python bindings

Rümeysa Işıldak

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Oct 30, 2023, 6:35:44 AM10/30/23

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Hi all,

I am trying to replicate src/lte/examples/lena-pathloss-traces.cc(ns3-3.40) in python. However, when attempting to run the attached code in below, I got the following error:

"""

r**@r**-VirtualBox:~/Desktop/ns3-3.40/ns-allinone-3.40/ns-3.40$ ./ns3 run src/lte/examples/lena-pathloss-traces_risildak.py
dist =6.6005, Path Loss = 67.3587
Traceback (most recent call last):
File "/home/risildak/Desktop/ns3-3.40/ns-allinone-3.40/ns-3.40/src/lte/examples/lena-pathloss-traces_risildak.py", line 129, in <module>
ns.Simulator.Run()
TypeError: static void ns3::Simulator::Run() =>
TypeError: static void ns3::Simulator::Run() =>
TypeError: takes at most 0 arguments (4 given)
Command 'python3 /home/risildak/Desktop/ns3-3.40/ns-allinone-3.40/ns-3.40/src/lte/examples/lena-pathloss-traces_risildak.py' returned non-zero exit status 1.
"""

How can I fix this?

risildak_trial_2.py

Gabriel Ferreira

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Oct 30, 2023, 8:35:54 AM10/30/23

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Is that Cppyy3? If it is, currently not supported.

ABDULJABBAR ALSHARIF

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Oct 30, 2023, 10:32:13 AM10/30/23

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hi,

Do you mean if we use cppy file to the compiler it will not work if I want to build my topology using Python?

" if you want the rainbow you have deal with rains"

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Oct 31, 2023, 1:26:02 AM10/31/23

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no, I am using cppyy 2.4.2

30 Ekim 2023 Pazartesi tarihinde saat 15:35:54 UTC+3 itibarıyla Gabriel Ferreira şunları yazdı:

Gabriel Ferreira

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Nov 2, 2023, 11:01:59 PM11/2/23

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I've checked it out. The problem is in the MakeCallback calls before the run.

They don't work correctly when being called from python (known limitation).
So you need to create a c++ wrapper for them.

You can see a few examples here: https://github.com/Gabrielcarvfer/ns3_for_education/blob/master/000_introduction_to_ns3.ipynb

Rümeysa Işıldak

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Nov 3, 2023, 2:58:46 AM11/3/23

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thanks a lot for your help and explanation Gabriel!

3 Kasım 2023 Cuma tarihinde saat 06:01:59 UTC+3 itibarıyla Gabriel Ferreira şunları yazdı:

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