis-python-snapshot-local/ depthai
```
## Building from source
### Dependencies
- cmake >= 3.4
- C++14 compiler (clang, gcc, msvc, ...)
- Python3
Along these, dependencies of depthai-core are also required
See: [depthai-core dependencies](https://github.com/luxonis/depthai-core#dependencies)
### Building
The first time you build, the repository submodules need be initialized:
```
git submodule update --init --recursive
# Tip: You can ask Git to do that automatically:
git config submodule.recurse true
```
Later submodules also need to be updated.
#### Local build with pip
To build and install using pip:
```
python3 -m pip install .
```
Add parameter `-v` to see the output of the building process.
#### Wheel with pip
To build a wheel, execute the following
```
python3 -m pip wheel . -w wheelhouse
```
#### Shared library
To build a shared library from source perform the following:
> ℹ️ To speed up build times, use `cmake --build build --parallel [num CPU cores]` (CMake >= 3.12).
For older versions use: Linux/macOS: `cmake --build build -- -j[num CPU cores]`, MSVC: `cmake --build build -- /MP[num CPU cores]`
```
cmake -H. -Bbuild
cmake --build build
```
To specify custom Python executable to build for, use `cmake -H. -Bbuild -D PYTHON_EXECUTABLE=/full/path/to/python`.
#### Common issues
* Many build fails due to missing dependencies. This also happens when submodules are missing or outdated (`git submodule update --recursive`).
* If libraries and headers are not in standard places, or not on the search paths, CMake reports it cannot find what it needs (e.g. `libusb`). CMake can be hinted at where to look, for exmpale: `CMAKE_LIBRARY_PATH=/opt/local/lib CMAKE_INCLUDE_PATH=/opt/local/include pip install .`
* Some distribution installers may not get the desired library. For example, an install on a RaspberryPi failed, missing `libusb`, as the default installation with APT led to v0.1.3 at the time, whereas the library here required v1.0.
## Running tests
To run the tests build the library with the following options
```
git submodule update --init --recursive
cmake -H. -Bbuild -D DEPTHAI_PYTHON_ENABLE_TESTS=ON -D DEPTHAI_PYTHON_ENABLE_EXAMPLES=ON -D DEPTHAI_PYTHON_TEST_EXAMPLES=ON
cmake --build build
```
Then navigate to `build` folder and run `ctest`
```
cd build
ctest
```
To test a specific example/test with a custom timeout (in seconds) use following:
```
TEST_TIMEOUT=0 ctest -R "01_rgb_preview" --verbose
```
If `TEST_TIMEOUT=0`, the test will run until stopped or it ends.
## Tested platforms
- Windows 10, Windows 11
- Ubuntu 18.04, 20.04, 22.04;
- Raspbian 10;
- macOS 10.14.6, 10.15.4;
### Building documentation
- **Using [Docker](https://docs.docker.com/) (with [Docker Compose](https://docs.docker.com/compose/install/))**
```
cd docs
sudo docker-compose build
sudo docker-compose up
```
> ℹ️ You can leave out the `sudo` if you have added your user to the `docker` group (or are using rootless docker).
Then open [http://localhost:8000](http://localhost:8000).
This docker container will watch changes in the `docs/source` directory and rebuild the docs automatically
- **Linux**
First, please install the required [dependencies](#Dependencies)
Then run the following commands to build the docs website
```
python3 -m pip install -U pip
python3 -m pip install -r docs/requirements.txt
cmake -H. -Bbuild -D DEPTHAI_BUILD_DOCS=ON -D DEPTHAI_PYTHON_BUILD_DOCS=ON
cmake --build build --target sphinx
python3 -m http.server --bind 0.0.0.0 8000 --directory build/docs/sphinx
```
Then open [http://localhost:8000](http://localhost:8000).
This will build documentation based on current sources, so if some new changes will be made, run this command
in a new terminal window to update the website source
```
cmake --build build --target sphinx
```
Then refresh your page - it should load the updated website that was just built
## Troubleshooting
### Relocation link error
Build failure on Ubuntu 18.04 ("relocation ..." link error) with gcc 7.4.0 (default) - [**issue #3**](https://github.com/luxonis/depthai-api/issues/3)
- the solution was to upgrade gcc to version 8:
sudo apt install g++-8
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-8 70
sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-8 70
### Hunter
Hunter is a CMake-only dependency manager for C/C++ projects.
If you are stuck with error message which mentions external libraries (subdirectory of `.hunter`) like the following:
```
/usr/bin/ld: /home/[user]/.hunter/_Base/062a19a/ccfed35/a84a713/Install/lib/liblzma.a(stream_flags_decoder.c.o): warning: relocation against `lzma_footer_magic' in read-only section `.text'
```
Try erasing the **Hunter** **cache** folder.
Linux/MacOS:
```
rm -r ~/.hunter
```
Windows:
```
del C:/.hunter
```
or
```
del C:/[user]/.hunter
```
### LTO - link time optimization
If following message appears:
```
lto1: internal compiler error: in add_symbol_to_partition_1, at lto/lto-partition.c:152
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-10/README.Bugs> for instructions.
lto-wrapper: fatal error: /usr/bin/c++ returned 1 exit status
compilation terminated.
/usr/bin/ld: error: lto-wrapper failed
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/depthai.dir/build.make:227: depthai.cpython-38-x86_64-linux-gnu.so] Error 1
make[1]: *** [CMakeFiles/Makefile2:98: CMakeFiles/depthai.dir/all] Error 2
make: *** [Makefile:130: all] Error 2
```
One fix is to update linker: (In case you are on Ubuntu 20.04: `/usr/bin/ld --version`: 2.30)
```
# Add to the end of /etc/apt/sources.list:
echo "deb http://ro.archive.ubuntu.com/ubuntu groovy main" >> /etc/apt/sources.list
# Replace ro with your countries local cache server (check the content of the file to find out which is)
# Not mandatory, but faster
sudo apt update
sudo apt install binutils
# Should upgrade to 2.35.1
# Check version:
/usr/bin/ld --version
# Output should be: GNU ld (GNU Binutils for Ubuntu) 2.35.1
# Revert /etc/apt/sources.list to previous state (comment out line) to prevent updating other packages.
sudo apt update
```
Another option is to use **clang** compiler:
```
sudo apt install clang-10
mkdir build && cd build
CC=clang-10 CXX=clang++-10 cmake ..
cmake --build . --parallel
```
زبان مورد نیاز
| مقدار | نام |
|---|---|
| >=3.6 | Python |
نحوه نصب
نصب پکیج whl depthai-2.9.0.0:
pip install depthai-2.9.0.0.whl
نصب پکیج tar.gz depthai-2.9.0.0:
pip install depthai-2.9.0.0.tar.gz