summaryrefslogtreecommitdiff
path: root/setuptools/dist.py
diff options
context:
space:
mode:
Diffstat (limited to 'setuptools/dist.py')
-rw-r--r--setuptools/dist.py8
1 files changed, 4 insertions, 4 deletions
diff --git a/setuptools/dist.py b/setuptools/dist.py
index 8e2111a5..848d6b0f 100644
--- a/setuptools/dist.py
+++ b/setuptools/dist.py
@@ -145,11 +145,11 @@ def read_pkg_file(self, file):
def single_line(val):
- # quick and dirty validation for description pypa/setuptools#1390
+ """Validate that the value does not have line breaks."""
+ # Ref: https://github.com/pypa/setuptools/issues/1390
if '\n' in val:
- # TODO after 2021-07-31: Replace with `raise ValueError("newlines not allowed")`
- warnings.warn("newlines not allowed and will break in the future")
- val = val.replace('\n', ' ')
+ raise ValueError('Newlines are not allowed')
+
return val