def egg_link_path(dist):
"""
Return the path for the .egg-link file if it exists, otherwise, None.
There's 3 scenarios:
1) not in a virtualenv
try to find in site.USER_SITE, then site_packages
2) in a no-global virtualenv
try to find in site_packages
3) in a yes-global virtualenv
try to find in site_packages, then site.USER_SITE
(don't look in global location)
For #1 and #3, there could be odd cases, where there's an egg-link in 2
locations.
This method will just return the first one found.
"""
sites = []
if running_under_virtualenv():
if virtualenv_no_global():
sites.append(site_packages)
else:
sites.append(site_packages)
if user_site:
sites.append(user_site)
else:
if user_site:
sites.append(user_site)
sites.append(site_packages)
for site in sites:
egglink = os.path.join(site, dist.project_name) + '.egg-link'
if os.path.isfile(egglink):
return egglink
def get_install_args(self, global_options, record_filename, root, prefix):
install_args = [os.environ['PIP_PYTHON_PATH'], "-u"]
install_args.append('-c')
install_args.append(SETUPTOOLS_SHIM % self.setup_py)
install_args += list(global_options) + \
['install', '--record', record_filename]
if not self.as_egg:
install_args += ['--single-version-externally-managed']
if root is not None:
install_args += ['--root', root]
if prefix is not None:
install_args += ['--prefix', prefix]
if self.pycompile:
install_args += ["--compile"]
else:
install_args += ["--no-compile"]
if running_under_virtualenv():
py_ver_str = 'python' + sysconfig.get_python_version()
install_args += [
'--install-headers',
os.path.join(sys.prefix, 'include', 'site', py_ver_str,
self.name)
]
return install_args
def is_local(path):
"""
Return True if path is within sys.prefix, if we're running in a virtualenv.
If we're not in a virtualenv, all paths are considered "local."
"""
if not running_under_virtualenv():
return True
return normalize_path(path).startswith(normalize_path(sys.prefix))
def get_config_files(self):
# the files returned by this method will be parsed in order with the
# first files listed being overridden by later files in standard
# ConfigParser fashion
config_file = os.environ.get('PIP_CONFIG_FILE', False)
if config_file == os.devnull:
return []
# at the base we have any site-wide configuration
files = list(site_config_files)
# per-user configuration next
if not self.isolated:
if config_file and os.path.exists(config_file):
files.append(config_file)
else:
# This is the legacy config file, we consider it to be a lower
# priority than the new file location.
files.append(legacy_config_file)
# This is the new config file, we consider it to be a higher
# priority than the legacy file.
files.append(
os.path.join(
appdirs.user_config_dir("pip"),
config_basename,
))
# finally virtualenv configuration first trumping others
if running_under_virtualenv():
venv_config_file = os.path.join(
sys.prefix,
config_basename,
)
if os.path.exists(venv_config_file):
files.append(venv_config_file)
return files
def check_if_exists(self):
"""Find an installed distribution that satisfies or conflicts
with this requirement, and set self.satisfied_by or
self.conflicts_with appropriately.
"""
if self.req is None:
return False
try:
# get_distribution() will resolve the entire list of requirements
# anyway, and we've already determined that we need the requirement
# in question, so strip the marker so that we don't try to
# evaluate it.
no_marker = Requirement(str(self.req))
no_marker.marker = None
self.satisfied_by = pkg_resources.get_distribution(str(no_marker))
if self.editable and self.satisfied_by:
self.conflicts_with = self.satisfied_by
# when installing editables, nothing pre-existing should ever
# satisfy
self.satisfied_by = None
return True
except pkg_resources.DistributionNotFound:
return False
except pkg_resources.VersionConflict:
existing_dist = pkg_resources.get_distribution(self.req.name)
if self.use_user_site:
if dist_in_usersite(existing_dist):
self.conflicts_with = existing_dist
elif (running_under_virtualenv()
and dist_in_site_packages(existing_dist)):
raise InstallationError(
"Will not install to the user site because it will "
"lack sys.path precedence to %s in %s" %
(existing_dist.project_name, existing_dist.location))
else:
self.conflicts_with = existing_dist
return True
def main(self, args):
options, args = self.parse_args(args)
if options.quiet:
if options.quiet == 1:
level = "WARNING"
if options.quiet == 2:
level = "ERROR"
else:
level = "CRITICAL"
elif options.verbose:
level = "DEBUG"
else:
level = "INFO"
# The root logger should match the "console" level *unless* we
# specified "--log" to send debug logs to a file.
root_level = level
if options.log:
root_level = "DEBUG"
logging_dictConfig({
"version":
1,
"disable_existing_loggers":
False,
"filters": {
"exclude_warnings": {
"()": "pip.utils.logging.MaxLevelFilter",
"level": logging.WARNING,
},
},
"formatters": {
"indent": {
"()": IndentingFormatter,
"format": "%(message)s",
},
},
"handlers": {
"console": {
"level": level,
"class": "pip.utils.logging.ColorizedStreamHandler",
"stream": self.log_streams[0],
"filters": ["exclude_warnings"],
"formatter": "indent",
},
"console_errors": {
"level": "WARNING",
"class": "pip.utils.logging.ColorizedStreamHandler",
"stream": self.log_streams[1],
"formatter": "indent",
},
"user_log": {
"level": "DEBUG",
"class": "pip.utils.logging.BetterRotatingFileHandler",
"filename": options.log or "/dev/null",
"delay": True,
"formatter": "indent",
},
},
"root": {
"level":
root_level,
"handlers":
list(
filter(None, [
"console",
"console_errors",
"user_log" if options.log else None,
])),
},
# Disable any logging besides WARNING unless we have DEBUG level
# logging enabled. These use both pip9._vendor and the bare names
# for the case where someone unbundles our libraries.
"loggers":
dict((
name,
{
"level": (
"WARNING" if level in ["INFO", "ERROR"] else "DEBUG"),
},
) for name in ["pip._vendor", "distlib", "requests", "urllib3"]),
})
if sys.version_info[:2] == (2, 6):
warnings.warn(
"Python 2.6 is no longer supported by the Python core team, "
"please upgrade your Python. A future version of pip will "
"drop support for Python 2.6",
deprecation.Python26DeprecationWarning)
# TODO: try to get these passing down from the command?
# without resorting to os.environ to hold these.
if options.no_input:
os.environ['PIP_NO_INPUT'] = '1'
if options.exists_action:
os.environ['PIP_EXISTS_ACTION'] = ' '.join(options.exists_action)
if options.require_venv:
# If a venv is required check if it can really be found
if not running_under_virtualenv():
logger.critical(
'Could not find an activated virtualenv (required).')
sys.exit(VIRTUALENV_NOT_FOUND)
try:
status = self.run(options, args)
# FIXME: all commands should return an exit status
# and when it is done, isinstance is not needed anymore
if isinstance(status, int):
return status
except PreviousBuildDirError as exc:
logger.critical(str(exc))
logger.debug('Exception information:', exc_info=True)
return PREVIOUS_BUILD_DIR_ERROR
except (InstallationError, UninstallationError, BadCommand) as exc:
logger.critical(str(exc))
logger.debug('Exception information:', exc_info=True)
return ERROR
except CommandError as exc:
logger.critical('ERROR: %s', exc)
logger.debug('Exception information:', exc_info=True)
return ERROR
except KeyboardInterrupt:
logger.critical('Operation cancelled by user')
logger.debug('Exception information:', exc_info=True)
return ERROR
except:
logger.critical('Exception:', exc_info=True)
return UNKNOWN_ERROR
finally:
# Check if we're using the latest version of pip available
if (not options.disable_pip_version_check
and not getattr(options, "no_index", False)):
with self._build_session(options,
retries=0,
timeout=min(
5, options.timeout)) as session:
pip_version_check(session)
return SUCCESS
def load_selfcheck_statefile():
if running_under_virtualenv():
return VirtualenvSelfCheckState()
else:
return GlobalSelfCheckState()