diff --git a/modules/lang/python/doctor.el b/modules/lang/python/doctor.el
index 2fcb5d7fb..e4979e5ea 100644
--- a/modules/lang/python/doctor.el
+++ b/modules/lang/python/doctor.el
@@ -5,7 +5,7 @@
          "This module requires (:tools lsp)")
 
 (if (not (executable-find "python"))
-    (warn! "Python isn't installed.")
+    (error! "Python isn't installed.")
   (unless (featurep! +lsp)
     (unless (zerop (shell-command "python -c 'import setuptools'"))
       (warn! "setuptools wasn't detected, which anaconda-mode requires"))))
@@ -20,6 +20,28 @@
   (unless (executable-find "conda")
     (warn! "Couldn't find conda in your PATH")))
 
+(when (featurep! +cython)
+  (unless (executable-find "cython")
+    (warn! "Couldn't find cython. cython-mode will not work.")))
+
 (when (featurep! +ipython)
   (unless (executable-find "ipython")
     (warn! "Couldn't find ipython in your PATH")))
+
+(unless (executable-find "pytest")
+  (warn! "Couldn't find pytest. Running tests through pytest will not work."))
+
+(unless (executable-find "nosetests")
+  (warn! "Couldn't find nosetests. Running tests through nose will not work."))
+
+(unless (executable-find "pipenv")
+  (warn! "Couldn't find pipenv. pipenv support will not work."))
+
+(unless (executable-find "isort")
+  (warn! "Couldn't find isort. Import sorting will not work."))
+
+(when (featurep! :editor format)
+  (unless (executable-find "pyflakes")
+    (warn! "Couldn't find pyflakes. Import management will not work."))
+  (unless (executable-find "black")
+    (warn! "Couldn't find black. Code formatting will not work.")))