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chrisb2 / pi_ina219

This Python library supports the INA219 voltage, current and power monitor from Texas Instruments with a Raspberry Pi using the I2C bus. The intent of the library is to make it easy to use the quite complex functionality of this sensor.
MIT License
114 stars 34 forks source link

Library is not compatible with Python 3 #2

Closed chrisb2 closed 7 years ago

chrisb2 commented 7 years ago

These errors occur:

Traceback (most recent call last):
  File "example.py", line 4, in <module>
    from ina219 import INA219
  File "/home/pi/pi_ina219/ina219.py", line 7, in <module>
    import Adafruit_GPIO.I2C as I2C
ImportError: No module named 'Adafruit_GPIO'

and:

  File "example.py", line 14
    print "Bus Voltage    : %.3f V" % ina.voltage()
chrisb2 commented 7 years ago

To install dependencies for Python 3 on Raspberry Pi, this need to be executed: sudo python3 -m pip install git+git://github.com/chrisb2/pi_ina219.git this fixes the import error above.

Losaccoj commented 7 years ago

Thank you so much!! I was really stumped before I found this.

rhaejr commented 6 years ago

I'm not sure if I am doing something wrong or what but this is not fixing the issue for me? Everything works great if i us Python 2.7, but everything goes to pot when I try it on Python 3.6. When I run pip list I get:

Adafruit-GPIO (1.0.3) Adafruit-PureIO (0.2.1) asn1crypto (0.22.0) certifi (2017.4.17) cffi (1.10.0) chardet (3.0.4) conda (4.3.29) cryptography (1.9) idna (2.5) mock (2.0.0) packaging (16.8) pbr (3.1.1) pi-ina219 (1.1.0) pip (9.0.1) pycosat (0.6.1) pycparser (2.17) pyOpenSSL (16.2.0) pyparsing (2.2.0) pytube (8.0.2) requests (2.18.1) RPi.GPIO (0.6.3) ruamel.yaml (0.11.7) setuptools (36.0.1) six (1.10.0) spidev (3.2) urllib3 (1.21.1) wheel (0.29.0)

chrisb2 commented 6 years ago

If you ran pip list then this gives you the packages install for Python 2, to see what is install for Python 3, you need: pip3 list Similarly to install the library for Python 3.6 you would need to use pip3. See INSTALLING PYTHON PACKAGES

What error are you getting? Can you provide an example of the failing code?

regards, Chris

david-harkey commented 6 years ago

Similar to rhaejr above, this fix isn't working. I'm getting an error when I run that line:

Downloading/unpacking git+git://github.com/chrisb2/pi_ina219.git
  Cloning git://github.com/chrisb2/pi_ina219.git to /tmp/pip-vplibbw8-build
fatal: unable to connect to github.com:
github.com[0: 192.30.253.113]: errno=No route to host
github.com[1: 192.30.253.112]: errno=No route to host

  Complete output from command /usr/bin/git clone -q git://github.com/chrisb2/pi_ina219.git /tmp/pip-vplibbw8-build:

----------------------------------------
Cleaning up...
Command /usr/bin/git clone -q git://github.com/chrisb2/pi_ina219.git /tmp/pip-vplibbw8-build failed with error code 128 in None
Storing debug log for failure in /root/.pip/pip.log

I looked in the debug log that was mentioned, and here's the output:

------------------------------------------------------------
/usr/lib/python3/dist-packages/pip/__main__.py run on Sat Feb 24 22:28:30 2018
Downloading/unpacking git+git://github.com/chrisb2/pi_ina219.git
  Cloning git://github.com/chrisb2/pi_ina219.git to /tmp/pip-1zn5nw2s-build
  Found command 'git' at '/usr/bin/git'
  Running command /usr/bin/git clone -q git://github.com/chrisb2/pi_ina219.git /tmp/pip-1zn5nw2s-build
  Complete output from command /usr/bin/git clone -q git://github.com/chrisb2/pi_ina219.git /tmp/pip-1zn5nw2s-build:

----------------------------------------
Cleaning up...
Command /usr/bin/git clone -q git://github.com/chrisb2/pi_ina219.git /tmp/pip-1zn5nw2s-build failed with error code 128 in None
Exception information:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/pip/basecommand.py", line 122, in main
    status = self.run(options, args)
  File "/usr/lib/python3/dist-packages/pip/commands/install.py", line 290, in run
    requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
  File "/usr/lib/python3/dist-packages/pip/req.py", line 1198, in prepare_files
    do_download,
  File "/usr/lib/python3/dist-packages/pip/req.py", line 1361, in unpack_url
    unpack_vcs_link(link, loc, only_download)
  File "/usr/lib/python3/dist-packages/pip/download.py", line 344, in unpack_vcs_link
    vcs_backend.unpack(location)
  File "/usr/lib/python3/dist-packages/pip/vcs/__init__.py", line 240, in unpack
    self.obtain(location)
  File "/usr/lib/python3/dist-packages/pip/vcs/git.py", line 111, in obtain
    call_subprocess([self.cmd, 'clone', '-q', url, dest])
  File "/usr/lib/python3/dist-packages/pip/util.py", line 716, in call_subprocess
    % (command_desc, proc.returncode, cwd))
pip.exceptions.InstallationError: Command /usr/bin/git clone -q git://github.com/chrisb2/pi_ina219.git /tmp/pip-1zn5nw2s-build failed with error code 128 in None

Looks like I'm having issues cloning the repo. Any thoughts?

chrisb2 commented 6 years ago

It looks like from the error: fatal: unable to connect to github.com that github.com in not contactable by your machine, what happens if you do: ping github.com If this does not work, you may need to check your network setup.

Chris

david-harkey commented 6 years ago

I think you're right, it seems to be a network issue. (I can connect to the internet via GUI apps or apt-get commands, but I can't ping or use git to clone)

In any case, I was able to install the package via sudo pip3 install pi-ina219. Thanks for your help!

GawiQ commented 6 years ago

Hi I had this problem before and managed to fix it with sudo python3 -m pip install git+git://github.com/chrisb2/pi_ina219.git Adafruit_GPIO was indeed not listed on pip3 list.

Unfortunatelly I got some system upgrades and now the following error occurs again: File "/home/pi/Desktop/python-lis3dh-master/LIS3DH_bus1.py", line 2, in <module> from Adafruit_GPIO import I2C ImportError: No module named 'Adafruit_GPIO' but now when I checked the lists Adafruit_GPIO was present on both and installing dependecies for python 3 doesn't seem to work :/

Please help

chrisb2 commented 6 years ago

Try using pip3 to uninstall pi_ina219 and Adafruit_GPIO, check they are no longer listed by pip3 list, then re-install pi_ina219.

Chris

GawiQ commented 6 years ago

Thanks for response. I tried what you suggested but it didn't work. Still got the same error.

chrisb2 commented 6 years ago

Please can you send me a simplied version of the LIS3DH_bus1.py which replicates this issue and I will give it a go myself. This will help to isolate if the issue is in the program or your system.

regards, Chris

On Sat, Mar 3, 2018 at 10:00 AM, GawiQ notifications@github.com wrote:

Thanks for response. I tried what you suggested but it didn't work. Still got the same error.

— You are receiving this because you modified the open/close state. Reply to this email directly, view it on GitHub https://github.com/chrisb2/pi_ina219/issues/2#issuecomment-370050898, or mute the thread https://github.com/notifications/unsubscribe-auth/AC8dV2UyZr7F8lgzXSsoyI0EzPLfObSDks5tabLdgaJpZM4L3C_7 .

chrisb2 commented 6 years ago

One more idea, did you try unistalling Adafruit_GPIO and then following manual install instructions here:

https://github.com/adafruit/Adafruit_Python_GPIO

Chris

On Sat, Mar 3, 2018 at 12:13 PM, Chris Borrill chris.borrill@gmail.com wrote:

Please can you send me a simplied version of the LIS3DH_bus1.py which replicates this issue and I will give it a go myself. This will help to isolate if the issue is in the program or your system.

regards, Chris

On Sat, Mar 3, 2018 at 10:00 AM, GawiQ notifications@github.com wrote:

Thanks for response. I tried what you suggested but it didn't work. Still got the same error.

— You are receiving this because you modified the open/close state. Reply to this email directly, view it on GitHub https://github.com/chrisb2/pi_ina219/issues/2#issuecomment-370050898, or mute the thread https://github.com/notifications/unsubscribe-auth/AC8dV2UyZr7F8lgzXSsoyI0EzPLfObSDks5tabLdgaJpZM4L3C_7 .

GawiQ commented 6 years ago

LIS3DH_bus1.py.gz Manual installation didn't work. Do you think system reinstallation would work? Here is the file

chrisb2 commented 6 years ago

On a new installation of Raspbian I did:

  1. Enabled I2C in raspi-config
  2. Create a python test file containing just the two imports at the top of your file
  3. Ran my test file with python3 -> gave the same import error you get
  4. Installed Adafruit_GPIO with: pip3 install AdaFruit_GPIO
  5. Ran my test file again -> succeeded with no errors

So from this is does look like your system is to blame. So reinstalling Rasbian will work.

Chris

On Sun, Mar 4, 2018 at 12:06 PM, GawiQ notifications@github.com wrote:

LIS3DH_bus1.py.gz https://github.com/chrisb2/pi_ina219/files/1777999/LIS3DH_bus1.py.gz Manual installation didn't work. Do you think system reinstallation would work? Here is the file

— You are receiving this because you modified the open/close state. Reply to this email directly, view it on GitHub https://github.com/chrisb2/pi_ina219/issues/2#issuecomment-370187137, or mute the thread https://github.com/notifications/unsubscribe-auth/AC8dV1HgP2JZYnP2SJ9bT4rTo1uAPXJSks5tayH8gaJpZM4L3C_7 .

GawiQ commented 6 years ago

Did the same and now it works. Thanks man, really appreciate this. Awesome helping you did here :)