try

Dockerfile

@@ -1,11 +1,8 @@
 FROM ubuntu:latest
 
 RUN apt-get update && \
-    apt-get install -y python3-pip
-
-RUN pip3 install --user kaggle pandas scikit-learn
-
-ENV PATH="/root/.local/bin:${PATH}"
+    apt-get install -y python3-pip && \
+    pip3 install kaggle pandas scikit-learn
 
 COPY data_processing.sh .
 

data_processing.py

@@ -1,6 +1,6 @@
-import scikit-learn as sklearn
-from scikit-learn.preprocessing import OneHotEncoder
-from scikit-learn.model_selection import train_test_split
+import sklearn
+from sklearn.preprocessing import OneHotEncoder
+from sklearn.model_selection import train_test_split
 import pandas as pd
 import subprocess