def restore_sys_warnoptions(self, saved_options):
sys.warnoptions = saved_options[1]
sys.warnoptions[:] = saved_options[2]
# Controlling dangling references to Thread objects can make it easier
# to track reference leaks.
python类warnoptions()的实例源码
def build_subprocess_arglist(self):
assert (self.port!=0), (
"Socket should have been assigned a port number.")
w = ['-W' + s for s in sys.warnoptions]
# Maybe IDLE is installed and is being accessed via sys.path,
# or maybe it's not installed and the idle.py script is being
# run from the IDLE source directory.
del_exitf = idleConf.GetOption('main', 'General', 'delete-exitfunc',
default=False, type='bool')
if __name__ == 'idlelib.PyShell':
command = "__import__('idlelib.run').run.main(%r)" % (del_exitf,)
else:
command = "__import__('run').main(%r)" % (del_exitf,)
return [sys.executable] + w + ["-c", command, str(self.port)]
def test_option_w_unset(pyi_builder):
"Test to ensure that option W is not set by default."
pyi_builder.test_source(
"""
import sys
assert 'ignore' not in sys.warnoptions
""")
def _args_from_interpreter_flags():
"""Return a list of command-line arguments reproducing the current
settings in sys.flags and sys.warnoptions."""
flag_opt_map = {
'debug': 'd',
# 'inspect': 'i',
# 'interactive': 'i',
'optimize': 'O',
'dont_write_bytecode': 'B',
'no_user_site': 's',
'no_site': 'S',
'ignore_environment': 'E',
'verbose': 'v',
'bytes_warning': 'b',
'py3k_warning': '3',
}
args = []
for flag, opt in flag_opt_map.items():
v = getattr(sys.flags, flag)
if v > 0:
args.append('-' + opt * v)
if getattr(sys.flags, 'hash_randomization') != 0:
args.append('-R')
for opt in sys.warnoptions:
args.append('-W' + opt)
return args
def test_single_warning(self):
newenv = os.environ.copy()
newenv["PYTHONWARNINGS"] = "ignore::DeprecationWarning"
p = subprocess.Popen([sys.executable,
"-c", "import sys; sys.stdout.write(str(sys.warnoptions))"],
stdout=subprocess.PIPE, env=newenv)
self.assertEqual(p.communicate()[0], "['ignore::DeprecationWarning']")
self.assertEqual(p.wait(), 0)
def test_comma_separated_warnings(self):
newenv = os.environ.copy()
newenv["PYTHONWARNINGS"] = ("ignore::DeprecationWarning,"
"ignore::UnicodeWarning")
p = subprocess.Popen([sys.executable,
"-c", "import sys; sys.stdout.write(str(sys.warnoptions))"],
stdout=subprocess.PIPE, env=newenv)
self.assertEqual(p.communicate()[0],
"['ignore::DeprecationWarning', 'ignore::UnicodeWarning']")
self.assertEqual(p.wait(), 0)
def test_envvar_and_command_line(self):
newenv = os.environ.copy()
newenv["PYTHONWARNINGS"] = "ignore::DeprecationWarning"
p = subprocess.Popen([sys.executable, "-W" "ignore::UnicodeWarning",
"-c", "import sys; sys.stdout.write(str(sys.warnoptions))"],
stdout=subprocess.PIPE, env=newenv)
self.assertEqual(p.communicate()[0],
"['ignore::UnicodeWarning', 'ignore::DeprecationWarning']")
self.assertEqual(p.wait(), 0)
def _args_from_interpreter_flags():
"""Return a list of command-line arguments reproducing the current
settings in sys.flags and sys.warnoptions."""
flag_opt_map = {
'debug': 'd',
# 'inspect': 'i',
# 'interactive': 'i',
'optimize': 'O',
'dont_write_bytecode': 'B',
'no_user_site': 's',
'no_site': 'S',
'ignore_environment': 'E',
'verbose': 'v',
'bytes_warning': 'b',
'py3k_warning': '3',
}
args = []
for flag, opt in flag_opt_map.items():
v = getattr(sys.flags, flag)
if v > 0:
args.append('-' + opt * v)
if getattr(sys.flags, 'hash_randomization') != 0:
args.append('-R')
for opt in sys.warnoptions:
args.append('-W' + opt)
return args
def test_single_warning(self):
newenv = os.environ.copy()
newenv["PYTHONWARNINGS"] = "ignore::DeprecationWarning"
p = subprocess.Popen([sys.executable,
"-c", "import sys; sys.stdout.write(str(sys.warnoptions))"],
stdout=subprocess.PIPE, env=newenv)
self.assertEqual(p.communicate()[0], "['ignore::DeprecationWarning']")
self.assertEqual(p.wait(), 0)
def test_comma_separated_warnings(self):
newenv = os.environ.copy()
newenv["PYTHONWARNINGS"] = ("ignore::DeprecationWarning,"
"ignore::UnicodeWarning")
p = subprocess.Popen([sys.executable,
"-c", "import sys; sys.stdout.write(str(sys.warnoptions))"],
stdout=subprocess.PIPE, env=newenv)
self.assertEqual(p.communicate()[0],
"['ignore::DeprecationWarning', 'ignore::UnicodeWarning']")
self.assertEqual(p.wait(), 0)
def test_envvar_and_command_line(self):
newenv = os.environ.copy()
newenv["PYTHONWARNINGS"] = "ignore::DeprecationWarning"
p = subprocess.Popen([sys.executable, "-W" "ignore::UnicodeWarning",
"-c", "import sys; sys.stdout.write(str(sys.warnoptions))"],
stdout=subprocess.PIPE, env=newenv)
self.assertEqual(p.communicate()[0],
"['ignore::UnicodeWarning', 'ignore::DeprecationWarning']")
self.assertEqual(p.wait(), 0)
def __init__(self, module='__main__', defaultTest=None, argv=None,
testRunner=None, testLoader=loader.defaultTestLoader,
exit=True, verbosity=1, failfast=None, catchbreak=None,
buffer=None, warnings=None):
if isinstance(module, str):
self.module = __import__(module)
for part in module.split('.')[1:]:
self.module = getattr(self.module, part)
else:
self.module = module
if argv is None:
argv = sys.argv
self.exit = exit
self.failfast = failfast
self.catchbreak = catchbreak
self.verbosity = verbosity
self.buffer = buffer
if warnings is None and not sys.warnoptions:
# even if DreprecationWarnings are ignored by default
# print them anyway unless other warnings settings are
# specified by the warnings arg or the -W python flag
self.warnings = 'default'
else:
# here self.warnings is set either to the value passed
# to the warnings args or to None.
# If the user didn't pass a value self.warnings will
# be None. This means that the behavior is unchanged
# and depends on the values passed to -W.
self.warnings = warnings
self.defaultTest = defaultTest
self.testRunner = testRunner
self.testLoader = testLoader
self.progName = os.path.basename(argv[0])
self.parseArgs(argv)
self.runTests()
def test_single_warning(self):
newenv = os.environ.copy()
newenv["PYTHONWARNINGS"] = "ignore::DeprecationWarning"
p = subprocess.Popen([sys.executable,
"-c", "import sys; sys.stdout.write(str(sys.warnoptions))"],
stdout=subprocess.PIPE, env=newenv)
self.assertEqual(p.communicate()[0], b"['ignore::DeprecationWarning']")
self.assertEqual(p.wait(), 0)
def test_comma_separated_warnings(self):
newenv = os.environ.copy()
newenv["PYTHONWARNINGS"] = ("ignore::DeprecationWarning,"
"ignore::UnicodeWarning")
p = subprocess.Popen([sys.executable,
"-c", "import sys; sys.stdout.write(str(sys.warnoptions))"],
stdout=subprocess.PIPE, env=newenv)
self.assertEqual(p.communicate()[0],
b"['ignore::DeprecationWarning', 'ignore::UnicodeWarning']")
self.assertEqual(p.wait(), 0)
def test_nonascii(self):
newenv = os.environ.copy()
newenv["PYTHONWARNINGS"] = "ignore:DeprecaciónWarning"
newenv["PYTHONIOENCODING"] = "utf-8"
p = subprocess.Popen([sys.executable,
"-c", "import sys; sys.stdout.write(str(sys.warnoptions))"],
stdout=subprocess.PIPE, env=newenv)
self.assertEqual(p.communicate()[0],
"['ignore:DeprecaciónWarning']".encode('utf-8'))
self.assertEqual(p.wait(), 0)
def get_sys_warnoptions(self):
return id(sys.warnoptions), sys.warnoptions, sys.warnoptions[:]
def restore_sys_warnoptions(self, saved_options):
sys.warnoptions = saved_options[1]
sys.warnoptions[:] = saved_options[2]
# Controlling dangling references to Thread objects can make it easier
# to track reference leaks.
def restart_with_reloader():
while True:
args = [sys.executable] + ['-W%s' % o for o in sys.warnoptions] + sys.argv
if sys.platform == "win32":
args = ['"%s"' % arg for arg in args]
new_environ = os.environ.copy()
new_environ["RUN_MAIN"] = 'true'
exit_code = os.spawnve(os.P_WAIT, sys.executable, args, new_environ)
if exit_code != 3:
return exit_code
def _args_from_interpreter_flags():
"""Tries to reconstruct original interpreter args from sys.flags for Python 2.6
Backported from Python 3.5. Aims to return a list of
command-line arguments reproducing the current
settings in sys.flags and sys.warnoptions.
"""
flag_opt_map = {
'debug': 'd',
# 'inspect': 'i',
# 'interactive': 'i',
'optimize': 'O',
'dont_write_bytecode': 'B',
'no_user_site': 's',
'no_site': 'S',
'ignore_environment': 'E',
'verbose': 'v',
'bytes_warning': 'b',
'quiet': 'q',
'hash_randomization': 'R',
'py3k_warning': '3',
}
args = []
for flag, opt in flag_opt_map.items():
v = getattr(sys.flags, flag)
if v > 0:
if flag == 'hash_randomization':
v = 1 # Handle specification of an exact seed
args.append('-' + opt * v)
for opt in sys.warnoptions:
args.append('-W' + opt)
return args
# html module come in 3.2 version
def test_single_warning(self):
newenv = os.environ.copy()
newenv["PYTHONWARNINGS"] = "ignore::DeprecationWarning"
p = subprocess.Popen([sys.executable,
"-c", "import sys; sys.stdout.write(str(sys.warnoptions))"],
stdout=subprocess.PIPE, env=newenv)
self.assertEqual(p.communicate()[0], "['ignore::DeprecationWarning']")
self.assertEqual(p.wait(), 0)
