2to3: Remove xreadlines and replace f.readlines() by f where valid.

An open file `f` has been an iterator since python2.3 and
`f.xreadlines()` is no longer needed, so replace it with `f`. Also
replace `f.readlines()` with `f` where an iterator will do. The
replacement of `f.readlines()` is not critical because it is a list in
both python2 and python3, but the code is a bit cleaner.

Closes #3093

1 files changed, 2 insertions, 2 deletions

diff --git a/tools/c_coverage/c_coverage_report.py b/tools/c_coverage/c_coverage_report.py
index 48f1eb8dc..e4522bd92 100755
--- a/tools/c_coverage/c_coverage_report.py
+++ b/tools/c_coverage/c_coverage_report.py
@@ -58,7 +58,7 @@ class SourceFile:
 
     def write_text(self, fd):
         source = open(self.path, "r")
-        for i, line in enumerate(source.readlines()):
+        for i, line in enumerate(source):
             if i + 1 in self.lines:
                 fd.write("> ")
             else:
@@ -128,7 +128,7 @@ def collect_stats(files, fd, pattern):
 
     current_file = None
     current_function = None
-    for i, line in enumerate(fd.readlines()):
+    for i, line in enumerate(fd):
         if re.match("f[lie]=.+", line):
             path = line.split('=', 2)[1].strip()
             if os.path.exists(path) and re.search(pattern, path):