FIX: detrend not bool

doc/whats_new.rst

@@ -91,6 +91,8 @@ BUG
 
     - Fixed the import of EDF files with encoding characters in :func:`mne.io.read_raw_edf` by `Guillaume Dumas`_
 
+    - Fixed :class:`mne.Epochs` to ensure that detrend parameter is not a boolean by `Jean-Remi King`_
+
 API
 ~~~
 

mne/epochs.py

@@ -236,7 +236,7 @@ def __init__(self, info, data, events, event_id=None, tmin=-0.2, tmax=0.5,
         if (reject_tmin is not None) and (reject_tmax is not None):
             if reject_tmin >= reject_tmax:
                 raise ValueError('reject_tmin needs to be < reject_tmax')
-        if detrend not in [None, 0, 1]:
+        if (detrend not in [None, 0, 1]) or isinstance(detrend, bool):
             raise ValueError('detrend must be None, 0, or 1')
 
         # check that baseline is in available data

mne/tests/test_epochs.py

@@ -1235,8 +1235,9 @@ def test_detrend():
         # There are non-M/EEG channels that should not be equal:
         assert_true(not np.allclose(a, b))
 
-    assert_raises(ValueError, Epochs, raw, events[:4], event_id, tmin, tmax,
-                  detrend=2)
+    for value in ['foo', 2, False, True]:
+        assert_raises(ValueError, Epochs, raw, events[:4], event_id,
+                      tmin, tmax, detrend=value)
 
 
 def test_bootstrap():