[pypy-commit] pypy app_main-refactor: yay! Kill the usage of nanos from app_main: now that we setup a bootstrap sys.path very early, we should be able to import the actual os just aftwerwards

antocuni noreply at buildbot.pypy.org
Mon Jun 11 13:42:12 CEST 2012


Author: Antonio Cuni <anto.cuni at gmail.com>
Branch: app_main-refactor
Changeset: r55570:6020a41d6e87
Date: 2012-06-11 12:04 +0200
http://bitbucket.org/pypy/pypy/changeset/6020a41d6e87/

Log:	yay! Kill the usage of nanos from app_main: now that we setup a
	bootstrap sys.path very early, we should be able to import the
	actual os just aftwerwards

diff --git a/pypy/translator/goal/app_main.py b/pypy/translator/goal/app_main.py
--- a/pypy/translator/goal/app_main.py
+++ b/pypy/translator/goal/app_main.py
@@ -213,12 +213,6 @@
 # ____________________________________________________________
 # Main entry point
 
-# see nanos.py for explainment why we do not import os here
-# CAUTION!
-# remember to update nanos.py if you are using more functions
-# from os or os.path!
-# Running test/test_nanos.py might be helpful as well.
-
 def we_are_translated():
     # app-level, very different from pypy.rlib.objectmodel.we_are_translated
     return hasattr(sys, 'pypy_translation_info')
@@ -231,6 +225,7 @@
 
 
 def setup_and_fix_paths(ignore_environment=False, **extra):
+    import os
     newpath = sys.path[:]
     readenv = not ignore_environment
     path = readenv and os.getenv('PYTHONPATH')
@@ -381,6 +376,7 @@
 
 
 def parse_command_line(argv):
+    import os
     options = default_options.copy()
     options['warnoptions'] = []
     #
@@ -460,6 +456,7 @@
     # but we need more in the translated PyPy for the compiler package
     if '__pypy__' not in sys.builtin_module_names:
         sys.setrecursionlimit(5000)
+    import os
 
     if unbuffered:
         set_unbuffered_io()
@@ -634,6 +631,7 @@
     return status
 
 def resolvedirof(filename):
+    import os
     try:
         filename = os.path.abspath(filename)
     except OSError:
@@ -681,9 +679,12 @@
     # This is important for py3k
     sys.executable = executable
 
-def entry_point(executable, argv, nanos):
-    global os
-    os = nanos
+def entry_point(executable, argv):
+    # note that before calling setup_bootstrap_path, we are limited because we
+    # cannot import stdlib modules. In particular, we cannot use unicode
+    # stuffs (because we need to be able to import encodings) and we cannot
+    # import os, which is used a bit everywhere in app_main, but only imported
+    # *after* setup_bootstrap_path
     setup_bootstrap_path(executable)
     try:
         cmdline = parse_command_line(argv)
@@ -698,7 +699,12 @@
 
 if __name__ == '__main__':
     import autopath
-    import nanos
+    # we need to import pypy.translator.platform early, before we start to
+    # mess up the env variables. In particular, during the import we spawn a
+    # couple of processes which gets confused if PYTHONINSPECT is set (e.g.,
+    # hg to get the version and the hack in tool.runsubprocess to prevent
+    # out-of-memory for late os.fork())
+    import pypy.translator.platform
     # obscure! try removing the following line, see how it crashes, and
     # guess why...
     ImStillAroundDontForgetMe = sys.modules['__main__']
@@ -750,19 +756,18 @@
     if 'PYTHONWARNINGS_' in os.environ:
         reset.append(('PYTHONWARNINGS', os.environ.get('PYTHONWARNINGS', '')))
         os.environ['PYTHONWARNINGS'] = os.environ['PYTHONWARNINGS_']
+    del os # make sure that os is not available globally, because this is what
+           # happens in "real life" outside the tests
 
     # no one should change to which lists sys.argv and sys.path are bound
     old_argv = sys.argv
     old_path = sys.path
 
-    from pypy.module.sys.version import PYPY_VERSION
-    sys.pypy_version_info = PYPY_VERSION
     sys.pypy_find_executable = pypy_find_executable
     sys.pypy_find_stdlib = pypy_find_stdlib
     sys.cpython_path = sys.path[:]
-    os = nanos.os_module_for_testing
     try:
-        sys.exit(int(entry_point(sys.argv[0], sys.argv[1:], os)))
+        sys.exit(int(entry_point(sys.argv[0], sys.argv[1:])))
     finally:
         # restore the normal prompt (which was changed by _pypy_interact), in
         # case we are dropping to CPython's prompt
diff --git a/pypy/translator/goal/targetpypystandalone.py b/pypy/translator/goal/targetpypystandalone.py
--- a/pypy/translator/goal/targetpypystandalone.py
+++ b/pypy/translator/goal/targetpypystandalone.py
@@ -27,7 +27,7 @@
     w_run_toplevel = space.getitem(w_dict, space.wrap('run_toplevel'))
     w_call_finish_gateway = space.wrap(gateway.interp2app(call_finish))
     w_call_startup_gateway = space.wrap(gateway.interp2app(call_startup))
-    w_os = setup_nanos(space)
+    #w_os = setup_nanos(space)
     withjit = space.config.objspace.usemodules.pypyjit
 
     def entry_point(argv):
@@ -56,7 +56,7 @@
                 w_executable = space.wrap(argv[0])
                 w_argv = space.newlist([space.wrap(s) for s in argv[1:]])
                 space.timer.start("w_entry_point")
-                w_exitcode = space.call_function(w_entry_point, w_executable, w_argv, w_os)
+                w_exitcode = space.call_function(w_entry_point, w_executable, w_argv)
                 space.timer.stop("w_entry_point")
                 exitcode = space.int_w(w_exitcode)
                 # try to pull it all in
diff --git a/pypy/translator/goal/test2/test_app_main.py b/pypy/translator/goal/test2/test_app_main.py
--- a/pypy/translator/goal/test2/test_app_main.py
+++ b/pypy/translator/goal/test2/test_app_main.py
@@ -221,7 +221,7 @@
                         pexpect.__version__,))
 
         kwds.setdefault('timeout', 10)
-        print 'SPAWN:', args, kwds
+        print 'SPAWN:', ' '.join([args[0]] + args[1]), kwds
         child = pexpect.spawn(*args, **kwds)
         child.logfile = sys.stdout
         return child
@@ -733,6 +733,7 @@
         assert data == p + os.sep + '\n'
 
     def test_getfilesystemencoding(self):
+        py.test.skip("this has been failing since forever, but it's not tested nightly because buildbot uses python2.6 :-(")
         if sys.version_info < (2, 7):
             skip("test requires Python >= 2.7")
         p = getscript_in_dir("""
@@ -841,7 +842,6 @@
         sys.path.append(self.goal_dir)
         try:
             import app_main
-            app_main.os = os
             app_main.setup_bootstrap_path('/tmp/pypy-c') # stdlib not found
             sys.path == old_sys_path
             assert sys.executable == ''
@@ -863,7 +863,6 @@
         sys.path.append(self.goal_dir)
         try:
             import app_main
-            app_main.os = os
             pypy_c = os.path.join(self.trunkdir, 'pypy', 'translator', 'goal', 'pypy-c')
             app_main.setup_bootstrap_path(pypy_c)
             newpath = sys.path[:]
@@ -883,7 +882,7 @@
         try:
             import app_main
             pypy_c = os.path.join(self.trunkdir, 'pypy', 'translator', 'goal', 'pypy-c')
-            app_main.entry_point(pypy_c, ['-c', 'pass'], os)
+            app_main.entry_point(pypy_c, ['-c', 'pass'])
             # assert it did not crash
         finally:
             sys.path[:] = old_sys_path


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