Do not attempt to rewrite non-source files (#5490)

Do not attempt to rewrite non-source files
2019-06-25 20:43:23 -03:00 · 2019-06-25 20:43:23 -03:00 · aaf40314d1
parent 1aefb24b37 b991810f32
commit aaf40314d1
1 changed files with 2 additions and 0 deletions
--- a/src/_pytest/assertion/rewrite.py
+++ b/src/_pytest/assertion/rewrite.py
@ -70,6 +70,8 @@ class AssertionRewritingHook:
            # python3.5 - python3.6: `namespace`
            # python3.7+: `None`
            or spec.origin in {None, "namespace"}
+            # we can only rewrite source files
+            or not isinstance(spec.loader, importlib.machinery.SourceFileLoader)
            # if the file doesn't exist, we can't rewrite it
            or not os.path.exists(spec.origin)
        ):