Fromstring data type issue and solution in Python3.10 and newer versions

[alikerenciler]

Hello guys,

I downloaded the newer version of OLA API. When I try to collect the DMX data with Python (py3.10), I came across with an error of:
" AttributeError: 'array.array' object has no attribute 'fromstring'"

To solve this I found 2 ways as follows.

**1. Manually arranging the files of OLA library: **

• Go to " .local/lib/python3.10/site-packages/ola/ "
• Open the " OlaClient.py " python script
• Search for "fromstring" and change them as "frombytes" (there were two function naming changed in OLA 0.10.7 lib)

**2. Downgrading Python version: ** (Not recommended)

• Create another python environment with Python 3.8.0, and there will be no problem on receiving DMX data.

Have a nice day ;)

[peternewman]

Thanks for the heads up @alikerenciler .

This was fixed here:
3ff957f

And then improved/made redundant in:
01bd599

I assume from your comment you were running 0.10.7? As this should be in 0.10.9 onwards.

Do you want to give that version a check and confirm it works as expected for you?

[alikerenciler]

The problem relays on that the Python's newer versions have no longer fromstring data type support and I do not know the exact reason. This modification should done in OLA Library for further applications.

[alikerenciler]

Thanks for the updates @peternewman .

The OLA 0.10.9 version is not available on the PyPI webpage. https://pypi.org/project/ola/#history

Even if I try to download with pip the library yields this error of:

$ pip3 install ola==0.10.9
Defaulting to user installation because normal site-packages is not writeable
ERROR: Could not find a version that satisfies the requirement ola==0.10.9 (from versions: 0.10.7)