simplify (for line in f.readlines() -> for line in f)

src/allmydata/blacklist.py

@@ -35,7 +35,7 @@ class Blacklist(object):
             if self.last_mtime is None or current_mtime > self.last_mtime:
                 self.entries.clear()
                 with open(self.blacklist_fn, "r") as f:
-                    for line in f.readlines():
+                    for line in f:
                         line = line.strip()
                         if not line or line.startswith("#"):
                             continue

src/allmydata/control.py

@@ -20,7 +20,7 @@ def get_memory_usage():
     stats = {}
     try:
         with open("/proc/self/status", "r") as f:
-            for line in f.readlines():
+            for line in f:
                 name, right = line.split(":",2)
                 if name in stat_names:
                     assert right.endswith(" kB\n")

src/allmydata/frontends/auth.py

@@ -32,7 +32,7 @@ class AccountFileChecker(object):
         self.pubkeys = {}
         self.rootcaps = {}
         with open(abspath_expanduser_unicode(accountfile), "r") as f:
-            for line in f.readlines():
+            for line in f:
                 line = line.strip()
                 if line.startswith("#") or not line:
                     continue

src/allmydata/scripts/common.py

@@ -139,7 +139,7 @@ def get_aliases(nodedir):
         pass
     try:
         with codecs.open(aliasfile, "r", "utf-8") as f:
-            for line in f.readlines():
+            for line in f:
                 line = line.strip()
                 if line.startswith("#") or not line:
                     continue