test/py: Use range() rather than xrange()

In python 3.x the xrange() function has been removed, and range()
returns an iterator much like Python 2.x's xrange(). Simply use range()
in place of xrange() in order to work on both python 2.x & 3.x. This
will mean a small cost on python 2.x since range() will return a list
there rather than an iterator, but the cost should be negligible.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>

test/py/u_boot_console_sandbox.py

@@ -81,7 +81,7 @@ class ConsoleSandbox(ConsoleBase):
 
         p = self.p
         self.p = None
-        for i in xrange(100):
+        for i in range(100):
             ret = not p.isalive()
             if ret:
                 break

test/py/u_boot_spawn.py

@@ -134,7 +134,7 @@ class Spawn(object):
             the expected time.
         """
 
-        for pi in xrange(len(patterns)):
+        for pi in range(len(patterns)):
             if type(patterns[pi]) == type(''):
                 patterns[pi] = re.compile(patterns[pi])
 
@@ -143,7 +143,7 @@ class Spawn(object):
             while True:
                 earliest_m = None
                 earliest_pi = None
-                for pi in xrange(len(patterns)):
+                for pi in range(len(patterns)):
                     pattern = patterns[pi]
                     m = pattern.search(self.buf)
                     if not m:
@@ -198,7 +198,7 @@ class Spawn(object):
         """
 
         os.close(self.fd)
-        for i in xrange(100):
+        for i in range(100):
             if not self.isalive():
                 break
             time.sleep(0.1)

test/py/u_boot_utils.py

@@ -120,7 +120,7 @@ def wait_until_open_succeeds(fn):
         An open file handle to the file.
     """
 
-    for i in xrange(100):
+    for i in range(100):
         fh = attempt_to_open_file(fn)
         if fh:
             return fh
@@ -143,7 +143,7 @@ def wait_until_file_open_fails(fn, ignore_errors):
         Nothing.
     """
 
-    for i in xrange(100):
+    for i in range(100):
         fh = attempt_to_open_file(fn)
         if not fh:
             return