MAINT: remove redundant open() modes and io.open() alias

1 files changed, 3 insertions, 3 deletions

diff --git a/runtests.py b/runtests.py
index fea29a10d..5bdb6cf22 100755
--- a/runtests.py
+++ b/runtests.py
@@ -220,7 +220,7 @@ def main(argv):
             # Don't use subprocess, since we don't want to include the
             # current path in PYTHONPATH.
             sys.argv = extra_argv
-            with open(extra_argv[0], 'r') as f:
+            with open(extra_argv[0]) as f:
                 script = f.read()
             sys.modules['__main__'] = types.ModuleType('__main__')
             ns = dict(__name__='__main__',
@@ -540,7 +540,7 @@ def build_project(args):
         print("Build OK")
     else:
         if not args.show_build_log:
-            with open(log_filename, 'r') as f:
+            with open(log_filename) as f:
                 print(f.read())
             print("Build failed!")
         sys.exit(1)
@@ -624,7 +624,7 @@ def asv_substitute_config(in_config, out_config, **custom_vars):
 
     vars_hash = sdbm_hash(custom_vars, os.path.getmtime(in_config))
     try:
-        with open(out_config, "r") as wfd:
+        with open(out_config) as wfd:
             hash_line = wfd.readline().split('hash:')
             if len(hash_line) > 1 and int(hash_line[1]) == vars_hash:
                 return True