from pipenv.patched.notpip._vendor.pyparsing import Literal as L # noqa
from pipenv.patched.notpip._vendor.six.moves.urllib import parse as urlparse
from .markers import MARKER_EXPR, Marker
from .specifiers import LegacySpecifier, Specifier, SpecifierSet
class InvalidRequirement(ValueError):
"""
An invalid requirement was found, users should refer to PEP 508.
"""
ALPHANUM = Word(string.ascii_letters + string.digits)
LBRACKET = L("[").suppress()
RBRACKET = L("]").suppress()
LPAREN = L("(").suppress()
RPAREN = L(")").suppress()
COMMA = L(",").suppress()
SEMICOLON = L(";").suppress()
AT = L("@").suppress()
PUNCTUATION = Word("-_.")
IDENTIFIER_END = ALPHANUM | (ZeroOrMore(PUNCTUATION) + ALPHANUM)
IDENTIFIER = Combine(ALPHANUM + ZeroOrMore(IDENTIFIER_END))
NAME = IDENTIFIER("name")
EXTRA = IDENTIFIER
URI = Regex(r'[^ ]+')("url")
def serialize(self):
return str(self)
class Value(Node):
def serialize(self):
return '"{0}"'.format(self)
class Op(Node):
def serialize(self):
return str(self)
VARIABLE = (
L("implementation_version") | L("platform_python_implementation")
| L("implementation_name") | L("python_full_version")
| L("platform_release") | L("platform_version") | L("platform_machine")
| L("platform_system") | L("python_version") | L("sys_platform")
| L("os_name") | L("os.name") | # PEP-345
L("sys.platform") | # PEP-345
L("platform.version") | # PEP-345
L("platform.machine") | # PEP-345
L("platform.python_implementation") | # PEP-345
L("python_implementation") | # undocumented setuptools legacy
L("extra"))
ALIASES = {
'os.name': 'os_name',
'sys.platform': 'sys_platform',
'platform.version': 'platform_version',
'platform.machine': 'platform_machine',