Creating directories within python script, os.mkdir causing issues

Hello, I want to do something very simpple. I would like to create directories within my output or input folders that currently do not exist. Normally this would easily be achievable through the python command os.mkdir. Here is my code:

FileNotFoundError                         Traceback (most recent call last)
<ipython-input-29-3b604d987ec9> in <module>()
     19 newoutput = os.path.join(outputdir,'newdir')
     20 print(newoutput)
---> 21 os.mkdir(newoutput)

however I get the error

import dataiku
import pandas as pd, numpy as np
from dataiku import pandasutils as pdu
import os

# Read recipe inputs
test = dataiku.Folder("SZxomfdY")
test_info = test.get_info()

# Write recipe outputs
outputfolder = dataiku.Folder("DBryoOH2")
outputfolder_info = outputfolder.get_info()

#for file in test.list_paths_in_partition():
    #print(file)
    
outputdir = outputfolder_info['accessInfo']['root']
newoutput = os.path.join(outputdir,'newdir')
print(newoutput)
os.mkdir(newoutput)

I don't understand though, it can't locate the folder however it shouldn't be locating the folder, it should be making the folder. Does anyone have any idea what's going on?