[libgpiod][PATCH v3 1/2] bindings: python: fix line request by name with multiple entries

[Bartosz Golaszewski <brgl@bgdev.pl>]

From: Chuang Zhu <git@chuang.cz>

When multiple entries are requested using line names in
Chip.request_lines(), only the the last entry is added to
LineRequest._name_map, causing a ValueError when trying to use functions
like LineRequest.set_value() on any former entries.

Move the required variables to the correct scope.

Signed-off-by: Chuang Zhu <git@chuang.cz>
Co-developed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
[Bartosz: tweak the commit message]
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
 bindings/python/gpiod/chip.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/bindings/python/gpiod/chip.py b/bindings/python/gpiod/chip.py
index 47bda11..7692ba4 100644
--- a/bindings/python/gpiod/chip.py
+++ b/bindings/python/gpiod/chip.py
@@ -279,11 +279,12 @@ class Chip:
         else:
             mapped_output_values = None
 
+        name_map = dict()
+        offset_map = dict()
+        global_output_values = list()
+
         for lines, settings in config.items():
             offsets = list()
-            name_map = dict()
-            offset_map = dict()
-            global_output_values = list()
 
             if isinstance(lines, int) or isinstance(lines, str):
                 lines = (lines,)
-- 
2.43.0