

import importlib.metadata
import sys

from transformers.testing_utils import TestCasePlus
from transformers.utils.versions import require_version, require_version_core


lowerCAmelCase							:						Union[str, Any]     			=		importlib.metadata.version("""numpy""")
lowerCAmelCase							:						int     			=		""".""".join([str(x) for x in sys.version_info[:3]])



class 						__lowercase       (				UpperCAmelCase_			):




			"""simple docstring"""







			def  _SCREAMING_SNAKE_CASE    (				self						:  int):
									# lt + different version strings
									require_version_core("numpy<1000.4.5")
									require_version_core("numpy<1000.4")
									require_version_core("numpy<1000")

									# le
									require_version_core("numpy<=1000.4.5")
									require_version_core(F"numpy<={numpy_ver}")

									# eq
									require_version_core(F"numpy=={numpy_ver}")

									# ne
									require_version_core("numpy!=1000.4.5")

									# ge
									require_version_core("numpy>=1.0")
									require_version_core("numpy>=1.0.0")
									require_version_core(F"numpy>={numpy_ver}")

									# gt
									require_version_core("numpy>1.0.0")

									# mix
									require_version_core("numpy>1.0.0,<1000")

									# requirement w/o version
									require_version_core("numpy")

									# unmet requirements due to version conflict
									for req in ["numpy==1.0.0", "numpy>=1000.0.0", F"numpy<{numpy_ver}"]:
															try:
																					require_version_core(lowerCAmelCase__)
															except ImportError as e:
																					self.assertIn(F"{req} is required"     ,		str(lowerCAmelCase__))
																					self.assertIn("but found"     ,		str(lowerCAmelCase__))

        # unmet requirements due to missing module
									for req in ["numpipypie>1", "numpipypie2"]:
															try:
																					require_version_core(lowerCAmelCase__)
															except importlib.metadata.PackageNotFoundError as e:
																					self.assertIn(F"The '{req}' distribution was not found and is required by this application"     ,		str(lowerCAmelCase__))
																					self.assertIn("Try: pip install transformers -U"     ,		str(lowerCAmelCase__))

        # bogus requirements formats:
        # 1. whole thing
									for req in ["numpy??1.0.0", "numpy1.0.0"]:
															try:
																					require_version_core(lowerCAmelCase__)
															except ValueError as e:
																					self.assertIn("requirement needs to be in the pip package format"     ,		str(lowerCAmelCase__))
        # 2. only operators
									for req in ["numpy=1.0.0", "numpy == 1.00", "numpy<>1.0.0", "numpy><1.00", "numpy>>1.0.0"]:
															try:
																					require_version_core(lowerCAmelCase__)
															except ValueError as e:
																					self.assertIn("need one of "     ,		str(lowerCAmelCase__))




			def  _SCREAMING_SNAKE_CASE    (				self						:  List[str]):
									# matching requirement
									require_version("python>=3.6.0")

									# not matching requirements
									for req in ["python>9.9.9", "python<3.0.0"]:
															try:
																					require_version_core(lowerCAmelCase__)
															except ImportError as e:
																					self.assertIn(F"{req} is required"     ,		str(lowerCAmelCase__))
																					self.assertIn(F"but found python=={python_ver}"     ,		str(lowerCAmelCase__))









import heapq







def     A_   (					_UpperCAmelCase       ,			_UpperCAmelCase       ,			_UpperCAmelCase					):
						SCREAMING_SNAKE_CASE_:				List[Any]							= [(0, start)]  # cost from start node,end node
						SCREAMING_SNAKE_CASE_:				Any							= set()
						while heap:
												((SCREAMING_SNAKE_CASE_)	,					(SCREAMING_SNAKE_CASE_)):				Tuple							= heapq.heappop(_UpperCAmelCase					)
												if u in visited:
																		continue
												visited.add(_UpperCAmelCase					)
												if u == end:
																		return cost
												for v, c in graph[u]:
																		if v in visited:
																								continue
																		SCREAMING_SNAKE_CASE_:				List[str]							= cost + c
																		heapq.heappush(_UpperCAmelCase       ,			(next_item, v)					)
						return -1


lowerCAmelCase							:						Optional[Any]     			=		{
    """A""": [["""B""", 2], ["""C""", 5]],
    """B""": [["""A""", 2], ["""D""", 3], ["""E""", 1], ["""F""", 1]],
    """C""": [["""A""", 5], ["""F""", 3]],
    """D""": [["""B""", 3]],
    """E""": [["""B""", 4], ["""F""", 3]],
    """F""": [["""C""", 3], ["""E""", 3]],
}
lowerCAmelCase							:						Tuple     			=		{
    """B""": [["""C""", 1]],
    """C""": [["""D""", 1]],
    """D""": [["""F""", 1]],
    """E""": [["""B""", 1], ["""F""", 3]],
    """F""": [],
}
lowerCAmelCase							:						str     			=		{
    """B""": [["""C""", 1]],
    """C""": [["""D""", 1]],
    """D""": [["""F""", 1]],
    """E""": [["""B""", 1], ["""G""", 2]],
    """F""": [],
    """G""": [["""F""", 1]],
}

lowerCAmelCase							:						Union[str, Any]     			=		dijkstra(G, """E""", """C""")
print(short_distance)  # E -- 3 --> F -- 3 --> C == 6

lowerCAmelCase							:						Tuple     			=		dijkstra(Ga, """E""", """F""")
print(short_distance)  # E -- 3 --> F == 3

lowerCAmelCase							:						Union[str, Any]     			=		dijkstra(Ga, """E""", """F""")
print(short_distance)  # E -- 2 --> G -- 1 --> F == 3

if __name__ == "__main__":
						import doctest

						doctest.testmod()






