[2.1.x] Capitalized "Python" in docs and comments.

Backport of e90af8bad44341cf8ebd469dac57b61a95667c1d from master.

1 files changed, 1 insertions, 1 deletions

diff --git a/django/test/runner.py b/django/test/runner.py
index 9bd9f2b506..c3201b2393 100644
--- a/django/test/runner.py
+++ b/django/test/runner.py
@@ -611,7 +611,7 @@ class DiscoverRunner:
 
 def is_discoverable(label):
     """
-    Check if a test label points to a python package or file directory.
+    Check if a test label points to a Python package or file directory.
 
     Relative labels like "." and ".." are seen as directories.
     """