No module named response_frames

[K4KDR]

System is Ubuntu 16.04, 64-bit.

python --version
Python 2.7.12

python -m pip show construct
Name: construct
Version: 2.9.45

When attempting to use this block in GNU Radio, -or- when simply running it from the command line, I get the following:

  File "payload_decoder.py", line 21, in <module>
    import response_frames
ImportError: No module named response_frames

Is my environment lacking a requirement to use this code?

Many thanks.

-Scott, K4KDR

[begreeen]

Probably you didn't pull the submodule PWSat2OBC which is used in this code - clone should look like that:

$ cd FramePayloadDecoder
$ git submodule init
$ git submodule update

[K4KDR]

Thank you for the reply!

Yes, those were the exact steps followed and appeared to run to completion. Checking my command history, I see:

 1951  git clone https://github.com/PW-Sat2/FramePayloadDecoder
 1952  cd FramePayloadDecoder/
 1953  git submodule init
 1954  git submodule update

[daniestevez]

Hi Scott, this is odd.

Could you please check that you have indeed a response_frames.py file inside your `FramePayloadDecoder/PWSat2OBC/integration_tests/' folder?

Also, please paste the complete traceback in case there are any other important clues.

[K4KDR]

I see a FOLDER in that path named "response_frames"; here is that listing:

k4kdr@:~/FramePayloadDecoder/PWSat2OBC/integration_tests$ ls -l
total 108
-rw-rw-r-- 1 k4kdr k4kdr   239 Dec  6 18:30 build_config.py
-rw-rw-r-- 1 k4kdr k4kdr  1463 Dec  6 18:30 CMakeLists.txt
-rw-rw-r-- 1 k4kdr k4kdr   416 Dec  6 18:30 config.py.template
-rw-rw-r-- 1 k4kdr k4kdr  2689 Dec  6 18:30 crc.py
drwxrwxr-x 2 k4kdr k4kdr  4096 Dec  6 18:31 devices
drwxrwxr-x 3 k4kdr k4kdr  4096 Dec  6 18:30 emulator
drwxrwxr-x 2 k4kdr k4kdr  4096 Dec  6 18:30 experiment_file
-rw-rw-r-- 1 k4kdr k4kdr   419 Dec  6 18:30 experiment_type.py
drwxrwxr-x 2 k4kdr k4kdr  4096 Dec  6 18:30 extensions
drwxrwxr-x 2 k4kdr k4kdr  4096 Dec  6 18:31 i2cMock
drwxrwxr-x 3 k4kdr k4kdr  4096 Dec  6 18:30 ipython_profile
drwxrwxr-x 2 k4kdr k4kdr  4096 Dec  6 18:30 obc
-rw-rw-r-- 1 k4kdr k4kdr  1005 Dec  6 18:30 parsing.py
drwxrwxr-x 2 k4kdr k4kdr  4096 Dec  6 18:30 persistent_state
-rw-rw-r-- 1 k4kdr k4kdr   752 Dec  6 18:30 pins.py
-rw-rw-r-- 1 k4kdr k4kdr   194 Dec  6 18:30 requirements.txt
drwxrwxr-x 2 k4kdr k4kdr  4096 Dec  6 18:31 response_frames
drwxrwxr-x 2 k4kdr k4kdr  4096 Dec  6 18:30 scripts
drwxrwxr-x 2 k4kdr k4kdr  4096 Dec  6 18:30 system
drwxrwxr-x 2 k4kdr k4kdr  4096 Dec  6 18:30 telecommand
drwxrwxr-x 2 k4kdr k4kdr  4096 Dec  6 18:30 tests
drwxrwxr-x 2 k4kdr k4kdr  4096 Dec  6 18:30 tools
-rw-rw-r-- 1 k4kdr k4kdr  5541 Dec  6 18:30 utils.py
-rw-rw-r-- 1 k4kdr k4kdr 10359 Dec  6 18:31 utils.pyc
k4kdr@:~/FramePayloadDecoder/PWSat2OBC/integration_tests$ 

... and here is the contents of that folder:

k4kdr@:~/FramePayloadDecoder/PWSat2OBC/integration_tests/response_frames$ ls -l
total 124
-rw-rw-r-- 1 k4kdr k4kdr  519 Dec  6 18:30 adcs.py
-rw-rw-r-- 1 k4kdr k4kdr  324 Dec  6 18:30 beacon_factory.py
-rw-rw-r-- 1 k4kdr k4kdr 1086 Dec  6 18:31 beacon_factory.pyc
-rw-rw-r-- 1 k4kdr k4kdr 4205 Dec  6 18:30 common.py
-rw-rw-r-- 1 k4kdr k4kdr  199 Dec  6 18:30 comm.py
-rw-rw-r-- 1 k4kdr k4kdr  412 Dec  6 18:30 compile_info.py
-rw-rw-r-- 1 k4kdr k4kdr  315 Dec  6 18:30 disable_overheat_submode.py
-rw-rw-r-- 1 k4kdr k4kdr 1426 Dec  6 18:30 downlink_frame_factory.py
-rw-rw-r-- 1 k4kdr k4kdr  529 Dec  6 18:30 exception.py
-rw-rw-r-- 1 k4kdr k4kdr 1672 Dec  6 18:31 exception.pyc
-rw-rw-r-- 1 k4kdr k4kdr  662 Dec  6 18:30 fdir.py
-rw-rw-r-- 1 k4kdr k4kdr  870 Dec  6 18:30 file_system.py
-rw-rw-r-- 1 k4kdr k4kdr  362 Dec  6 18:30 frame_decoder.py
-rw-rw-r-- 1 k4kdr k4kdr 1244 Dec  6 18:31 frame_decoder.pyc
-rw-rw-r-- 1 k4kdr k4kdr 3152 Dec  6 18:30 __init__.py
-rw-rw-r-- 1 k4kdr k4kdr 6127 Dec  6 18:31 __init__.pyc
-rw-rw-r-- 1 k4kdr k4kdr   40 Dec  6 18:30 marker.py
-rw-rw-r-- 1 k4kdr k4kdr  438 Dec  6 18:30 memory.py
-rw-rw-r-- 1 k4kdr k4kdr  690 Dec  6 18:30 operation.py
-rw-rw-r-- 1 k4kdr k4kdr  736 Dec  6 18:30 period_message.py
-rw-rw-r-- 1 k4kdr k4kdr  238 Dec  6 18:30 persistent_state.py
-rw-rw-r-- 1 k4kdr k4kdr  184 Dec  6 18:30 pong.py
-rw-rw-r-- 1 k4kdr k4kdr 1124 Dec  6 18:30 program_upload.py
-rw-rw-r-- 1 k4kdr k4kdr  248 Dec  6 18:30 sail_experiment.py
-rw-rw-r-- 1 k4kdr k4kdr  291 Dec  6 18:30 set_bitrate.py
-rw-rw-r-- 1 k4kdr k4kdr  313 Dec  6 18:30 stop_antenna_deployment.py
-rw-rw-r-- 1 k4kdr k4kdr  307 Dec  6 18:30 stop_sail_deployment.py
-rw-rw-r-- 1 k4kdr k4kdr  376 Dec  6 18:30 suns.py
-rw-rw-r-- 1 k4kdr k4kdr 1064 Dec  6 18:30 time.py
k4kdr@:~/FramePayloadDecoder/PWSat2OBC/integration_tests/response_frames$ 

... and as for the traceback, I do not know what has changed since yesterday but I am now getting more errors than the single item initially reported:

Executing: /usr/bin/python -u /home/k4kdr/gr-satellites/apps/pwsat2.py

Traceback (most recent call last):
  File "/home/k4kdr/gr-satellites/apps/pwsat2.py", line 242, in <module>
    main()
  File "/home/k4kdr/gr-satellites/apps/pwsat2.py", line 236, in main
    tb = top_block_cls(bfo=options.bfo, callsign=options.callsign, latitude=options.latitude, longitude=options.longitude, port=options.port, recstart=options.recstart, ip=options.ip)
  File "/home/k4kdr/gr-satellites/apps/pwsat2.py", line 56, in __init__
    self.satellites_pwsat2_telemetry_parser_0 = satellites.pwsat2_telemetry_parser("/home/k4kdr/FramePayloadDecoder")
  File "/usr/local/lib/python2.7/dist-packages/satellites/pwsat2_telemetry_parser.py", line 44, in __init__
    self.pwsat2_decoder = __import__('payload_decoder')
  File "/home/k4kdr/FramePayloadDecoder/payload_decoder.py", line 21, in <module>
    import response_frames
  File "/home/k4kdr/FramePayloadDecoder/PWSat2OBC/integration_tests/response_frames/__init__.py", line 2, in <module>
    from beacon_factory import BeaconFrameFactory
  File "/home/k4kdr/FramePayloadDecoder/PWSat2OBC/integration_tests/response_frames/beacon_factory.py", line 1, in <module>
    from devices.comm_beacon import BeaconFrame
  File "/home/k4kdr/FramePayloadDecoder/PWSat2OBC/integration_tests/devices/__init__.py", line 1, in <module>
    from eps import EPS
  File "/home/k4kdr/FramePayloadDecoder/PWSat2OBC/integration_tests/devices/eps.py", line 7, in <module>
    import i2cMock
  File "/home/k4kdr/FramePayloadDecoder/PWSat2OBC/integration_tests/i2cMock/__init__.py", line 1, in <module>
    from i2cMock import *
  File "/home/k4kdr/FramePayloadDecoder/PWSat2OBC/integration_tests/i2cMock/i2cMock.py", line 11, in <module>
    from utils import hex_data
  File "/home/k4kdr/FramePayloadDecoder/PWSat2OBC/integration_tests/utils.py", line 5, in <module>
    from bitarray import bitarray
ImportError: No module named bitarray

>>> Done (return code 1)

[daniestevez]

Ok. response_frames is indeed a folder, not a .py file. My confusion.

Now, you need to install bitarray. This can (perhaps) be installed with your distribution's package manager or with pip2. I'll add this to the instruction in my blog.

[K4KDR]

Seems that "typing" is also needed. I have installed both and we seem to be good. Thanks so much!

pdu_length = 246
contents = 
0000: a0 ae a6 82 a8 64 e0 a0 ae a6 82 a8 64 61 03 f0 
0010: cd 25 01 00 00 07 67 00 fd bf ad 82 6e 07 00 00 
0020: 00 00 f3 37 6f 38 00 00 00 00 00 00 00 00 00 0a 
0030: 00 00 00 00 0a ba 42 01 c0 1a 28 00 d3 ba 0d 00 
0040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 24 80 
0050: 80 f7 7f f2 3f 06 80 11 68 07 28 36 a9 6e 53 dd 
0060: 4b 99 bc 88 81 01 25 3e 38 48 49 c1 cf 5d 4d 3c 
0070: b7 ce c4 32 c3 28 07 88 49 8a 33 94 1c d1 6a 4c 
0080: 1c 1d 32 81 10 89 e2 ba 65 c1 88 03 74 1c 0c e0 
0090: 2f 13 00 69 be 5e 1e b8 03 00 57 5b 28 f3 01 00 
00a0: 5d 77 ed 22 da 67 cb 83 26 80 9e ec 17 29 00 80 
00b0: d7 5c c7 08 00 00 00 00 00 00 00 00 00 00 00 00 
00c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
00d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
00e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
00f0: 00 00 00 00 00 00 
***********************************
<class 'devices.comm_beacon.BeaconFrame'>
{'01: Startup': {'0000: Boot Counter': 293,
                 '0032: Boot Index': {'converted': 7, 'raw': 7, 'unit': None},
                 '0040: Boot Reason': {'converted': 103,
                                       'raw': 103,
                                       'unit': None}},
 '02: Program State': {'0056: Program CRC': {'converted': 49149,
                                             'raw': 49149,
                                             'unit': None}},
 '03: Time Telemetry': {'0072: Mission time': {'converted': datetime.timedelta(1, 38282, 925000),
                                               'raw': 124682925,
                                               'unit': None},

[daniestevez]

Also added the requirement of typing in my blog. Thanks for beta-testing this!