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import gettext # noqa: F401; pylint: disable=unused-import
import importlib
import locale
import sys
__all__ = ('string_types', 'IS_PYTHON2', 'IS_PYTHON3', 'httplib', 'unicode_type', 'raise_with_traceback')
IS_PYTHON2 = sys.version_info < (3,)
IS_PYTHON3 = not IS_PYTHON2
string_types = ()
# Python 2 code
if IS_PYTHON2:
import httplib
string_types = (str, globals()['__builtins__']['unicode'])
unicode_type = string_types[1]
from leapp.compatpy2only import raise_with_traceback
builtins_dict = globals()['__builtins__']
def gettext_setup(t):
def us(u):
if isinstance(u, globals()['__builtins__']['unicode']):
return u
return unicode_type(u)
def singular(msg):
return t.ugettext(us(msg))
def plural(msg1, msg2, n):
return t.ungettext(us(msg1), us(msg2), n)
return singular, plural
def setlocale(category, loc=None):
locale.setlocale(category, loc.encode('utf-8') if loc else None)
# Python 3 code
else:
import http.client as httplib
import builtins
string_types = (str,)
unicode_type = str
builtins_dict = builtins.__dict__
def gettext_setup(t):
singular = t.gettext
plural = t.ngettext
return singular, plural
def setlocale(category, loc=None):
locale.setlocale(category, loc)
def raise_with_traceback(exc, tb):
"""
This is a helper function to raise exceptions with a traceback.
This is function is required to workaround the syntax changes between Python 2 and 3
Python 3.4 introduced a with_traceback method to Exception classes and Python 3 removed the syntax
which used to be used in Python 2.
:param exc: Exception to raise
:param tb: Traceback to use
:return: Nothing
"""
raise exc.with_traceback(tb)
def load_module(importer, name):
"""
Loads a module using the given importer and module name
:param importer: A finder implementation (returned by e.g. pkgutils.iter_modules)
:param name: Module name
:return: The loaded module
"""
if sys.version_info < (3, 4):
return importer.find_module(name).load_module(name)
spec = importer.find_spec(name)
module = importlib.util.module_from_spec(spec)
sys.modules[name] = module
spec.loader.exec_module(module)
return module