python: Better use iterators

In Python 2, iterators had a .next() method.

In Python 3, instead they have a .__next__() method, which is
automatically called by the next() builtin.

In addition, it is better to use the iter() builtin to create an
iterator, rather than calling its __iter__() method.

These were also introduced in Python 2.6, so using it makes the script
compatible with Python 2 and 3.

Signed-off-by: Mathieu Bridon <[email protected]>
Reviewed-by: Eric Engestrom <[email protected]>
Reviewed-by: Dylan Baker <[email protected]>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/compiler/nir/nir_algebraic.py b/src/compiler/nir/nir_algebraic.py
index 8c0b530f698..fda72d3c69e 100644
--- a/src/compiler/nir/nir_algebraic.py
+++ b/src/compiler/nir/nir_algebraic.py
@@ -56,7 +56,7 @@ class VarSet(object):
    def __getitem__(self, name):
       if name not in self.names:
          assert not self.immutable, "Unknown replacement variable: " + name
-         self.names[name] = self.ids.next()
+         self.names[name] = next(self.ids)
 
       return self.names[name]
 
@@ -468,7 +468,7 @@ condition_list = ['true']
 
 class SearchAndReplace(object):
    def __init__(self, transform):
-      self.id = _optimization_ids.next()
+      self.id = next(_optimization_ids)
 
       search = transform[0]
       replace = transform[1]