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__pycache__	-	Open
composer.py	4.77 MB	View DL Edit
constructor.py	27.97 MB	View DL Edit
cyaml.py	3.76 MB	View DL Edit
dumper.py	2.77 MB	View DL Edit
emitter.py	42 MB	View DL Edit
error.py	2.47 MB	View DL Edit
events.py	2.39 MB	View DL Edit
loader.py	2.01 MB	View DL Edit
nodes.py	1.41 MB	View DL Edit
parser.py	24.9 MB	View DL Edit
reader.py	6.63 MB	View DL Edit
representer.py	13.85 MB	View DL Edit
resolver.py	8.79 MB	View DL Edit
scanner.py	50.08 MB	View DL Edit
serializer.py	4.07 MB	View DL Edit
tokens.py	2.51 MB	View DL Edit
_yaml.cpython-39-x86_64-linux-gnu.so	240.62 MB	View DL Edit
__init__.py	12.86 MB	View DL Edit

Edit file: /usr/lib64/python3.9/site-packages/yaml/__init__.py

from .error import *

from .tokens import *
from .events import *
from .nodes import *

from .loader import *
from .dumper import *

__version__ = '5.4.1'
try:
    from .cyaml import *
    __with_libyaml__ = True
except ImportError:
    __with_libyaml__ = False

import io

#------------------------------------------------------------------------------
# Warnings control
#------------------------------------------------------------------------------

# 'Global' warnings state:
_warnings_enabled = {
    'YAMLLoadWarning': True,
}

# Get or set global warnings' state
def warnings(settings=None):
    if settings is None:
        return _warnings_enabled

if type(settings) is dict:
        for key in settings:
            if key in _warnings_enabled:
                _warnings_enabled[key] = settings[key]

# Warn when load() is called without Loader=...
class YAMLLoadWarning(RuntimeWarning):
    pass

def load_warning(method):
    if _warnings_enabled['YAMLLoadWarning'] is False:
        return

import warnings

message = (
        "calling yaml.%s() without Loader=... is deprecated, as the "
        "default Loader is unsafe. Please read "
        "https://msg.pyyaml.org/load for full details."
    ) % method

warnings.warn(message, YAMLLoadWarning, stacklevel=3)

#------------------------------------------------------------------------------
def scan(stream, Loader=Loader):
    """
    Scan a YAML stream and produce scanning tokens.
    """
    loader = Loader(stream)
    try:
        while loader.check_token():
            yield loader.get_token()
    finally:
        loader.dispose()

def parse(stream, Loader=Loader):
    """
    Parse a YAML stream and produce parsing events.
    """
    loader = Loader(stream)
    try:
        while loader.check_event():
            yield loader.get_event()
    finally:
        loader.dispose()

def compose(stream, Loader=Loader):
    """
    Parse the first YAML document in a stream
    and produce the corresponding representation tree.
    """
    loader = Loader(stream)
    try:
        return loader.get_single_node()
    finally:
        loader.dispose()

def compose_all(stream, Loader=Loader):
    """
    Parse all YAML documents in a stream
    and produce corresponding representation trees.
    """
    loader = Loader(stream)
    try:
        while loader.check_node():
            yield loader.get_node()
    finally:
        loader.dispose()

def load(stream, Loader=None):
    """
    Parse the first YAML document in a stream
    and produce the corresponding Python object.
    """
    if Loader is None:
        load_warning('load')
        Loader = FullLoader

loader = Loader(stream)
    try:
        return loader.get_single_data()
    finally:
        loader.dispose()

def load_all(stream, Loader=None):
    """
    Parse all YAML documents in a stream
    and produce corresponding Python objects.
    """
    if Loader is None:
        load_warning('load_all')
        Loader = FullLoader

loader = Loader(stream)
    try:
        while loader.check_data():
            yield loader.get_data()
    finally:
        loader.dispose()

def full_load(stream):
    """
    Parse the first YAML document in a stream
    and produce the corresponding Python object.

Resolve all tags except those known to be
    unsafe on untrusted input.
    """
    return load(stream, FullLoader)

def full_load_all(stream):
    """
    Parse all YAML documents in a stream
    and produce corresponding Python objects.

Resolve all tags except those known to be
    unsafe on untrusted input.
    """
    return load_all(stream, FullLoader)

def safe_load(stream):
    """
    Parse the first YAML document in a stream
    and produce the corresponding Python object.

Resolve only basic YAML tags. This is known
    to be safe for untrusted input.
    """
    return load(stream, SafeLoader)

def safe_load_all(stream):
    """
    Parse all YAML documents in a stream
    and produce corresponding Python objects.

Resolve only basic YAML tags. This is known
    to be safe for untrusted input.
    """
    return load_all(stream, SafeLoader)

def unsafe_load(stream):
    """
    Parse the first YAML document in a stream
    and produce the corresponding Python object.

Resolve all tags, even those known to be
    unsafe on untrusted input.
    """
    return load(stream, UnsafeLoader)

def unsafe_load_all(stream):
    """
    Parse all YAML documents in a stream
    and produce corresponding Python objects.

Resolve all tags, even those known to be
    unsafe on untrusted input.
    """
    return load_all(stream, UnsafeLoader)

def emit(events, stream=None, Dumper=Dumper,
        canonical=None, indent=None, width=None,
        allow_unicode=None, line_break=None):
    """
    Emit YAML parsing events into a stream.
    If stream is None, return the produced string instead.
    """
    getvalue = None
    if stream is None:
        stream = io.StringIO()
        getvalue = stream.getvalue
    dumper = Dumper(stream, canonical=canonical, indent=indent, width=width,
            allow_unicode=allow_unicode, line_break=line_break)
    try:
        for event in events:
            dumper.emit(event)
    finally:
        dumper.dispose()
    if getvalue:
        return getvalue()

def serialize_all(nodes, stream=None, Dumper=Dumper,
        canonical=None, indent=None, width=None,
        allow_unicode=None, line_break=None,
        encoding=None, explicit_start=None, explicit_end=None,
        version=None, tags=None):
    """
    Serialize a sequence of representation trees into a YAML stream.
    If stream is None, return the produced string instead.
    """
    getvalue = None
    if stream is None:
        if encoding is None:
            stream = io.StringIO()
        else:
            stream = io.BytesIO()
        getvalue = stream.getvalue
    dumper = Dumper(stream, canonical=canonical, indent=indent, width=width,
            allow_unicode=allow_unicode, line_break=line_break,
            encoding=encoding, version=version, tags=tags,
            explicit_start=explicit_start, explicit_end=explicit_end)
    try:
        dumper.open()
        for node in nodes:
            dumper.serialize(node)
        dumper.close()
    finally:
        dumper.dispose()
    if getvalue:
        return getvalue()

def serialize(node, stream=None, Dumper=Dumper, **kwds):
    """
    Serialize a representation tree into a YAML stream.
    If stream is None, return the produced string instead.
    """
    return serialize_all([node], stream, Dumper=Dumper, **kwds)

def dump_all(documents, stream=None, Dumper=Dumper,
        default_style=None, default_flow_style=False,
        canonical=None, indent=None, width=None,
        allow_unicode=None, line_break=None,
        encoding=None, explicit_start=None, explicit_end=None,
        version=None, tags=None, sort_keys=True):
    """
    Serialize a sequence of Python objects into a YAML stream.
    If stream is None, return the produced string instead.
    """
    getvalue = None
    if stream is None:
        if encoding is None:
            stream = io.StringIO()
        else:
            stream = io.BytesIO()
        getvalue = stream.getvalue
    dumper = Dumper(stream, default_style=default_style,
            default_flow_style=default_flow_style,
            canonical=canonical, indent=indent, width=width,
            allow_unicode=allow_unicode, line_break=line_break,
            encoding=encoding, version=version, tags=tags,
            explicit_start=explicit_start, explicit_end=explicit_end, sort_keys=sort_keys)
    try:
        dumper.open()
        for data in documents:
            dumper.represent(data)
        dumper.close()
    finally:
        dumper.dispose()
    if getvalue:
        return getvalue()

def dump(data, stream=None, Dumper=Dumper, **kwds):
    """
    Serialize a Python object into a YAML stream.
    If stream is None, return the produced string instead.
    """
    return dump_all([data], stream, Dumper=Dumper, **kwds)

def safe_dump_all(documents, stream=None, **kwds):
    """
    Serialize a sequence of Python objects into a YAML stream.
    Produce only basic YAML tags.
    If stream is None, return the produced string instead.
    """
    return dump_all(documents, stream, Dumper=SafeDumper, **kwds)

def safe_dump(data, stream=None, **kwds):
    """
    Serialize a Python object into a YAML stream.
    Produce only basic YAML tags.
    If stream is None, return the produced string instead.
    """
    return dump_all([data], stream, Dumper=SafeDumper, **kwds)

def add_implicit_resolver(tag, regexp, first=None,
        Loader=None, Dumper=Dumper):
    """
    Add an implicit scalar detector.
    If an implicit scalar value matches the given regexp,
    the corresponding tag is assigned to the scalar.
    first is a sequence of possible initial characters or None.
    """
    if Loader is None:
        loader.Loader.add_implicit_resolver(tag, regexp, first)
        loader.FullLoader.add_implicit_resolver(tag, regexp, first)
        loader.UnsafeLoader.add_implicit_resolver(tag, regexp, first)
    else:
        Loader.add_implicit_resolver(tag, regexp, first)
    Dumper.add_implicit_resolver(tag, regexp, first)

def add_path_resolver(tag, path, kind=None, Loader=None, Dumper=Dumper):
    """
    Add a path based resolver for the given tag.
    A path is a list of keys that forms a path
    to a node in the representation tree.
    Keys can be string values, integers, or None.
    """
    if Loader is None:
        loader.Loader.add_path_resolver(tag, path, kind)
        loader.FullLoader.add_path_resolver(tag, path, kind)
        loader.UnsafeLoader.add_path_resolver(tag, path, kind)
    else:
        Loader.add_path_resolver(tag, path, kind)
    Dumper.add_path_resolver(tag, path, kind)

def add_constructor(tag, constructor, Loader=None):
    """
    Add a constructor for the given tag.
    Constructor is a function that accepts a Loader instance
    and a node object and produces the corresponding Python object.
    """
    if Loader is None:
        loader.Loader.add_constructor(tag, constructor)
        loader.FullLoader.add_constructor(tag, constructor)
        loader.UnsafeLoader.add_constructor(tag, constructor)
    else:
        Loader.add_constructor(tag, constructor)

def add_multi_constructor(tag_prefix, multi_constructor, Loader=None):
    """
    Add a multi-constructor for the given tag prefix.
    Multi-constructor is called for a node if its tag starts with tag_prefix.
    Multi-constructor accepts a Loader instance, a tag suffix,
    and a node object and produces the corresponding Python object.
    """
    if Loader is None:
        loader.Loader.add_multi_constructor(tag_prefix, multi_constructor)
        loader.FullLoader.add_multi_constructor(tag_prefix, multi_constructor)
        loader.UnsafeLoader.add_multi_constructor(tag_prefix, multi_constructor)
    else:
        Loader.add_multi_constructor(tag_prefix, multi_constructor)

def add_representer(data_type, representer, Dumper=Dumper):
    """
    Add a representer for the given type.
    Representer is a function accepting a Dumper instance
    and an instance of the given data type
    and producing the corresponding representation node.
    """
    Dumper.add_representer(data_type, representer)

def add_multi_representer(data_type, multi_representer, Dumper=Dumper):
    """
    Add a representer for the given type.
    Multi-representer is a function accepting a Dumper instance
    and an instance of the given data type or subtype
    and producing the corresponding representation node.
    """
    Dumper.add_multi_representer(data_type, multi_representer)

class YAMLObjectMetaclass(type):
    """
    The metaclass for YAMLObject.
    """
    def __init__(cls, name, bases, kwds):
        super(YAMLObjectMetaclass, cls).__init__(name, bases, kwds)
        if 'yaml_tag' in kwds and kwds['yaml_tag'] is not None:
            if isinstance(cls.yaml_loader, list):
                for loader in cls.yaml_loader:
                    loader.add_constructor(cls.yaml_tag, cls.from_yaml)
            else:
                cls.yaml_loader.add_constructor(cls.yaml_tag, cls.from_yaml)

cls.yaml_dumper.add_representer(cls, cls.to_yaml)

class YAMLObject(metaclass=YAMLObjectMetaclass):
    """
    An object that can dump itself to a YAML stream
    and load itself from a YAML stream.
    """

__slots__ = ()  # no direct instantiation, so allow immutable subclasses

yaml_loader = [Loader, FullLoader, UnsafeLoader]
    yaml_dumper = Dumper

yaml_tag = None
    yaml_flow_style = None

@classmethod
    def from_yaml(cls, loader, node):
        """
        Convert a representation node to a Python object.
        """
        return loader.construct_yaml_object(node, cls)

@classmethod
    def to_yaml(cls, dumper, data):
        """
        Convert a Python object to a representation node.
        """
        return dumper.represent_yaml_object(cls.yaml_tag, data, cls,
                flow_style=cls.yaml_flow_style)

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