label code blocks

1 files changed, 6 insertions, 0 deletions

diff --git a/doc/en/usage.rst b/doc/en/usage.rst
index 75f5aacfd..f29e018a1 100644
--- a/doc/en/usage.rst
+++ b/doc/en/usage.rst
@@ -756,16 +756,22 @@ Calling pytest from Python code
 
 You can invoke ``pytest`` from Python code directly::
 
+.. code-block:: python
+
     pytest.main()
 
 this acts as if you would call "pytest" from the command line.
 It will not raise ``SystemExit`` but return the exitcode instead.
 You can pass in options and arguments::
 
+.. code-block:: python
+
     pytest.main(['-x', 'mytestdir'])
 
 You can specify additional plugins to ``pytest.main``::
 
+.. code-block:: python
+
     # content of myinvoke.py
     import pytest
     class MyPlugin(object):