Zachary Turner c1b7cd72db Python 3 - Turn on absolute imports, and fix existing imports.
Absolute imports were introduced in Python 2.5 as a feature
(e.g. from __future__ import absolute_import), and made default
in Python 3.

When absolute imports are enabled, the import system changes in
a couple of ways:

1) The `import foo` syntax will *only* search sys.path.  If `foo`
   isn't in sys.path, it won't be found.  Period.  Without absolute
   imports, the import system will also search the same directory
   that the importing file resides in, so that you can easily
   import from the same folder.

2) From inside a package, you can use a dot syntax to refer to higher
   levels of the current package.  For example, if you are in the
   package lldbsuite.test.utility, then ..foo refers to
   lldbsuite.test.foo.  You can use this notation with the
   `from X import Y` syntax to write intra-package references.  For
   example, using the previous locationa s a starting point, writing
   `from ..support import seven` would import lldbsuite.support.seven

Since this is now the default behavior in Python 3, this means that
importing from the same directory with `import foo` *no longer works*.
As a result, the only way to have portable code is to force absolute
imports for all versions of Python.

See PEP 0328 [https://www.python.org/dev/peps/pep-0328/] for more
information about absolute and relative imports.

Differential Revision: http://reviews.llvm.org/D14342
Reviewed By: Todd Fiala

llvm-svn: 252191
2015-11-05 19:22:28 +00:00

64 lines
2.0 KiB
Python

from __future__ import print_function
from __future__ import absolute_import
# System modules
import os
import sys
# Third-party modules
import pexpect
# LLDB Modules
import lldb
from .lldbtest import *
from . import lldbutil
class PExpectTest(TestBase):
mydir = TestBase.compute_mydir(__file__)
def setUp(self):
TestBase.setUp(self)
def launchArgs(self):
pass
def launch(self, timeout=None):
if timeout is None: timeout = 30
logfile = sys.stdout if self.TraceOn() else None
self.child = pexpect.spawn('%s %s' % (lldbtest_config.lldbExec, self.launchArgs()), logfile=logfile)
self.child.timeout = timeout
self.timeout = timeout
def expect(self, patterns=None, timeout=None, exact=None):
if patterns is None: return None
if timeout is None: timeout = self.timeout
if exact is None: exact = False
if exact:
return self.child.expect_exact(patterns, timeout=timeout)
else:
return self.child.expect(patterns, timeout=timeout)
def expectall(self, patterns=None, timeout=None, exact=None):
if patterns is None: return None
if timeout is None: timeout = self.timeout
if exact is None: exact = False
for pattern in patterns:
self.expect(pattern, timeout=timeout, exact=exact)
def sendimpl(self, sender, command, patterns=None, timeout=None, exact=None):
sender(command)
return self.expect(patterns=patterns, timeout=timeout, exact=exact)
def send(self, command, patterns=None, timeout=None, exact=None):
return self.sendimpl(self.child.send, command, patterns, timeout, exact)
def sendline(self, command, patterns=None, timeout=None, exact=None):
return self.sendimpl(self.child.sendline, command, patterns, timeout, exact)
def quit(self, gracefully=None):
if gracefully is None: gracefully = True
self.child.sendeof()
self.child.close(force=not gracefully)
self.child = None