Cleaned up getEnergy.py.

Author: kumaranu

src/MolecularDockingKit/getEnergy.py

@@ -1,32 +1,58 @@
-import os, glob, re, sys
+import os
 import numpy as np
 
-#######################################################################
-#                                                                     #
-# This script extracts the energies for the three components required #
-# in the binding energy calculations, which are (protein + ligand),   #
-# protein, and ligand energies. It calculates the binding energies    #
-# for all the drug molecules and prints them in kcal/mol.             #
-#                                                                     #
-#######################################################################
-
-
-os.chdir('../../moleculeLists')
-molList = open('fileList.txt', 'r').readlines()
-molList = [mol.strip() for mol in molList]
-os.chdir('../../../')
-
-e1 = np.loadtxt('energy_protein/energies.txt')
-
-os.chdir('rDock_inputs')
-for mol in molList:
-    os.chdir(mol)
-    try:
-        eCombined = np.loadtxt('energies.txt')
-        print("%s, %3f, %3f, %3f, %3f, %3f" % (mol, eCombined[0], eCombined[1], e1, (eCombined[0] - eCombined[1] - e1), (eCombined[0] - eCombined[1] - e1)*627.503))
-        os.chdir('../../../')
-    except:
-        os.chdir('../../../')
-        continue
-        print(mol, 'skipped due to some error')
-os.chdir('../../../')
+def calculate_binding_energy(mol_list: list[str], protein_energy: float) -> None:
+    """
+    Extracts the energies for the three components required in the binding energy calculations,
+    which are (protein + ligand), protein, and ligand energies. It calculates the binding energies
+    for all the drug molecules and prints them in kcal/mol.
+
+    Args:
+        mol_list (list[str]): List of molecules.
+        protein_energy (float): Energy of the protein component.
+
+    Returns:
+        None
+    """
+    # Change directory to moleculeLists to access fileList.txt
+    os.chdir('../../moleculeLists')
+    mol_list = open('fileList.txt', 'r').readlines()
+    mol_list = [mol.strip() for mol in mol_list]
+    os.chdir('../../../')
+
+    e_protein = np.loadtxt('energy_protein/energies.txt')
+
+    os.chdir('rDock_inputs')
+    for mol in mol_list:
+        os.chdir(mol)
+        try:
+            e_combined = np.loadtxt('energies.txt')
+            ligand_energy, binding_energy = calculate_energy_components(e_combined, e_protein)
+            print(f"{mol}, {e_combined[0]}, {e_combined[1]}, {e_protein}, {binding_energy}, {binding_energy * 627.503}")
+            os.chdir('../../../')
+        except Exception as e:
+            os.chdir('../../../')
+            print(f"{mol} skipped due to error: {e}")
+            continue
+    os.chdir('../../../')
+
+def calculate_energy_components(e_combined: np.ndarray, e_protein: float) -> tuple[float, float]:
+    """
+    Calculates the energy of the ligand and binding energy.
+
+    Args:
+        e_combined (np.ndarray): Array containing energies for (protein + ligand).
+        e_protein (float): Energy of the protein component.
+
+    Returns:
+        Tuple containing ligand energy and binding energy.
+    """
+    ligand_energy = e_combined[0] - e_combined[1]
+    binding_energy = ligand_energy - e_protein
+    return ligand_energy, binding_energy
+
+# Example usage
+if __name__ == "__main__":
+    molList = ['mol1', 'mol2']  # Example list of molecules
+    proteinEnergy = 10.0  # Example protein energy
+    calculate_binding_energy(molList, proteinEnergy)