Issues with installing rdflib

[SubaSiva95]

Hi, I am trying to install rdflib through pip to integrate with the dynamo platform. But, I am getting an error message,

"Warning: AttributeError : ‘NoneType’ object has no attribute ‘isatty’ [’ File “”, line 4, in \n’, ’ File “----------------\rdflib\init.py”, line 99, in \n and sys.stderr.isatty()\n’]".

The "init.py" is one of the default files existing within the rdflib folder.

Could anyone help me to resolve this issue?
Thanks

[eggplants]

Related issue and its fix:
tornadoweb/tornado#920
tornadoweb/tornado@689d9c8

[aucampia]

Hi, I am trying to install rdflib through pip to integrate with the dynamo platform. But, I am getting an error message,

"Warning: AttributeError : ‘NoneType’ object has no attribute ‘isatty’ [’ File “”, line 4, in \n’, ’ File “----------------\rdflib\init.py”, line 99, in \n and sys.stderr.isatty()\n’]".

The "init.py" is one of the default files existing within the rdflib folder.

Could anyone help me to resolve this issue? Thanks

Please share the command you use to install it and some details of your environment. Technically, according to python docs sys.stderr should not be None, so I suspect there is something wrong with your environment, thought he code that is causing this error should likely be removed.

[SubaSiva95]

I am using dynamo 2.10 (which is built-in with Revit 2022). I followed "https://github.com/DynamoDS/Dynamo/wiki/Customizing-Dynamo's-Python-3-installation" and installed rdflib through pip.

Based on the previous comments, I added a line in the following section of the (init.py) file.

if (
not hasattr(main, "file")
and sys.stdout is not None
and hasattr(sys.stderr, 'isatty')
and sys.stderr.isatty()
):

Now, I am free from errors, but unfortunately, the results that I get from the script is always null.

[semanticmachinelearning]

Hi I use pycharm and pip to install rdflib but waiting for the whole day still not able to accessing it. I tested on Jupiter notebook, the same thing. I believe there are something wrong to receive the installation package at the moment.