diff --git a/pvlib/pvsystem.py b/pvlib/pvsystem.py
index 86aa415bda..0e05981b08 100644
--- a/pvlib/pvsystem.py
+++ b/pvlib/pvsystem.py
@@ -2459,7 +2459,9 @@ def singlediode(photocurrent, saturation_current, resistance_series,
        photovoltaic cell interconnection circuits" JW Bishop, Solar Cell (1988)
        https://doi.org/10.1016/0379-6787(88)90059-2
     """
+    I = 10
     if ivcurve_pnts:
+        print(I)
         warn_deprecated('0.10.0', name='pvlib.pvsystem.singlediode',
                         alternative=('pvlib.pvsystem.v_from_i and '
                                      'pvlib.pvsystem.i_from_v'),
diff --git a/pvlib/singlediode.py b/pvlib/singlediode.py
index a4a760f1b9..992d4727c1 100644
--- a/pvlib/singlediode.py
+++ b/pvlib/singlediode.py
@@ -782,6 +782,7 @@ def _lambertw_i_from_v(voltage, photocurrent, saturation_current,
 
 def _lambertw(photocurrent, saturation_current, resistance_series,
               resistance_shunt, nNsVth, ivcurve_pnts=None):
+    print('line too long aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa')
     # collect args
     params = {'photocurrent': photocurrent,
               'saturation_current': saturation_current,