Add log in GUI

check.sh

@@ -4,4 +4,4 @@ blackdoc src tests examples
 flake8 tests examples src --count --select=E9,F63,F7,F82 --show-source --statistics
 # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
 flake8 tests examples src --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
-pytest -vv --cov py_eddy_tracker --cov-report html
+python -m pytest -vv --cov py_eddy_tracker --cov-report html

src/py_eddy_tracker/dataset/grid.py

@@ -407,7 +407,7 @@ def get_mask(a):
         if len(a.mask.shape):
             m = a.mask
         else:
-            m = ones(a.shape, dtype='bool') if a.mask else zeros(a.shape, dtype='bool')
+            m = ones(a.shape, dtype="bool") if a.mask else zeros(a.shape, dtype="bool")
         return m
 
     @staticmethod

src/py_eddy_tracker/gui.py

@@ -3,6 +3,7 @@
 GUI class
 """
 
+import logging
 from datetime import datetime, timedelta
 
 import matplotlib.pyplot as plt
@@ -11,6 +12,8 @@
 
 from .generic import flatten_line_matrix, split_line
 
+logger = logging.getLogger("pet")
+
 try:
     from pylook.axes import PlatCarreAxes
 except ImportError:
@@ -91,7 +94,7 @@ def set_initial_values(self):
         for dataset in self.datasets.values():
             t0_, t1_ = dataset.period
             t0, t1 = min(t0, t0_), max(t1, t1_)
-
+        logger.debug("period detected %f -> %f", t0, t1)
         self.settings = dict(period=(t0, t1), now=t1)
 
     @property

src/py_eddy_tracker/observations/observation.py

@@ -1046,6 +1046,9 @@ def compare_units(input_unit, output_unit, name):
                     input_unit,
                     output_unit,
                 )
+            return factor
+        else:
+            return 1
 
     @classmethod
     def from_zarr(cls, handler):