text_prompt stringlengths 157 13.1k | code_prompt stringlengths 7 19.8k ⌀ |
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def evaluate(self, environment=None):
"""Evaluate a marker. Return the boolean from evaluating the given marker against the environment. environment is an option... |
current_environment = default_environment()
if environment is not None:
current_environment.update(environment)
return _evaluate_markers(self._markers, current_environment) |
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def _allow_all_wheels():
"""Monkey patch pip.Wheel to allow all wheels The usual checks against platforms and Python versions are ignored to allow fetching all a... |
original_wheel_supported = Wheel.supported
original_support_index_min = Wheel.support_index_min
Wheel.supported = _wheel_supported
Wheel.support_index_min = _wheel_support_index_min
yield
Wheel.supported = original_wheel_supported
Wheel.support_index_min = original_support_index_min |
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def create(self):
"""Create a temporary directory and store its path in self.path """ |
if self.path is not None:
logger.debug(
"Skipped creation of temporary directory: {}".format(self.path)
)
return
# We realpath here because some systems have their default tmpdir
# symlinked to another directory. This tends to confuse build
... |
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def cleanup(self):
"""Remove the temporary directory created and reset state """ |
if getattr(self._finalizer, "detach", None) and self._finalizer.detach():
if os.path.exists(self.path):
try:
rmtree(self.path)
except OSError:
pass
else:
self.path = None |
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def _generate_names(cls, name):
"""Generates a series of temporary names. The algorithm replaces the leading characters in the name with ones that are valid file... |
for i in range(1, len(name)):
for candidate in itertools.combinations_with_replacement(
cls.LEADING_CHARS, i - 1):
new_name = '~' + ''.join(candidate) + name[i:]
if new_name != name:
yield new_name
# If we make it this... |
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def detect(byte_str):
""" Detect the encoding of the given byte string. :param byte_str: The byte sequence to examine. :type byte_str: ``bytes`` or ``bytearray``... |
if not isinstance(byte_str, bytearray):
if not isinstance(byte_str, bytes):
raise TypeError('Expected object of type bytes or bytearray, got: '
'{0}'.format(type(byte_str)))
else:
byte_str = bytearray(byte_str)
detector = UniversalDetector()
... |
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def unescape(self):
"""Convert escaped markup back into a text string. This replaces HTML entities with the characters they represent. 'Main » <em>About</em>' ""... |
from ._constants import HTML_ENTITIES
def handle_match(m):
name = m.group(1)
if name in HTML_ENTITIES:
return unichr(HTML_ENTITIES[name])
try:
if name[:2] in ("#x", "#X"):
return unichr(int(name[2:], 16))
... |
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def populate_link(self, finder, upgrade, require_hashes):
# type: (PackageFinder, bool, bool) -> None """Ensure that if a link can be found for this, that it is ... |
if self.link is None:
self.link = finder.find_requirement(self, upgrade)
if self._wheel_cache is not None and not require_hashes:
old_link = self.link
self.link = self._wheel_cache.get(self.link, self.name)
if old_link != self.link:
logger... |
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def is_pinned(self):
# type: () -> bool """Return whether I am pinned to an exact version. For example, some-package==1.2 is pinned; some-package>1.2 is not. """ |
specifiers = self.specifier
return (len(specifiers) == 1 and
next(iter(specifiers)).operator in {'==', '==='}) |
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def hashes(self, trust_internet=True):
# type: (bool) -> Hashes """Return a hash-comparer that considers my option- and URL-based hashes to be known-good. Hashes... |
good_hashes = self.options.get('hashes', {}).copy()
link = self.link if trust_internet else self.original_link
if link and link.hash:
good_hashes.setdefault(link.hash_name, []).append(link.hash)
return Hashes(good_hashes) |
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def prepare_metadata(self):
# type: () -> None """Ensure that project metadata is available. Under PEP 517, call the backend hook to prepare the metadata. Under ... |
assert self.source_dir
with indent_log():
if self.use_pep517:
self.prepare_pep517_metadata()
else:
self.run_egg_info()
if not self.req:
if isinstance(parse_version(self.metadata["Version"]), Version):
op = "==... |
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def get_dist(self):
# type: () -> Distribution """Return a pkg_resources.Distribution for this requirement""" |
if self.metadata_directory:
base_dir, distinfo = os.path.split(self.metadata_directory)
metadata = pkg_resources.PathMetadata(
base_dir, self.metadata_directory
)
dist_name = os.path.splitext(distinfo)[0]
typ = pkg_resources.DistInfoDi... |
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def uninstall(self, auto_confirm=False, verbose=False, use_user_site=False):
# type: (bool, bool, bool) -> Optional[UninstallPathSet] """ Uninstall the distribut... |
if not self.check_if_exists(use_user_site):
logger.warning("Skipping %s as it is not installed.", self.name)
return None
dist = self.satisfied_by or self.conflicts_with
uninstalled_pathset = UninstallPathSet.from_dist(dist)
uninstalled_pathset.remove(auto_confir... |
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def populate_requirement_set(requirement_set, # type: RequirementSet args, # type: List[str] options, # type: Values finder, # type: PackageFinder session, # type... |
# NOTE: As a side-effect, options.require_hashes and
# requirement_set.require_hashes may be updated
for filename in options.constraints:
for req_to_add in parse_requirements(
filename,
constraint=True, finder=finder, options=options,
... |
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def _build_package_finder( self, options, # type: Values session, # type: PipSession platform=None, # type: Optional[str] python_versions=None, # type: Optional[L... |
index_urls = [options.index_url] + options.extra_index_urls
if options.no_index:
logger.debug(
'Ignoring indexes: %s',
','.join(redact_password_from_url(url) for url in index_urls),
)
index_urls = []
return PackageFinder(
... |
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def intranges_contain(int_, ranges):
"""Determine if `int_` falls into one of the ranges in `ranges`.""" |
tuple_ = _encode_range(int_, 0)
pos = bisect.bisect_left(ranges, tuple_)
# we could be immediately ahead of a tuple (start, end)
# with start < int_ <= end
if pos > 0:
left, right = _decode_range(ranges[pos-1])
if left <= int_ < right:
return True
# or we could be im... |
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def _hash_of_file(path, algorithm):
"""Return the hash digest of a file.""" |
with open(path, 'rb') as archive:
hash = hashlib.new(algorithm)
for chunk in read_chunks(archive):
hash.update(chunk)
return hash.hexdigest() |
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def id(self):
"""Return the distro ID of the OS distribution, as a string. For details, see :func:`distro.id`. """ |
def normalize(distro_id, table):
distro_id = distro_id.lower().replace(' ', '_')
return table.get(distro_id, distro_id)
distro_id = self.os_release_attr('id')
if distro_id:
return normalize(distro_id, NORMALIZED_OS_ID)
distro_id = self.lsb_release_a... |
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def name(self, pretty=False):
""" Return the name of the OS distribution, as a string. For details, see :func:`distro.name`. """ |
name = self.os_release_attr('name') \
or self.lsb_release_attr('distributor_id') \
or self.distro_release_attr('name') \
or self.uname_attr('name')
if pretty:
name = self.os_release_attr('pretty_name') \
or self.lsb_release_attr('descripti... |
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def version(self, pretty=False, best=False):
""" Return the version of the OS distribution, as a string. For details, see :func:`distro.version`. """ |
versions = [
self.os_release_attr('version_id'),
self.lsb_release_attr('release'),
self.distro_release_attr('version_id'),
self._parse_distro_release_content(
self.os_release_attr('pretty_name')).get('version_id', ''),
self._parse_dist... |
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def version_parts(self, best=False):
""" Return the version of the OS distribution, as a tuple of version numbers. For details, see :func:`distro.version_parts`.... |
version_str = self.version(best=best)
if version_str:
version_regex = re.compile(r'(\d+)\.?(\d+)?\.?(\d+)?')
matches = version_regex.match(version_str)
if matches:
major, minor, build_number = matches.groups()
return major, minor or ''... |
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def info(self, pretty=False, best=False):
""" Return certain machine-readable information about the OS distribution. For details, see :func:`distro.info`. """ |
return dict(
id=self.id(),
version=self.version(pretty, best),
version_parts=dict(
major=self.major_version(best),
minor=self.minor_version(best),
build_number=self.build_number(best)
),
like=self.like()... |
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def _os_release_info(self):
""" Get the information items from the specified os-release file. Returns: A dictionary containing all information items. """ |
if os.path.isfile(self.os_release_file):
with open(self.os_release_file) as release_file:
return self._parse_os_release_content(release_file)
return {} |
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def _lsb_release_info(self):
""" Get the information items from the lsb_release command output. Returns: A dictionary containing all information items. """ |
if not self.include_lsb:
return {}
with open(os.devnull, 'w') as devnull:
try:
cmd = ('lsb_release', '-a')
stdout = subprocess.check_output(cmd, stderr=devnull)
except OSError: # Command not found
return {}
con... |
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def _parse_lsb_release_content(lines):
""" Parse the output of the lsb_release command. Parameters: * lines: Iterable through the lines of the lsb_release output... |
props = {}
for line in lines:
kv = line.strip('\n').split(':', 1)
if len(kv) != 2:
# Ignore lines without colon.
continue
k, v = kv
props.update({k.replace(' ', '_').lower(): v.strip()})
return props |
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def _distro_release_info(self):
""" Get the information items from the specified distro release file. Returns: A dictionary containing all information items. """ |
if self.distro_release_file:
# If it was specified, we use it and parse what we can, even if
# its file name or content does not match the expected pattern.
distro_info = self._parse_distro_release_file(
self.distro_release_file)
basename = os.pat... |
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def _parse_distro_release_file(self, filepath):
""" Parse a distro release file. Parameters: * filepath: Path name of the distro release file. Returns: A diction... |
try:
with open(filepath) as fp:
# Only parse the first line. For instance, on SLES there
# are multiple lines. We don't want them...
return self._parse_distro_release_content(fp.readline())
except (OSError, IOError):
# Ignore not b... |
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def _parse_distro_release_content(line):
""" Parse a line from a distro release file. Parameters: * line: Line from the distro release file. Must be a unicode st... |
if isinstance(line, bytes):
line = line.decode('utf-8')
matches = _DISTRO_RELEASE_CONTENT_REVERSED_PATTERN.match(
line.strip()[::-1])
distro_info = {}
if matches:
# regexp ensures non-None
distro_info['name'] = matches.group(3)[::-1]
... |
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def dependency_tree(installed_keys, root_key):
""" Calculate the dependency tree for the package `root_key` and return a collection of all its dependencies. Uses... |
dependencies = set()
queue = collections.deque()
if root_key in installed_keys:
dep = installed_keys[root_key]
queue.append(dep)
while queue:
v = queue.popleft()
key = key_from_req(v)
if key in dependencies:
continue
dependencies.add(key)
... |
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def diff(compiled_requirements, installed_dists):
""" Calculate which packages should be installed or uninstalled, given a set of compiled requirements and a lis... |
requirements_lut = {r.link or key_from_req(r.req): r for r in compiled_requirements}
satisfied = set() # holds keys
to_install = set() # holds InstallRequirement objects
to_uninstall = set() # holds keys
pkgs_to_ignore = get_dists_to_ignore(installed_dists)
for dist in installed_dists:
... |
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def sync(to_install, to_uninstall, verbose=False, dry_run=False, install_flags=None):
""" Install and uninstalls the given sets of modules. """ |
if not to_uninstall and not to_install:
click.echo("Everything up-to-date")
pip_flags = []
if not verbose:
pip_flags += ['-q']
if to_uninstall:
if dry_run:
click.echo("Would uninstall:")
for pkg in to_uninstall:
click.echo(" {}".format(... |
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def _environment_sanity_check(environment):
"""Perform a sanity check on the environment.""" |
assert issubclass(environment.undefined, Undefined), 'undefined must ' \
'be a subclass of undefined because filters depend on it.'
assert environment.block_start_string != \
environment.variable_start_string != \
environment.comment_start_string, 'block, variable and comment ' \
... |
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def overlay(self, block_start_string=missing, block_end_string=missing, variable_start_string=missing, variable_end_string=missing, comment_start_string=missing, ... |
args = dict(locals())
del args['self'], args['cache_size'], args['extensions']
rv = object.__new__(self.__class__)
rv.__dict__.update(self.__dict__)
rv.overlayed = True
rv.linked_to = self
for key, value in iteritems(args):
if value is not missing:
... |
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def iter_extensions(self):
"""Iterates over the extensions by priority.""" |
return iter(sorted(self.extensions.values(),
key=lambda x: x.priority)) |
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def call_filter(self, name, value, args=None, kwargs=None, context=None, eval_ctx=None):
"""Invokes a filter on a value the same way the compiler does it. Note t... |
func = self.filters.get(name)
if func is None:
fail_for_missing_callable('no filter named %r', name)
args = [value] + list(args or ())
if getattr(func, 'contextfilter', False):
if context is None:
raise TemplateRuntimeError('Attempted to invoke co... |
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def parse(self, source, name=None, filename=None):
"""Parse the sourcecode and return the abstract syntax tree. This tree of nodes is used by the compiler to con... |
try:
return self._parse(source, name, filename)
except TemplateSyntaxError:
exc_info = sys.exc_info()
self.handle_exception(exc_info, source_hint=source) |
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def compile_expression(self, source, undefined_to_none=True):
"""A handy helper method that returns a callable that accepts keyword arguments that appear as vari... |
parser = Parser(self, source, state='variable')
exc_info = None
try:
expr = parser.parse_expression()
if not parser.stream.eos:
raise TemplateSyntaxError('chunk after expression',
parser.stream.current.lineno,
... |
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def make_globals(self, d):
"""Return a dict for the globals.""" |
if not d:
return self.globals
return dict(self.globals, **d) |
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def from_module_dict(cls, environment, module_dict, globals):
"""Creates a template object from a module. This is used by the module loader to create a template ... |
return cls._from_namespace(environment, module_dict, globals) |
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def get_corresponding_lineno(self, lineno):
"""Return the source line number of a line number in the generated bytecode as they are not in sync. """ |
for template_line, code_line in reversed(self.debug_info):
if code_line <= lineno:
return template_line
return 1 |
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def _get_parsed_url(url):
# type: (S) -> Url """ This is a stand-in function for `urllib3.util.parse_url` The orignal function doesn't handle special characters ... |
try:
parsed = urllib3_parse(url)
except ValueError:
scheme, _, url = url.partition("://")
auth, _, url = url.rpartition("@")
url = "{scheme}://{url}".format(scheme=scheme, url=url)
parsed = urllib3_parse(url)._replace(auth=auth)
return parsed |
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def remove_password_from_url(url):
# type: (S) -> S """ Given a url, remove the password and insert 4 dashes :param url: The url to replace the authentication in... |
parsed = _get_parsed_url(url)
if parsed.auth:
auth, _, _ = parsed.auth.partition(":")
return parsed._replace(auth="{auth}:----".format(auth=auth)).url
return parsed.url |
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def _verify_python3_env():
"""Ensures that the environment is good for unicode on Python 3.""" |
if PY2:
return
try:
import locale
fs_enc = codecs.lookup(locale.getpreferredencoding()).name
except Exception:
fs_enc = 'ascii'
if fs_enc != 'ascii':
return
extra = ''
if os.name == 'posix':
import subprocess
try:
rv = subproc... |
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def is_installable_dir(path):
# type: (str) -> bool """Is path is a directory containing setup.py or pyproject.toml? """ |
if not os.path.isdir(path):
return False
setup_py = os.path.join(path, 'setup.py')
if os.path.isfile(setup_py):
return True
pyproject_toml = os.path.join(path, 'pyproject.toml')
if os.path.isfile(pyproject_toml):
return True
return False |
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def is_svn_page(html):
# type: (Union[str, Text]) -> Optional[Match[Union[str, Text]]] """ Returns true if the page appears to be the index page of an svn reposi... |
return (re.search(r'<title>[^<]*Revision \d+:', html) and
re.search(r'Powered by (?:<a[^>]*?>)?Subversion', html, re.I)) |
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def read_chunks(file, size=io.DEFAULT_BUFFER_SIZE):
"""Yield pieces of data from a file-like object until EOF.""" |
while True:
chunk = file.read(size)
if not chunk:
break
yield chunk |
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def normalize_path(path, resolve_symlinks=True):
# type: (str, bool) -> str """ Convert a path to its canonical, case-normalized, absolute version. """ |
path = expanduser(path)
if resolve_symlinks:
path = os.path.realpath(path)
else:
path = os.path.abspath(path)
return os.path.normcase(path) |
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def splitext(path):
# type: (str) -> Tuple[str, str] """Like os.path.splitext, but take off .tar too""" |
base, ext = posixpath.splitext(path)
if base.lower().endswith('.tar'):
ext = base[-4:] + ext
base = base[:-4]
return base, ext |
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def is_local(path):
# type: (str) -> bool """ Return True if path is within sys.prefix, if we're running in a virtualenv. If we're not in a virtualenv, all paths... |
if not running_under_virtualenv():
return True
return normalize_path(path).startswith(normalize_path(sys.prefix)) |
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def dist_is_editable(dist):
# type: (Distribution) -> bool """ Return True if given Distribution is an editable install. """ |
for path_item in sys.path:
egg_link = os.path.join(path_item, dist.project_name + '.egg-link')
if os.path.isfile(egg_link):
return True
return False |
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def egg_link_path(dist):
# type: (Distribution) -> Optional[str] """ Return the path for the .egg-link file if it exists, otherwise, None. There's 3 scenarios: 1... |
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)
... |
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def get_installed_version(dist_name, working_set=None):
"""Get the installed version of dist_name avoiding pkg_resources cache""" |
# Create a requirement that we'll look for inside of setuptools.
req = pkg_resources.Requirement.parse(dist_name)
if working_set is None:
# We want to avoid having this cached, so we need to construct a new
# working set each time.
working_set = pkg_resources.WorkingSet()
# Ge... |
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def make_vcs_requirement_url(repo_url, rev, project_name, subdir=None):
""" Return the URL for a VCS requirement. Args: repo_url: the remote VCS url, with any ne... |
egg_project_name = pkg_resources.to_filename(project_name)
req = '{}@{}#egg={}'.format(repo_url, rev, egg_project_name)
if subdir:
req += '&subdirectory={}'.format(subdir)
return req |
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def split_auth_from_netloc(netloc):
""" Parse out and remove the auth information from a netloc. Returns: (netloc, (username, password)). """ |
if '@' not in netloc:
return netloc, (None, None)
# Split from the right because that's how urllib.parse.urlsplit()
# behaves if more than one @ is present (which can be checked using
# the password attribute of urlsplit()'s return value).
auth, netloc = netloc.rsplit('@', 1)
if ':' in... |
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def protect_pip_from_modification_on_windows(modifying_pip):
"""Protection of pip.exe from modification on Windows On Windows, any operation modifying pip should... |
pip_names = [
"pip.exe",
"pip{}.exe".format(sys.version_info[0]),
"pip{}.{}.exe".format(*sys.version_info[:2])
]
# See https://github.com/pypa/pip/issues/1299 for more discussion
should_show_use_python_msg = (
modifying_pip and
WINDOWS and
os.path.basena... |
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def check_requires_python(requires_python):
# type: (Optional[str]) -> bool """ Check if the python version in use match the `requires_python` specifier. Returns... |
if requires_python is None:
# The package provides no information
return True
requires_python_specifier = specifiers.SpecifierSet(requires_python)
# We only use major.minor.micro
python_version = version.parse('{0}.{1}.{2}'.format(*sys.version_info[:3]))
return python_version in re... |
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def init(complete_options=False, match_incomplete=None):
"""Initialize the enhanced click completion Parameters complete_options : bool always complete the optio... |
global _initialized
if not _initialized:
_patch()
completion_configuration.complete_options = complete_options
if match_incomplete is not None:
completion_configuration.match_incomplete = match_incomplete
_initialized = True |
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def transform_hits(hits):
""" The list from pypi is really a list of versions. We want a list of packages with the list of versions stored inline. This converts ... |
packages = OrderedDict()
for hit in hits:
name = hit['name']
summary = hit['summary']
version = hit['version']
if name not in packages.keys():
packages[name] = {
'name': name,
'summary': summary,
'versions': [version],... |
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def add_requirement( self, install_req, # type: InstallRequirement parent_req_name=None, # type: Optional[str] extras_requested=None # type: Optional[Iterable[str... |
name = install_req.name
# If the markers do not match, ignore this requirement.
if not install_req.match_markers(extras_requested):
logger.info(
"Ignoring %s: markers '%s' don't match your environment",
name, install_req.markers,
)
... |
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def resolve(self, requirement_set):
# type: (RequirementSet) -> None """Resolve what operations need to be done As a side-effect of this method, the packages (an... |
# make the wheelhouse
if self.preparer.wheel_download_dir:
ensure_dir(self.preparer.wheel_download_dir)
# If any top-level requirement has a hash specified, enter
# hash-checking mode, which requires hashes from all.
root_reqs = (
requirement_set.unnamed... |
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def _set_req_to_reinstall(self, req):
# type: (InstallRequirement) -> None """ Set a requirement to be installed. """ |
# Don't uninstall the conflict if doing a user install and the
# conflict is not a user install.
if not self.use_user_site or dist_in_usersite(req.satisfied_by):
req.conflicts_with = req.satisfied_by
req.satisfied_by = None |
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def _check_skip_installed(self, req_to_install):
# type: (InstallRequirement) -> Optional[str] """Check if req_to_install should be skipped. This will check if t... |
if self.ignore_installed:
return None
req_to_install.check_if_exists(self.use_user_site)
if not req_to_install.satisfied_by:
return None
if self.force_reinstall:
self._set_req_to_reinstall(req_to_install)
return None
if not self... |
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def _get_abstract_dist_for(self, req):
# type: (InstallRequirement) -> DistAbstraction """Takes a InstallRequirement and returns a single AbstractDist \ represen... |
assert self.require_hashes is not None, (
"require_hashes should have been set in Resolver.resolve()"
)
if req.editable:
return self.preparer.prepare_editable_requirement(
req, self.require_hashes, self.use_user_site, self.finder,
)
... |
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def _resolve_one( self, requirement_set, # type: RequirementSet req_to_install, # type: InstallRequirement ignore_requires_python=False # type: bool ):
"""Prepar... |
# Tell user what we are doing for this requirement:
# obtain (editable), skipping, processing (local url), collecting
# (remote url or package name)
if req_to_install.constraint or req_to_install.prepared:
return []
req_to_install.prepared = True
# register... |
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def get_installation_order(self, req_set):
# type: (RequirementSet) -> List[InstallRequirement] """Create the installation order. The installation order is topol... |
# The current implementation, which we may change at any point
# installs the user specified things in the order given, except when
# dependencies must come earlier to achieve topological order.
order = []
ordered_reqs = set() # type: Set[InstallRequirement]
def schedu... |
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def line( loc, strg ):
"""Returns the line of text containing loc within a string, counting newlines as line separators. """ |
lastCR = strg.rfind("\n", 0, loc)
nextCR = strg.find("\n", loc)
if nextCR >= 0:
return strg[lastCR+1:nextCR]
else:
return strg[lastCR+1:] |
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def traceParseAction(f):
"""Decorator for debugging parse actions. When the parse action is called, this decorator will print ``">> entering method-name(line:<cu... |
f = _trim_arity(f)
def z(*paArgs):
thisFunc = f.__name__
s,l,t = paArgs[-3:]
if len(paArgs)>3:
thisFunc = paArgs[0].__class__.__name__ + '.' + thisFunc
sys.stderr.write( ">>entering %s(line: '%s', %d, %r)\n" % (thisFunc,line(l,s),l,t) )
try:
ret =... |
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def delimitedList( expr, delim=",", combine=False ):
"""Helper to define a delimited list of expressions - the delimiter defaults to ','. By default, the list el... |
dlName = _ustr(expr)+" ["+_ustr(delim)+" "+_ustr(expr)+"]..."
if combine:
return Combine( expr + ZeroOrMore( delim + expr ) ).setName(dlName)
else:
return ( expr + ZeroOrMore( Suppress( delim ) + expr ) ).setName(dlName) |
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def originalTextFor(expr, asString=True):
"""Helper to return the original, untokenized text for a given expression. Useful to restore the parsed fields of an HT... |
locMarker = Empty().setParseAction(lambda s,loc,t: loc)
endlocMarker = locMarker.copy()
endlocMarker.callPreparse = False
matchExpr = locMarker("_original_start") + expr + endlocMarker("_original_end")
if asString:
extractText = lambda s,l,t: s[t._original_start:t._original_end]
else:
... |
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def locatedExpr(expr):
"""Helper to decorate a returned token with its starting and ending locations in the input string. This helper adds the following results ... |
locator = Empty().setParseAction(lambda s,l,t: l)
return Group(locator("locn_start") + expr("value") + locator.copy().leaveWhitespace()("locn_end")) |
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def matchOnlyAtCol(n):
"""Helper method for defining parse actions that require matching at a specific column in the input text. """ |
def verifyCol(strg,locn,toks):
if col(locn,strg) != n:
raise ParseException(strg,locn,"matched token not at column %d" % n)
return verifyCol |
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def markInputline( self, markerString = ">!<" ):
"""Extracts the exception line from the input string, and marks the location of the exception with a special sym... |
line_str = self.line
line_column = self.column - 1
if markerString:
line_str = "".join((line_str[:line_column],
markerString, line_str[line_column:]))
return line_str.strip() |
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def explain(exc, depth=16):
""" Method to take an exception and translate the Python internal traceback into a list of the pyparsing expressions that caused the ... |
import inspect
if depth is None:
depth = sys.getrecursionlimit()
ret = []
if isinstance(exc, ParseBaseException):
ret.append(exc.line)
ret.append(' ' * (exc.col - 1) + '^')
ret.append("{0}: {1}".format(type(exc).__name__, exc))
if de... |
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def extend( self, itemseq ):
""" Add sequence of elements to end of ParseResults list of elements. Example:: patt = OneOrMore(Word(alphas)) # use a parse action ... |
if isinstance(itemseq, ParseResults):
self += itemseq
else:
self.__toklist.extend(itemseq) |
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def asDict( self ):
""" Returns the named parse results as a nested dictionary. Example:: integer = Word(nums) date_str = integer("year") + '/' + integer("month"... |
if PY_3:
item_fn = self.items
else:
item_fn = self.iteritems
def toItem(obj):
if isinstance(obj, ParseResults):
if obj.haskeys():
return obj.asDict()
else:
return [toItem(v) for v in obj... |
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def getName(self):
r""" Returns the results name for this token expression. Useful when several different expressions might match at a particular location. Examp... |
if self.__name:
return self.__name
elif self.__parent:
par = self.__parent()
if par:
return par.__lookup(self)
else:
return None
elif (len(self) == 1 and
len(self.__tokdict) == 1 and
ne... |
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def setName( self, name ):
""" Define name for this expression, makes debugging and exception messages clearer. Example:: Word(nums).setName("integer").parseStri... |
self.name = name
self.errmsg = "Expected " + self.name
if hasattr(self,"exception"):
self.exception.msg = self.errmsg
return self |
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def setWhitespaceChars( self, chars ):
""" Overrides the default whitespace chars """ |
self.skipWhitespace = True
self.whiteChars = chars
self.copyDefaultWhiteChars = False
return self |
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def setDebugActions( self, startAction, successAction, exceptionAction ):
""" Enable display of debugging messages while doing pattern matching. """ |
self.debugActions = (startAction or _defaultStartDebugAction,
successAction or _defaultSuccessDebugAction,
exceptionAction or _defaultExceptionDebugAction)
self.debug = True
return self |
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def setDebug( self, flag=True ):
""" Enable display of debugging messages while doing pattern matching. Set ``flag`` to True to enable, False to disable. Example... |
if flag:
self.setDebugActions( _defaultStartDebugAction, _defaultSuccessDebugAction, _defaultExceptionDebugAction )
else:
self.debug = False
return self |
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def leaveWhitespace( self ):
"""Extends ``leaveWhitespace`` defined in base class, and also invokes ``leaveWhitespace`` on all contained expressions.""" |
self.skipWhitespace = False
self.exprs = [ e.copy() for e in self.exprs ]
for e in self.exprs:
e.leaveWhitespace()
return self |
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def convertToDate(fmt="%Y-%m-%d"):
""" Helper to create a parse action for converting parsed date string to Python datetime.date Params - - fmt - format to be pa... |
def cvt_fn(s,l,t):
try:
return datetime.strptime(t[0], fmt).date()
except ValueError as ve:
raise ParseException(s, l, str(ve))
return cvt_fn |
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def convertToDatetime(fmt="%Y-%m-%dT%H:%M:%S.%f"):
"""Helper to create a parse action for converting parsed datetime string to Python datetime.datetime Params - ... |
def cvt_fn(s,l,t):
try:
return datetime.strptime(t[0], fmt)
except ValueError as ve:
raise ParseException(s, l, str(ve))
return cvt_fn |
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def _match_vcs_scheme(url):
# type: (str) -> Optional[str] """Look for VCS schemes in the URL. Returns the matched VCS scheme, or None if there's no match. """ |
from pipenv.patched.notpip._internal.vcs import VcsSupport
for scheme in VcsSupport.schemes:
if url.lower().startswith(scheme) and url[len(scheme)] in '+:':
return scheme
return None |
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def _is_url_like_archive(url):
# type: (str) -> bool """Return whether the URL looks like an archive. """ |
filename = Link(url).filename
for bad_ext in ARCHIVE_EXTENSIONS:
if filename.endswith(bad_ext):
return True
return False |
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def _ensure_html_header(response):
# type: (Response) -> None """Check the Content-Type header to ensure the response contains HTML. Raises `_NotHTML` if the con... |
content_type = response.headers.get("Content-Type", "")
if not content_type.lower().startswith("text/html"):
raise _NotHTML(content_type, response.request.method) |
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def _ensure_html_response(url, session):
# type: (str, PipSession) -> None """Send a HEAD request to the URL, and ensure the response contains HTML. Raises `_Not... |
scheme, netloc, path, query, fragment = urllib_parse.urlsplit(url)
if scheme not in {'http', 'https'}:
raise _NotHTTP()
resp = session.head(url, allow_redirects=True)
resp.raise_for_status()
_ensure_html_header(resp) |
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def _get_html_response(url, session):
# type: (str, PipSession) -> Response """Access an HTML page with GET, and return the response. This consists of three part... |
if _is_url_like_archive(url):
_ensure_html_response(url, session=session)
logger.debug('Getting page %s', url)
resp = session.get(
url,
headers={
"Accept": "text/html",
# We don't want to blindly returned cached data for
# /simple/, because auth... |
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def _find_name_version_sep(egg_info, canonical_name):
# type: (str, str) -> int """Find the separator's index based on the package's canonical name. `egg_info` m... |
# Project name and version must be separated by one single dash. Find all
# occurrences of dashes; if the string in front of it matches the canonical
# name, this is the one separating the name and version parts.
for i, c in enumerate(egg_info):
if c != "-":
continue
if cano... |
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def _egg_info_matches(egg_info, canonical_name):
# type: (str, str) -> Optional[str] """Pull the version part out of a string. :param egg_info: The string to par... |
try:
version_start = _find_name_version_sep(egg_info, canonical_name) + 1
except ValueError:
return None
version = egg_info[version_start:]
if not version:
return None
return version |
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def _determine_base_url(document, page_url):
"""Determine the HTML document's base URL. This looks for a ``<base>`` tag in the HTML document. If present, its hre... |
for base in document.findall(".//base"):
href = base.get("href")
if href is not None:
return href
return page_url |
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def _get_encoding_from_headers(headers):
"""Determine if we have any encoding information in our headers. """ |
if headers and "Content-Type" in headers:
content_type, params = cgi.parse_header(headers["Content-Type"])
if "charset" in params:
return params['charset']
return None |
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def _get_index_urls_locations(self, project_name):
# type: (str) -> List[str] """Returns the locations found via self.index_urls Checks the url_name on the main ... |
def mkurl_pypi_url(url):
loc = posixpath.join(
url,
urllib_parse.quote(canonicalize_name(project_name)))
# For maximum compatibility with easy_install, ensure the path
# ends in a trailing slash. Although this isn't in the spec
#... |
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def find_all_candidates(self, project_name):
# type: (str) -> List[Optional[InstallationCandidate]] """Find all available InstallationCandidate for project_name ... |
index_locations = self._get_index_urls_locations(project_name)
index_file_loc, index_url_loc = self._sort_locations(index_locations)
fl_file_loc, fl_url_loc = self._sort_locations(
self.find_links, expand_dir=True,
)
file_locations = (Link(url) for url in itertools.... |
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def find_requirement(self, req, upgrade, ignore_compatibility=False):
# type: (InstallRequirement, bool, bool) -> Optional[Link] """Try to find a Link matching r... |
all_candidates = self.find_all_candidates(req.name)
# Filter out anything which doesn't match our specifier
compatible_versions = set(
req.specifier.filter(
# We turn the version object into a str here because otherwise
# when we're debundled but set... |
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def _link_package_versions(self, link, search, ignore_compatibility=True):
# type: (Link, Search, bool) -> Optional[InstallationCandidate] """Return an Installat... |
version = None
if link.egg_fragment:
egg_info = link.egg_fragment
ext = link.ext
else:
egg_info, ext = link.splitext()
if not ext:
self._log_skipped_link(link, 'not a file')
return None
if ext not in SUP... |
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Description:
| def run(command, timeout=30, withexitstatus=False, events=None,
extra_args=None, logfile=None, cwd=None, env=None, **kwargs):
'''
This function runs the given command; waits for it to finish; then
returns all output as a string. STDERR is included in output. If the full
path to the command is n... |
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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
def register_hook(self, event, hook):
"""Properly register a hook.""" |
if event not in self.hooks:
raise ValueError('Unsupported event specified, with event name "%s"' % (event))
if isinstance(hook, Callable):
self.hooks[event].append(hook)
elif hasattr(hook, '__iter__'):
self.hooks[event].extend(h for h in hook if isinstance(... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
def deregister_hook(self, event, hook):
"""Deregister a previously registered hook. Returns True if the hook existed, False if not. """ |
try:
self.hooks[event].remove(hook)
return True
except ValueError:
return False |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
def prepare(self, method=None, url=None, headers=None, files=None, data=None, params=None, auth=None, cookies=None, hooks=None, json=None):
"""Prepares the entir... |
self.prepare_method(method)
self.prepare_url(url, params)
self.prepare_headers(headers)
self.prepare_cookies(cookies)
self.prepare_body(data, files, json)
self.prepare_auth(auth, url)
# Note that prepare_auth must be last to enable authentication schemes
... |
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