diff --git a/.github/workflows/pylint.yml b/.github/workflows/pylint.yml
index 4548dc49..47a068d9 100644
--- a/.github/workflows/pylint.yml
+++ b/.github/workflows/pylint.yml
@@ -108,6 +108,7 @@ jobs:
         git commit -m "Add .github/.pylint_cache on push event"
 
     - name: Push changes
+      if: github.event_name == 'push'
       uses: ad-m/github-push-action@master
       with:
         github_token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/PQAnalysis/type_checking.py b/PQAnalysis/type_checking.py
index 93b5bcab..7ce821b9 100644
--- a/PQAnalysis/type_checking.py
+++ b/PQAnalysis/type_checking.py
@@ -1,3 +1,7 @@
+"""
+A module for type checking of arguments passed to functions at runtime.
+"""
+
 import logging
 
 from decorator import decorator
diff --git a/tests/__init__.py b/tests/__init__.py
index 9ea12d19..f42913fa 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -1,3 +1,7 @@
+"""
+Unit tests for the PQAnalysis package.
+"""
+
 import os
 
 os.environ['PQANALYSIS_BEARTYPE_LEVEL'] = "RELEASE"
diff --git a/tests/analysis/rdf/test_api.py b/tests/analysis/rdf/test_api.py
index 34c6e6d6..ce7c446b 100644
--- a/tests/analysis/rdf/test_api.py
+++ b/tests/analysis/rdf/test_api.py
@@ -1,4 +1,8 @@
-import pytest
+"""
+A module to test the RDF API.
+"""
+
+import pytest  # pylint: disable=unused-import
 
 from PQAnalysis.analysis.rdf.api import rdf
 from PQAnalysis.type_checking import _get_type_error_message