hello
i’m trying to build jetson-inference from source on my tx2 using the following steps
https://github.com/dusty-nv/jetson-inference/blob/master/docs/building-repo.md
but every time i run any example i get the following error
nvidia@nvidia:~/jetson-inference/python/examples$ ./imagenet-console.py
Traceback (most recent call last):
File “./imagenet-console.py”, line 24, in
import jetson.inference
ImportError: No module named jetson.inference
how can i fix it ?
unfortunately i cloned the master branch . i will consider your solution but before that , should i do anything to prevent any conflicts between the already the python branch and the master branch ? how could i remove any results of the old build ?
also i’d like to use this library and the jetson.utils library to do a computer vision task but i have some questions .
first can i use this libraries with tensorflow models ?
does the jetson.utils library require any build steps ?
Hi @M_okashaa, the python branch is no longer necessary to use, the python functionality has been merged into master.
Firstly, did you do a sudo make install followed by sudo ldconfig?
Next, I suggest trying to run the program as python imagenet-console.py my_image.jpg and see if that helps. It can also be useful to start an interaction python interpreter with verbose option (python -v) and see if you can import jetson.inference from there.
It does use some TensorFlow models that have been converted to UFF, like SSD-Mobilenet and SSD-Inception from Aasta’s tool here: https://github.com/AastaNV/TRT_object_detection
Note that it does require conversion from TensorFlow frozen pb graph to TensorRT UFF (see here), and generally each type of model is explicitly supported in the jetson-inference code with the necessary pre/post-processing (e.g. RGBA->NCHW format conversion, mean pixel subtraction, interpretation/clustering of output bounding boxes, ect)
It is integrated into the jetson-inference build, so no it does not require any extra build steps.
it couldn’t be imported neither using python or python3
python :
Traceback (most recent call last):
File “imagenet-console.py”, line 24, in
import jetson.inference
ImportError: No module named jetson.inference
python3:
Traceback (most recent call last):
File “imagenet-console.py”, line 24, in
import jetson.inference
File “”, line 971, in _find_and_load
File “”, line 941, in _find_and_load_unlocked
File “”, line 219, in _call_with_frames_removed
File “”, line 971, in _find_and_load
File “”, line 953, in _find_and_load_unlocked
ModuleNotFoundError: No module named ‘jetson’
Can you check if you have a directory on your system called /usr/lib/python2.7/dist-packages/jetson/inference? It should have an __init__.py file under it.
Also, what is the output if you start an interactive python interpreter with verbose mode enabled (python -v) and type in import jetson.inference?
there is no directory called inference in the above link . only GPIO and Utils and _ init _.py
also the output is:
import jetson.inference
Traceback (most recent call last):
File “”, line 1, in
ImportError: No module named jetson.inference
OK, did you do a sudo make install from your jetson-inference/build directory?
The sudo make install step will install those Python files. After running it, you should see them there.
this is the output of the sudo make install command :
CMake Error at utils/python/bindings_python_2.7/cmake_install.cmake:89 (file):
file INSTALL cannot find
“/home/nvidia/new/jetson-inference/utils/python/bindings/…/python/jetson”.
Call Stack (most recent call first):
utils/python/cmake_install.cmake:58 (include)
utils/cmake_install.cmake:229 (include)
cmake_install.cmake:128 (include)
Makefile:117: recipe for target ‘install’ failed
make: *** [install] Error 1
Hmm it seems like something is awry with your jetson-inference source tree. Could you try re-cloning from master, and see if you get the same error? Which version of JetPack are you running?
Had the same problem.
I did the install using SDKManager for JetPack4.3.
Then followed all the Hello AI World tutorial steps through Downloading Models
including $ sudo apt-get install libpython3-dev python3-numpy
Next created the my-recognition python and cpp programs.
The cpp worked correctly.
my-recognition.py polar_bear.jpg didn’t work
python or python2 my-recognition.py polar_bear.jpg does not work
python3 my-recognition.py polar_bear.jpg does work
Pay your attention to version of python…
When you run sudo make install you can see that it install libraries for python2.7 and python3.6 only…
then you run your code via:
python3 my-app.py
but python3 can be link to python3.7
so, to be sure that you doing correct, check you python version and try to run code via python3.6 my-app.py
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