(address . guix-patches@gnu.org)
20190713220102.7416-1-mail@cbaines.net
Patch from the upstream repository, see
https://github.com/PyCQA/pycodestyle/issues/786for more details.
* gnu/packages/patches/python-pep8-stdlib-tokenize-compat.patch: New file.
* gnu/packages/python-xyz.scm (python-pep8)[source]: Add it.
---
.../python-pep8-stdlib-tokenize-compat.patch | 35 +++++++++++++++++++
gnu/packages/python-xyz.scm | 3 +-
2 files changed, 37 insertions(+), 1 deletion(-)
create mode 100644 gnu/packages/patches/python-pep8-stdlib-tokenize-compat.patch
Toggle diff (57 lines)
diff --git a/gnu/packages/patches/python-pep8-stdlib-tokenize-compat.patch b/gnu/packages/patches/python-pep8-stdlib-tokenize-compat.patch
new file mode 100644
index 0000000000..f11d8f7be8
--- /dev/null
+++ b/gnu/packages/patches/python-pep8-stdlib-tokenize-compat.patch
@@ -0,0 +1,35 @@
+From 397463014fda3cdefe8d6c9d117ae16d878dc494 Mon Sep 17 00:00:00 2001
+From: Michael Hudson-Doyle <michael.hudson@canonical.com>
+Date: Tue, 25 Sep 2018 14:58:57 +1200
+Subject: [PATCH] Keep compability with stdlib tokenize.py changes
+
+https://github.com/python/cpython/commit/c4ef4896eac86a6759901c8546e26de4695a1389
+is not yet part of any release of Python but has been backported to all
+versions in Git (includeing 2.7!). It causes the tokenize.py module to
+emit a synthetic NEWLINE token for files that do not in fact end with a
+newline, which confuses pycodestyle's checks for blank lines at the end
+of a file. Fortunately the synthetic NEWLINE tokens are easy to detect
+(the token text is "").
+
+Fixes #786
+---
+ pycodestyle.py | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/pycodestyle.py b/pycodestyle.py
+index 0d725d27..fbc3dca3 100755
+--- a/pep8.py
++++ b/pep8.py
+@@ -258,10 +258,10 @@ def trailing_blank_lines(physical_line, lines, line_number, total_lines):
+ """
+ if line_number == total_lines:
+ stripped_last_line = physical_line.rstrip()
+- if not stripped_last_line:
++ if physical_line and not stripped_last_line:
+ return 0, "W391 blank line at end of file"
+ if stripped_last_line == physical_line:
+- return len(physical_line), "W292 no newline at end of file"
++ return len(lines[-1]), "W292 no newline at end of file"
+
+
+ @register_check
diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index a60e1c7e2a..ac43ef9057 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.scm
@@ -6350,7 +6350,8 @@ applications.")
(uri (pypi-uri "pep8" version))
(sha256
(base32
- "002rkl4lsn6x2mxmf8ar00l0m8i3mzrc6pnzz77blyksmpsxa4x1"))))
+ "002rkl4lsn6x2mxmf8ar00l0m8i3mzrc6pnzz77blyksmpsxa4x1"))
+ (patches (search-patches "python-pep8-stdlib-tokenize-compat.patch"))))
(build-system python-build-system)
(home-page "https://pep8.readthedocs.org/")
(synopsis "Python style guide checker")
--
2.22.0