--- a/mercurial/hgweb/wsgicgi.py	Sat Mar 24 13:38:04 2018 +0900
+++ b/mercurial/hgweb/wsgicgi.py	Sat Mar 24 15:09:33 2018 +0900
@@ -15,13 +15,17 @@
     util,
 )
 
+from ..utils import (
+    procutil,
+)
+
 from . import (
     common,
 )
 
 def launch(application):
-    util.setbinary(util.stdin)
-    util.setbinary(util.stdout)
+    util.setbinary(procutil.stdin)
+    util.setbinary(procutil.stdout)
 
     environ = dict(encoding.environ.iteritems())
     environ.setdefault(r'PATH_INFO', '')
@@ -31,12 +35,12 @@
         if environ[r'PATH_INFO'].startswith(scriptname):
             environ[r'PATH_INFO'] = environ[r'PATH_INFO'][len(scriptname):]
 
-    stdin = util.stdin
+    stdin = procutil.stdin
     if environ.get(r'HTTP_EXPECT', r'').lower() == r'100-continue':
-        stdin = common.continuereader(stdin, util.stdout.write)
+        stdin = common.continuereader(stdin, procutil.stdout.write)
 
     environ[r'wsgi.input'] = stdin
-    environ[r'wsgi.errors'] = util.stderr
+    environ[r'wsgi.errors'] = procutil.stderr
     environ[r'wsgi.version'] = (1, 0)
     environ[r'wsgi.multithread'] = False
     environ[r'wsgi.multiprocess'] = True
@@ -49,7 +53,7 @@
 
     headers_set = []
     headers_sent = []
-    out = util.stdout
+    out = procutil.stdout
 
     def write(data):
         if not headers_set: