[svn r63028] allow py.test --exec=python2.4 -n 3 to work

and fix some bugs from doing so.

--HG--
branch : trunk

py/doc/execnet.txt

@@ -140,7 +140,7 @@ To specify Gateways with a String::
     >>> gwspec = py.execnet.GatewaySpec("popen")
     >>> gw = gwspec.makegateway()
     >>> ex = gw.remote_exec("import sys ; channel.send(sys.executable)").receive()
-    >>> assert ex == py.std.sys.executable
+    >>> assert ex == py.std.sys.executable, (ex, py.std.sys.executable)
     >>>
 
 current gateway types and specifications

py/execnet/gwmanage.py

@@ -24,7 +24,7 @@ from py.__.execnet.channel import RemoteError
 NO_ENDMARKER_WANTED = object()
 
 class GatewaySpec(object):
-    python = "python" 
+    python = None
     def __init__(self, spec, defaultjoinpath="pyexecnetcache"):
         if spec == "popen" or spec.startswith("popen:"):
             parts = spec.split(":", 2)
@@ -35,6 +35,9 @@ class GatewaySpec(object):
                 self.joinpath = parts.pop(0)
             else:
                 self.joinpath = ""
+            if not self.python:
+                self.python = py.std.sys.executable
+
         elif spec.startswith("socket:"):
             parts = spec[7:].split(":", 2)
             self.address = parts.pop(0)

py/test/dsession/hostmanage.py

@@ -6,7 +6,11 @@ from py.__.test import event
 
 def getconfiggwspecs(config):
     if config.option.numprocesses:
-        gwspecs = ['popen'] * config.option.numprocesses
+        if config.option.executable:
+            s = 'popen:%s' % config.option.executable
+        else:
+            s = 'popen'
+        gwspecs = [s] * config.option.numprocesses
     else:
         gwspecs = config.option.gateways
         if not gwspecs:

py/test/dsession/masterslave.py

@@ -120,11 +120,8 @@ class SlaveNode(object):
         self.sendevent("itemtestreport", testrep)
 
 
-def makehostup(host=None):
-    from py.__.execnet.gwmanage import GatewaySpec
+def makehostup(host="INPROCESS"):
     import sys
-    if host is None:
-        host = GatewaySpec("localhost")
     platinfo = {}
     for name in 'platform', 'executable', 'version_info':
         platinfo["sys."+name] = getattr(sys, name)

py/test/plugin/pytest_pytester.py

@@ -232,7 +232,7 @@ class TmpTestdir:
         else:
             script = bindir.join(scriptname)
         assert script.check()
-        return self.run(script, *args)
+        return self.run(py.std.sys.executable, script, *args)
 
     def runpytest(self, *args):
         p = py.path.local.make_numbered_dir(prefix="runpytest-", 

py/test/plugin/pytest_terminal.py

@@ -98,7 +98,7 @@ class TerminalReporter:
 
     def pyevent_hostup(self, event):
         d = event.platinfo.copy()
-        d['host'] = event.host.address
+        d['host'] = getattr(event.host, 'address', event.host)
         d['version'] = repr_pythonversion(d['sys.version_info'])
         self.write_line("HOSTUP: %(host)s %(sys.platform)s "
                       "%(sys.executable)s - Python %(version)s" %
@@ -325,7 +325,7 @@ class TestTerminal:
         rep = TerminalReporter(item.config, linecomp.stringio)
         rep.pyevent_hostup(makehostup())
         linecomp.assert_contains_lines([
-            "*localhost %s %s - Python %s" %(sys.platform, 
+            "*inline %s %s - Python %s" %(sys.platform, 
             sys.executable, repr_pythonversion(sys.version_info))
         ])
 

py/test/testing/acceptance_test.py

@@ -179,7 +179,7 @@ class TestPyTest:
         verinfo = ".".join(map(str, py.std.sys.version_info[:3]))
         extra = result.stdout.fnmatch_lines([
             "*===== test session starts ====*",
-            "*localhost* %s %s - Python %s*" %(
+            "HOSTUP*INPROCESS* %s %s - Python %s*" %(
                     py.std.sys.platform, py.std.sys.executable, verinfo),
             "*test_header_trailer_info.py .",
             "=* 1 passed in *.[0-9][0-9] seconds *=", 
@@ -379,7 +379,7 @@ class TestInteractive:
         return spawn
 
     def requirespexpect(self, version_needed):
-        import pexpect
+        pexpect = py.test.importorskip("pexpect")
         ver = tuple(map(int, pexpect.__version__.split(".")))
         if ver < version_needed:
             py.test.skip("pexpect version %s needed" %(".".join(map(str, version_needed))))