style: Manual fixes for for-loop-writes (FURB122): Use of f.write i…

…n a for loop

lib/gis/testsuite/test_gis_lib_getl.py

@@ -29,10 +29,9 @@ def read_lines_and_assert(self, get_line_function, newline):
         """Write and read lines and then assert they are as expected"""
         lines = ["Line 1", "Line 2", "Line 3"]
         with open(self.file_path, mode="w", newline=newline) as stream:
-            for line in lines:
-                # Python text newline here.
-                # The specific newline is added by the stream.
-                stream.write(f"{line}\n")
+            # Python text newline here.
+            # The specific newline is added by the stream.
+            stream.writelines(f"{line}\n" for line in lines)
 
         file_ptr = self.libc.fopen(str(self.file_path).encode("utf-8"), b"r")
         if not file_ptr:

python/grass/gunittest/testsuite/test_checkers.py

@@ -369,17 +369,14 @@ class TestMd5Sums(TestCase):
     @classmethod
     def setUpClass(cls):
         with open(cls.correct_file_name_platform_nl, "w") as f:
-            for line in CORRECT_LINES:
-                # \n should be converted to platform newline
-                f.write(line + "\n")
+            # \n should be converted to platform newline
+            f.writelines(line + "\n" for line in CORRECT_LINES)
         with open(cls.correct_file_name_unix_nl, "w") as f:
-            for line in CORRECT_LINES:
-                # binary mode will write pure \n
-                f.write(line + "\n")
+            # binary mode will write pure \n
+            f.writelines(line + "\n" for line in CORRECT_LINES)
         with open(cls.wrong_file_name, "w") as f:
-            for line in INCORRECT_LINES:
-                # \n should be converted to platform newline
-                f.write(line + "\n")
+            # \n should be converted to platform newline
+            f.writelines(line + "\n" for line in INCORRECT_LINES)
 
     @classmethod
     def tearDownClass(cls):