def get_index_dist(self):
if not self.download:
log.warn('Downloading {0!r} disabled.'.format(DIST_NAME))
return None
log.warn(
"Downloading {0!r}; run setup.py with the --offline option to "
"force offline installation.".format(DIST_NAME))
try:
dist = self._do_download()
except Exception as e:
if DEBUG:
raise
log.warn(
'Failed to download and/or install {0!r} from {1!r}:\n'
'{2}'.format(DIST_NAME, self.index_url, str(e)))
dist = None
# No need to run auto-upgrade here since we've already presumably
# gotten the most up-to-date version from the package index
return dist
python类DEBUG的实例源码
def debug_print(self, msg):
"""Print 'msg' to stdout if the global DEBUG (taken from the
DISTUTILS_DEBUG environment variable) flag is true.
"""
from distutils.debug import DEBUG
if DEBUG:
print msg
sys.stdout.flush()
# -- Option validation methods -------------------------------------
# (these are very handy in writing the 'finalize_options()' method)
#
# NB. the general philosophy here is to ensure that a particular option
# value meets certain type and value constraints. If not, we try to
# force it into conformance (eg. if we expect a list but have a string,
# split the string on comma and/or whitespace). If we can't force the
# option into conformance, raise DistutilsOptionError. Thus, command
# classes need do nothing more than (eg.)
# self.ensure_string_list('foo')
# and they can be guaranteed that thereafter, self.foo will be
# a list of strings.
def _spawn_nt(cmd, search_path=1, verbose=0, dry_run=0):
executable = cmd[0]
cmd = _nt_quote_args(cmd)
if search_path:
# either we find one or it stays the same
executable = find_executable(executable) or executable
log.info(' '.join([executable] + cmd[1:]))
if not dry_run:
# spawn for NT requires a full path to the .exe
try:
rc = os.spawnv(os.P_WAIT, executable, cmd)
except OSError, exc:
# this seems to happen when the command isn't found
if not DEBUG:
cmd = executable
raise DistutilsExecError, \
"command %r failed: %s" % (cmd, exc[-1])
if rc != 0:
# and this reflects the command running but failing
if not DEBUG:
cmd = executable
raise DistutilsExecError, \
"command %r failed with exit status %d" % (cmd, rc)
def _spawn_os2(cmd, search_path=1, verbose=0, dry_run=0):
executable = cmd[0]
if search_path:
# either we find one or it stays the same
executable = find_executable(executable) or executable
log.info(' '.join([executable] + cmd[1:]))
if not dry_run:
# spawnv for OS/2 EMX requires a full path to the .exe
try:
rc = os.spawnv(os.P_WAIT, executable, cmd)
except OSError, exc:
# this seems to happen when the command isn't found
if not DEBUG:
cmd = executable
raise DistutilsExecError, \
"command %r failed: %s" % (cmd, exc[-1])
if rc != 0:
# and this reflects the command running but failing
if not DEBUG:
cmd = executable
log.debug("command %r failed with exit status %d" % (cmd, rc))
raise DistutilsExecError, \
"command %r failed with exit status %d" % (cmd, rc)
def get_index_dist(self):
if not self.download:
log.warn('Downloading {0!r} disabled.'.format(DIST_NAME))
return None
log.warn(
"Downloading {0!r}; run setup.py with the --offline option to "
"force offline installation.".format(DIST_NAME))
try:
dist = self._do_download()
except Exception as e:
if DEBUG:
raise
log.warn(
'Failed to download and/or install {0!r} from {1!r}:\n'
'{2}'.format(DIST_NAME, self.index_url, str(e)))
dist = None
# No need to run auto-upgrade here since we've already presumably
# gotten the most up-to-date version from the package index
return dist
def get_index_dist(self):
if not self.download:
log.warn('Downloading {0!r} disabled.'.format(DIST_NAME))
return False
log.warn(
"Downloading {0!r}; run setup.py with the --offline option to "
"force offline installation.".format(DIST_NAME))
try:
dist = self._do_download()
except Exception as e:
if DEBUG:
raise
log.warn(
'Failed to download and/or install {0!r} from {1!r}:\n'
'{2}'.format(DIST_NAME, self.index_url, str(e)))
dist = None
# No need to run auto-upgrade here since we've already presumably
# gotten the most up-to-date version from the package index
return dist
def get_index_dist(self):
if not self.download:
log.warn('Downloading {0!r} disabled.'.format(DIST_NAME))
return None
log.warn(
"Downloading {0!r}; run setup.py with the --offline option to "
"force offline installation.".format(DIST_NAME))
try:
dist = self._do_download()
except Exception as e:
if DEBUG:
raise
log.warn(
'Failed to download and/or install {0!r} from {1!r}:\n'
'{2}'.format(DIST_NAME, self.index_url, str(e)))
dist = None
# No need to run auto-upgrade here since we've already presumably
# gotten the most up-to-date version from the package index
return dist
def debug_print(self, msg):
"""Print 'msg' to stdout if the global DEBUG (taken from the
DISTUTILS_DEBUG environment variable) flag is true.
"""
from distutils.debug import DEBUG
if DEBUG:
print(msg)
sys.stdout.flush()
# -- Option validation methods -------------------------------------
# (these are very handy in writing the 'finalize_options()' method)
#
# NB. the general philosophy here is to ensure that a particular option
# value meets certain type and value constraints. If not, we try to
# force it into conformance (eg. if we expect a list but have a string,
# split the string on comma and/or whitespace). If we can't force the
# option into conformance, raise DistutilsOptionError. Thus, command
# classes need do nothing more than (eg.)
# self.ensure_string_list('foo')
# and they can be guaranteed that thereafter, self.foo will be
# a list of strings.
def _spawn_nt(cmd, search_path=1, verbose=0, dry_run=0):
executable = cmd[0]
cmd = _nt_quote_args(cmd)
if search_path:
# either we find one or it stays the same
executable = find_executable(executable) or executable
log.info(' '.join([executable] + cmd[1:]))
if not dry_run:
# spawn for NT requires a full path to the .exe
try:
rc = os.spawnv(os.P_WAIT, executable, cmd)
except OSError as exc:
# this seems to happen when the command isn't found
if not DEBUG:
cmd = executable
raise DistutilsExecError(
"command %r failed: %s" % (cmd, exc.args[-1]))
if rc != 0:
# and this reflects the command running but failing
if not DEBUG:
cmd = executable
raise DistutilsExecError(
"command %r failed with exit status %d" % (cmd, rc))
def get_index_dist(self):
if not self.download:
log.warn('Downloading {0!r} disabled.'.format(DIST_NAME))
return None
log.warn(
"Downloading {0!r}; run setup.py with the --offline option to "
"force offline installation.".format(DIST_NAME))
try:
dist = self._do_download()
except Exception as e:
if DEBUG:
raise
log.warn(
'Failed to download and/or install {0!r} from {1!r}:\n'
'{2}'.format(DIST_NAME, self.index_url, str(e)))
dist = None
# No need to run auto-upgrade here since we've already presumably
# gotten the most up-to-date version from the package index
return dist
def get_index_dist(self):
if not self.download:
log.warn('Downloading {0!r} disabled.'.format(DIST_NAME))
return None
log.warn(
"Downloading {0!r}; run setup.py with the --offline option to "
"force offline installation.".format(DIST_NAME))
try:
dist = self._do_download()
except Exception as e:
if DEBUG:
raise
log.warn(
'Failed to download and/or install {0!r} from {1!r}:\n'
'{2}'.format(DIST_NAME, self.index_url, str(e)))
dist = None
# No need to run auto-upgrade here since we've already presumably
# gotten the most up-to-date version from the package index
return dist
def debug_print(self, msg):
from distutils.debug import DEBUG
if DEBUG:
print msg
def get_command_obj(self, command, create=1):
"""Return the command object for 'command'. Normally this object
is cached on a previous call to 'get_command_obj()'; if no command
object for 'command' is in the cache, then we either create and
return it (if 'create' is true) or return None.
"""
cmd_obj = self.command_obj.get(command)
if not cmd_obj and create:
if DEBUG:
self.announce("Distribution.get_command_obj(): " \
"creating '%s' command object" % command)
klass = self.get_command_class(command)
cmd_obj = self.command_obj[command] = klass(self)
self.have_run[command] = 0
# Set any options that were supplied in config files
# or on the command line. (NB. support for error
# reporting is lame here: any errors aren't reported
# until 'finalize_options()' is called, which means
# we won't report the source of the error.)
options = self.command_options.get(command)
if options:
self._set_command_options(cmd_obj, options)
return cmd_obj
def debug_print(self, msg):
"""Print 'msg' to stdout if the global DEBUG (taken from the
DISTUTILS_DEBUG environment variable) flag is true.
"""
from distutils.debug import DEBUG
if DEBUG:
print msg
# -- List-like methods ---------------------------------------------
def debug_print(self, msg):
from distutils.debug import DEBUG
if DEBUG:
print msg
def get_command_obj(self, command, create=1):
"""Return the command object for 'command'. Normally this object
is cached on a previous call to 'get_command_obj()'; if no command
object for 'command' is in the cache, then we either create and
return it (if 'create' is true) or return None.
"""
cmd_obj = self.command_obj.get(command)
if not cmd_obj and create:
if DEBUG:
self.announce("Distribution.get_command_obj(): " \
"creating '%s' command object" % command)
klass = self.get_command_class(command)
cmd_obj = self.command_obj[command] = klass(self)
self.have_run[command] = 0
# Set any options that were supplied in config files
# or on the command line. (NB. support for error
# reporting is lame here: any errors aren't reported
# until 'finalize_options()' is called, which means
# we won't report the source of the error.)
options = self.command_options.get(command)
if options:
self._set_command_options(cmd_obj, options)
return cmd_obj
def test_debug_print(self):
cmd = self.cmd
with captured_stdout() as stdout:
cmd.debug_print('xxx')
stdout.seek(0)
self.assertEqual(stdout.read(), '')
debug.DEBUG = True
try:
with captured_stdout() as stdout:
cmd.debug_print('xxx')
stdout.seek(0)
self.assertEqual(stdout.read(), 'xxx\n')
finally:
debug.DEBUG = False
def debug_print(self, msg):
"""Print 'msg' to stdout if the global DEBUG (taken from the
DISTUTILS_DEBUG environment variable) flag is true.
"""
from distutils.debug import DEBUG
if DEBUG:
print msg
# -- List-like methods ---------------------------------------------
def parse_config(cls):
if not os.path.exists('setup.cfg'):
return {}
cfg = ConfigParser()
try:
cfg.read('setup.cfg')
except Exception as e:
if DEBUG:
raise
log.error(
"Error reading setup.cfg: {0!r}\n{1} will not be "
"automatically bootstrapped and package installation may fail."
"\n{2}".format(e, PACKAGE_NAME, _err_help_msg))
return {}
if not cfg.has_section('ah_bootstrap'):
return {}
config = {}
for option, type_ in CFG_OPTIONS:
if not cfg.has_option('ah_bootstrap', option):
continue
if type_ is bool:
value = cfg.getboolean('ah_bootstrap', option)
else:
value = cfg.get('ah_bootstrap', option)
config[option] = value
return config
def get_local_file_dist(self):
"""
Handle importing from a source archive; this also uses setup_requires
but points easy_install directly to the source archive.
"""
if not os.path.isfile(self.path):
return
log.info('Attempting to unpack and import astropy_helpers from '
'{0!r}'.format(self.path))
try:
dist = self._do_download(find_links=[self.path])
except Exception as e:
if DEBUG:
raise
log.warn(
'Failed to import {0} from the specified archive {1!r}: '
'{2}'.format(PACKAGE_NAME, self.path, str(e)))
dist = None
if dist is not None and self.auto_upgrade:
# A version of astropy-helpers was found on the available path, but
# check to see if a bugfix release is available on PyPI
upgrade = self._do_upgrade(dist)
if upgrade is not None:
dist = upgrade
return dist
