barKoder SDK - Python library

Requirements #

• A 64-bit OS based on Linux, for an x86-64 CPU architecture. As a general guideline Ubuntu 22.04 or newer is recommended. Install commands given below assume a Debian distro is used (but are not limited to).

• python3 (version 3.11 or newer; contact us if you need support for older versions)

• Most linux distos come with python. If not already present, it can be installed with:

sudo apt-get install python3

• opencv-python (for sample app; note that this package has to be installed for the same version of python that will be used)

• OpenCV for Python can be installed via pip with:

sudo apt install python3-pip

sudo pip3 install opencv-python

• curl (optional)

Curl might be needed for licensing, depending on the type of license used. In particular, curl from snap is required (ref https://snapcraft.io/curl). It can be installed with:

sudo apt install snapd

sudo snap install curl

Using a specific python version #

If you need to use a specific python version, i.e. running the sample app like so:

                python3.11 run.py
            

you may need to install a side-by-side python version, different than the one you have, for example:

                sudo apt-get install python3.11
            

                sudo dnf install python3.11
            

and OpenCV for Python should also be available under that version, and can be installed with:

                python3.11 -m pip install opencv-python
            

                python3.11 -m pip install --upgrade --ignore-installed pip
//ignore-installed is in case your pip was installed by the system package manager

            

Optionally you may need to get pip

                curl -O https://bootstrap.pypa.io/get-pip.py
sudo python3.11 get-pip.py

            

Eventually, when running the sample app (which you can download from our repository) , if you get an error like this:

                ImportError: libGL.so.1: cannot open shared object file: No such file or directory


            

You are probably on a RedHat distribution and you may need to add this:

                sudo yum install mesa-libGL
            

Finally get our python lib #

After you've installed all the necessary requirements to run the software, head over to our repository  and download the python library. 

Unzip the file and you should find a fully working how-to-start app which should be sufficient to get you started.