[Installation] Installing the requirements for YOLO on Jetsan Nano

jaskiratsingh2000 commented 3 years ago

Installation of Python 3.8.5

(Applicable on Raspberry Pi 4, Raspberry Pi Zero W, and Jetsan Nano)

Below are the following steps to install python 3.8.5 on the Hardware Devices.

Update the System

Updating the system before installing the Python.
```
sudo apt-get update
```

Prequisistes

Before installing Python 3.8.5 there are some dependencies that we need to install. Use the following command to install the required dependencies.

sudo apt-get install -y build-essential tk-dev libncurses5-dev libncursesw5-dev libreadline6-dev libdb5.3-dev libgdbm-dev libsqlite3-dev libssl-dev libbz2-dev libexpat1-dev liblzma-dev zlib1g-dev libffi-dev tar wget vim

Download Python

Downloading the Python from the official website using the following command:
```
wget https://www.python.org/ftp/python/3.8.5/Python-3.8.5.tgz
```

Install Python 3.8.5

Now we extract and install Python from the source.

sudo tar zxf Python-3.8.5.tgz
cd Python-3.8.5
sudo ./configure --enable-optimizations
sudo make -j 4
sudo make altinstall

Check Python Version

Now Python is installed you can check the version using the following command.
```
python3.8 -V
```

Make python 3.8.5 as the default version

If you want to use python 3.8 as a default version you can create an alias.
```
echo "alias python3=/usr/local/bin/python3.8" >> ~/.bashrc
```
Then source the .bashrc file.
```
source ~/.bashrc
```

Check Python Version

After creating an alias check the python version again.
```
python -V
Python 3.8.5
```

Now you have successfully installed Python 3.8.5 on Raspberry Pi.

jaskiratsingh2000 commented 3 years ago

Installation of PyTorch 1.7

(Applicable on Jetsan Nano)

Below are the following steps to install PyTorch 1.7 version on the Jetsan Nano

Download Pytorch from GitHub

Cloning the PyTorch repository with the 1.7 branch ( 1.7 Denotes the version here)
```
git clone --recursive --branch 1.7 http://github.com/pytorch/pytorch
```

* Moving inside the `pytorch` folder

cd pytorch


#### Installing requirements to build PyTorch
* installing the requirements that are needed to build the pytorch

python3.8 -m pip install -r requirements.txt


#### Build PyTorch
* setup.py is a python file, the presence of which is an indication that the module/package you are about to install has likely been packaged and distributed with Distutils, which is the standard for distributing Python Modules.

python3.8 setup.py install --user

jaskiratsingh2000 commented 3 years ago

Installation of TorchVision

(Applicable on Jetsan Nano)

Below are the following steps to install the TorchVsion 0.8.1 version on the Jetsan Nano

Download Pytorch from GitHub

Cloning the vision Repository and it will have the latest version by default
```
git clone --recursive --branch v0.8.1 http://github.com/pytorch/vision
```
Moving inside the vision folder
```
cd vision
```
Exporting and checking for the required version. In this case 0.8.1
```
export BUILD_VERSION=0.8.1
```

Build TorchVision

setup.py is a python file, the presence of which is an indication that the module/package you are about to install has likely been packaged and distributed with Distutils, which is the standard for distributing Python Modules.
```
python3.8 setup.py install --user
```

NOTE: In case if you get to see version 0.8.0 then do not worry since In short, you do have torchvision v0.8.1, it is just reporting as v0.8.0a0+45f960c. If you look at the torchvision release page 2 for v0.8.1, it has the same commit (45f960c) as reported in the version.

While doing the above TorchVision Setup if you come across the following error:

error: command 'gcc' failed with exit status 1

then follow these steps:

sudo add-apt-repository ppa:ubuntu-toolchain-r/test
sudo apt-get update
sudo apt-get install gcc-10 g++-10

The build-essentials are libraries and packages used to build source code. They are essential to build most of the packages. By installing this package the error can be solved.

sudo apt install build-essential

The most prolific reason for the “error command gcc failed with exit status 1” is the absence of the Python development library or package. The Python development library or package is named “python-devel” or “python-dev” in most of the distributions. According to your python version select the proper python development library installation command from below.

sudo apt install python3-dev

Other popular libraries are libffi, libxslt and openssl. They generally required by Python tools and libraries for compilation. So you can install these libraries with the following commands.

sudo apt install libxslt-dev libffi-dev libssl-dev

jaskiratsingh2000 commented 3 years ago

Installation of OpenCV

(Applicable on Jetsan Nano)

Below are the following steps to install OpenCV 4.5.2 version on the Jetsan Nano

Installing the direct package

Cloning the PyTorch repository with the 1.7 branch ( 1.7 Denotes the version here)
```
sudo python3.8 -m pip install opencv-python
```

jaskiratsingh2000 / Research-Scalable-Vehicle-Detection-on-Edge-Devices