



from .balanced_parentheses import balanced_parentheses
from .stack import Stack







def 				A			(		__UpperCAmelCase	)       ->       int:



						'''simple docstring'''






						return {"+": 1, "-": 1, "*": 2, "/": 2, "^": 3}.get(__UpperCAmelCase							,					-1	)







def 				A			(		__UpperCAmelCase	)       ->       str:



						'''simple docstring'''






						if not balanced_parentheses(__UpperCAmelCase	):
												raise ValueError('''Mismatched parentheses'''	)
						UpperCAmelCase_     							=     Stack()
						UpperCAmelCase_     							=     []
						for char in expression_str:
												if char.isalpha() or char.isdigit():
																		postfix.append(__UpperCAmelCase	)
												elif char == "(":
																		stack.push(__UpperCAmelCase	)
												elif char == ")":
																		while not stack.is_empty() and stack.peek() != "(":
																								postfix.append(stack.pop()	)
																		stack.pop()
												else:
																		while not stack.is_empty() and precedence(__UpperCAmelCase	) <= precedence(stack.peek()	):
																								postfix.append(stack.pop()	)
																		stack.push(__UpperCAmelCase	)
						while not stack.is_empty():
												postfix.append(stack.pop()	)
						return " ".join(__UpperCAmelCase	)


if __name__ == "__main__":
							from doctest import testmod

							testmod()
							UpperCamelCase_	       =   "a+b*(c^d-e)^(f+g*h)-i"

							print("Infix to Postfix Notation demonstration:\n")
							print("Infix notation: " + expression)
							print("Postfix notation: " + infix_to_postfix(expression))










from .chunk_utils import chunk_layer
from .data_transforms import make_atomaa_masks
from .feats import atomaa_to_atomaa, frames_and_literature_positions_to_atomaa_pos, torsion_angles_to_frames
from .loss import compute_predicted_aligned_error, compute_tm
from .protein import Protein as OFProtein
from .protein import to_pdb
from .rigid_utils import Rigid, Rotation
from .tensor_utils import dict_multimap, flatten_final_dims, permute_final_dims





