Change the way string values are interpreted from build.executable - now they must be quoted or otherwise escaped suitable for parsing by shlex.split.

1 files changed, 9 insertions, 0 deletions

diff --git a/setuptools/tests/test_easy_install.py b/setuptools/tests/test_easy_install.py
index e1f06788..a3d5b0a9 100644
--- a/setuptools/tests/test_easy_install.py
+++ b/setuptools/tests/test_easy_install.py
@@ -505,3 +505,12 @@ class TestCommandSpec:
             cmd = CommandSpec.from_environment()
         assert len(cmd) == 1
         assert cmd.as_header().startswith('#!"')
+
+    def test_from_simple_string_uses_shlex(self):
+        """
+        In order to support `executable = /usr/bin/env my-python`, make sure
+        from_param invokes shlex on that input.
+        """
+        cmd = CommandSpec.from_param('/usr/bin/env my-python')
+        assert len(cmd) == 2
+        assert '"' not in cmd.as_header()