Use in-place assignment to avoid an unnecessary copy of the array.

pcigale/creation_modules/dustatt_calzleit.py

@@ -162,10 +162,9 @@ def a_vs_ebv(wavelength, bump_wave, bump_width, bump_ampl, power_slope):
     mask = (attenuation < 0)
     attenuation[mask] = 0
     # Power law
-    attenuation = attenuation * power_law(wavelength, power_slope)
+    attenuation *= power_law(wavelength, power_slope)
     # UV bump
-    attenuation = attenuation + uv_bump(wavelength, bump_wave,
-                                        bump_width, bump_ampl)
+    attenuation += uv_bump(wavelength, bump_wave, bump_width, bump_ampl)
 
     return attenuation
 

pcigale/creation_modules/dustatt_powerlaw.py

@@ -90,8 +90,7 @@ def alambda_av(wavelength, delta, bump_wave, bump_width, bump_ampl):
     wave = np.array(wavelength)
 
     attenuation = power_law(wave, delta)
-    attenuation = attenuation + uv_bump(wavelength, bump_wave,
-                                        bump_width, bump_ampl)
+    attenuation += uv_bump(wavelength, bump_wave, bump_width, bump_ampl)
 
     return attenuation
 

pcigale/creation_modules/sfh2exp.py

@@ -110,7 +110,7 @@ class Sfh2Exp(CreationModule):
         # produced if asked to.
         galaxy_mass = np.trapz(sfr, time_grid) * 1e6
         if normalise:
-            sfr = sfr / galaxy_mass
+            sfr /= galaxy_mass
             galaxy_mass = 1.
         else:
             sfr *= sfr_0

pcigale/creation_modules/sfh_buat08.py

@@ -96,7 +96,7 @@ class SfhBuat08(CreationModule):
         # produced if asked to.
         galaxy_mass = np.trapz(sfr, time_grid) * 1e6
         if normalise:
-            sfr = sfr / galaxy_mass
+            sfr /= galaxy_mass
             galaxy_mass = 1.
 
         sed.add_module(self.name, self.parameters)

pcigale/creation_modules/sfh_quenching.py

@@ -83,7 +83,7 @@ class SfhQuench(CreationModule):
             # produced if asked to.
             galaxy_mass = np.trapz(sfr, time) * 1e6
             if normalise:
-                sfr = sfr / galaxy_mass
+                sfr /= galaxy_mass
                 galaxy_mass = 1.
 
             sed.sfh = (time, sfr)

pcigale/creation_modules/sfhdelayed.py

@@ -79,7 +79,7 @@ class SFHDelayed(CreationModule):
         # produced if asked to.
         galaxy_mass = np.trapz(sfr, time_grid) * 1e6
         if normalise:
-            sfr = sfr / galaxy_mass
+            sfr /= galaxy_mass
             galaxy_mass = 1.
         else:
             sfr *= sfr_A

pcigale/creation_modules/sfhfromfile.py

@@ -85,7 +85,7 @@ class SfhFromFile(CreationModule):
         # produced if asked to.
         galaxy_mass = np.trapz(sfr, time_grid) * 1e6
         if normalise:
-            sfr = sfr / galaxy_mass
+            sfr /= galaxy_mass
             galaxy_mass = 1.
 
         sed.add_module(self.name, self.parameters)

pcigale/creation_modules/sfhperiodic.py

@@ -98,7 +98,7 @@ class SfhPeriodic(CreationModule):
         # produced if asked to.
         self.galaxy_mass = np.trapz(self.sfr, self.time_grid) * 1e6
         if normalise:
-            self.sfr = self.sfr / self.galaxy_mass
+            self.sfr /= self.galaxy_mass
             self.galaxy_mass = 1.
         else:
             self.sfr *= sfr_A