flake8, update changelog

doc/changelog.rst

@@ -19,7 +19,7 @@ unreleased
     - improve SLURM scripts with named arguments :mr:`176`
   
 - **New Features**
-
+    - add routine for fluence calibration :mr:`180`
 
 1.5.0
 -----

src/toolbox_scs/misc/laser_utils.py

@@ -102,10 +102,13 @@ def fluenceCalibration(hwp, power_mW, npulses, w0x, w0y=None,
         ax.set_xlabel(xlabel)
         ax.legend()
         ax.grid()
-        ax2 = ax.secondary_yaxis(
-            'right',
-            functions=(lambda x: 1e7*x*np.pi*w0x*w0y/2,
-                       lambda x: 1e-7*2*x/(np.pi*w0x*w0y)))
+
+        def eTf(x):
+            return 1e-7*2*x/(np.pi*w0x*w0y)
+
+        def fTe(x):
+            return 1e7*x*np.pi*w0x*w0y/2
+        ax2 = ax.secondary_yaxis('right', functions=(fTe, eTf))
         ax2.set_ylabel(r'Pulse energy [$\mu$J]')
         fig.tight_layout()
     return F*1e-1, fit_F, E*1e6, fit_E