diff --git a/tests/pythontest.spec b/tests/pythontest.spec
index 182ba59..3b707c5 100644
--- a/tests/pythontest.spec
+++ b/tests/pythontest.spec
@@ -1,11 +1,18 @@
 %global basedir /opt/test/byte_compilation
 
+# We have 3 different ways of bytecompiling: for 3.9+, 3.4-3.8, and 2.7
+# Test with a representative of each.
+%global python36_sitelib /usr/lib/python3.6/site-packages
+%global python27_sitelib /usr/lib/python2.7/site-packages
+
 Name:           pythontest
 Version:        0
 Release:        0
 Summary:        ...
 License:        MIT
 BuildRequires:  python3-devel
+BuildRequires:  python3.6
+BuildRequires:  python2.7
 
 %description
 ...
@@ -23,15 +30,26 @@ echo "print()" > %{buildroot}%{basedir}/directory/to/test/recursion/file_in_dir.
 mkdir -p %{buildroot}%{python3_sitelib}/directory/
 echo "print()" > %{buildroot}%{python3_sitelib}/directory/file.py
 
+mkdir -p %{buildroot}%{python36_sitelib}/directory/
+echo "print()" > %{buildroot}%{python36_sitelib}/directory/file.py
+
+mkdir -p %{buildroot}%{python27_sitelib}/directory/
+echo "print()" > %{buildroot}%{python27_sitelib}/directory/file.py
+
 %check
-LOCATIONS="%{buildroot}%{basedir} %{buildroot}%{python3_sitelib}/directory/"
+LOCATIONS="
+    %{buildroot}%{basedir}
+    %{buildroot}%{python3_sitelib}/directory/
+    %{buildroot}%{python36_sitelib}/directory/
+    %{buildroot}%{python27_sitelib}/directory/
+"
 
 # Count .py and .pyc files
 PY=$(find $LOCATIONS -name "*.py" | wc -l)
-PYC=$(find $LOCATIONS -name "*.pyc" | wc -l)
+PYC=$(find $LOCATIONS -name "*.py[co]" | wc -l)
 
-# We should have 3 .py files
-test $PY -eq 3
+# We should have 5 .py files (3 for python3, one each for 3.6 & 2.7)
+test $PY -eq 5
 
 # Every .py file should be byte-compiled to two .pyc files (optimization level 0 and 1)
 # so we should have two times more .pyc files than .py files
@@ -43,7 +61,7 @@ test $(expr $PY \* 2) -eq $PYC
 # number of source files. (Or be smaller, if the dupe detection is done
 # across all files.)
 
-INODES=$(stat --format %i $(find $LOCATIONS -name "*.pyc") | sort -u | wc -l)
+INODES=$(stat --format %i $(find $LOCATIONS -name "*.py[co]") | sort -u | wc -l)
 test $PY -ge $INODES
 
 
@@ -51,3 +69,5 @@ test $PY -ge $INODES
 %pycached %{basedir}/file.py
 %pycached %{basedir}/directory/to/test/recursion/file_in_dir.py
 %pycached %{python3_sitelib}/directory/file.py
+%pycached %{python36_sitelib}/directory/file.py
+%{python27_sitelib}/directory/file.py*
diff --git a/tests/tests.yml b/tests/tests.yml
index 117b999..1c0478a 100644
--- a/tests/tests.yml
+++ b/tests/tests.yml
@@ -26,4 +26,5 @@
     - python3-devel
     - python3-pytest
     - python3.6
+    - python2.7