some quick py3 fixes

src/z3c/recipe/compattest/README.txt

@@ -55,10 +55,10 @@ declared a (superfluous) test dependency on ``zope.dottedname``, which is
 picked up:
 
 >>> try:
-...     print 'start'
+...     print('start')
 ...     cat('parts', 'compattest-z3c.recipe.compattest', 'site-packages', 'site.py')
 ... except IOError:
-...     print 'start'
+...     print('start')
 ...     # When the tests are run from a virtualenv, the bin scripts are created
 ...     # in a different location.
 ...     cat('bin', 'compattest-z3c.recipe.compattest')
@@ -76,7 +76,7 @@ dependencies are also picked up, for instance zc.buildout:
 ... recipe = z3c.recipe.compattest
 ... include-dependencies = z3c.recipe.compattest
 ... """)
->>> print 'start', system(buildout)
+>>> print('start', system(buildout))
 start...
 Generated script '/sample-buildout/bin/compattest-zc.buildout'.
 ...
@@ -103,7 +103,7 @@ the ``exclude`` option:
 ... include-dependencies = z3c.recipe.compattest
 ... exclude = zc.buildout
 ... """)
->>> print 'start', system(buildout)
+>>> print('start', system(buildout))
 start...
 Generated script '/sample-buildout/bin/compattest'...
 
@@ -161,10 +161,10 @@ that depends on zope2 < 2.12:
 ... """)
 >>> ignore = system(buildout)
 >>> try:
-...     print 'start'
+...     print('start')
 ...     cat('parts', 'compattest-z3c.recipe.compattest', 'site-packages', 'site.py')
 ... except IOError:
-...     print 'start'
+...     print('start')
 ...     # When the tests are run from a virtualenv, the bin scripts are created
 ...     # in a different location.
 ...     cat('bin', 'compattest-z3c.recipe.compattest')

src/z3c/recipe/compattest/runner.py

@@ -1,18 +1,22 @@
-import StringIO
 import os.path
 import subprocess
 import sys
 import time
 import pickle
 
+try:
+    from StringIO import StringIO
+except ImportError:
+    from io import StringIO
+
 
 def usage():
-    print """
+    print("""
 usage: %s [OPTIONS]
 
 All given options will be passed to each test runner. To know which
 options you can use, refer to the test runner documentation.
-""" % sys.argv[0]
+""" % sys.argv[0])
 
 windoze = sys.platform.startswith('win')
 
@@ -23,7 +27,7 @@ def __init__(self, script, args):
         self.script = script
         self.args = args
         self.name = os.path.basename(script)
-        self.output = StringIO.StringIO()
+        self.output = StringIO()
         self.exitcode = None
 
     def start(self):
@@ -52,7 +56,7 @@ def poll(self):
         else:
             # We're not done, so just get some
             data = self.process.stdout.readline()
-        self.output.write(data.replace('\r\n', '\n'))
+        self.output.write(data.replace(b'\r\n', b'\n').decode('utf-8'))
 
 
 def main(max_jobs, *scripts, **options):
@@ -69,7 +73,7 @@ def main(max_jobs, *scripts, **options):
     # the slowest tests first.
     stat_file_name = os.path.join(os.path.expanduser('~'), '.zope.teststats')
     try:
-        stat_file = open(stat_file_name, 'r')
+        stat_file = open(stat_file_name, 'rb')
     except IOError:
         stats = {}
     else:
@@ -92,27 +96,27 @@ def main(max_jobs, *scripts, **options):
             completed.append(job)
             running.remove(job)
             if job.exitcode:
-                print "%s failed with:" % job.name
-                print job.output.getvalue()
+                print("%s failed with:" % job.name)
+                print(job.output.getvalue())
 
         while (len(running) < max_jobs) and scripts:
             script = scripts.pop(0)
             job = Job(script, sys.argv[1:])
-            print "Running %s" % job.name
+            print("Running %s" % job.name)
             job.start()
             running.append(job)
 
     # Result output
     failures = [job for job in completed if job.exitcode]
-    print "%d failure(s)." % len(failures)
+    print("%d failure(s)." % len(failures))
     for job in failures:
-        print "-", job.name
+        print("- %s" % job.name)
 
     # Store statistics
     for job in completed:
         stats[job.name] = job.end - job.start
     try:
-        stat_file = open(stat_file_name, 'w')
+        stat_file = open(stat_file_name, 'wb')
     except IOError:
         # Statistics aren't that important. Just ignore that.
         pass

src/z3c/recipe/compattest/runner.txt

@@ -19,7 +19,7 @@ failures.
     ... #!%s
     ... import time
     ... time.sleep(1)
-    ... print 'ok' ''' % sys.executable, ok_script)
+    ... print('ok' ''' % sys.executable, ok_script))
 
     >>> failure_script = os.path.join(sample_buildout, 'test-failure')
     >>> _ = _create_script('''\