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COMPAT: make numpy NaT comparison use a view to avoid implicit conversions #7617

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Merged
merged 1 commit into from
Jun 30, 2014
Merged

COMPAT: make numpy NaT comparison use a view to avoid implicit conversions #7617

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6 changes: 3 additions & 3 deletions pandas/tslib.pyx
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Original file line number Diff line number Diff line change
Expand Up @@ -892,7 +892,7 @@ cdef convert_to_tsobject(object ts, object tz, object unit):
if ts is None or ts is NaT or ts is np_NaT:
obj.value = NPY_NAT
elif is_datetime64_object(ts):
if ts == np_NaT:
if ts.view('i8') == iNaT:
obj.value = NPY_NAT
else:
obj.value = _get_datetime64_nanos(ts)
Expand Down Expand Up @@ -1222,7 +1222,7 @@ def array_to_datetime(ndarray[object] values, raise_=False, dayfirst=False,
continue
raise
elif util.is_datetime64_object(val):
if val == np_NaT or val.view('i8') == iNaT:
if val is np_NaT or val.view('i8') == iNaT:
iresult[i] = iNaT
else:
try:
Expand Down Expand Up @@ -1303,7 +1303,7 @@ def array_to_datetime(ndarray[object] values, raise_=False, dayfirst=False,
if _checknull_with_nat(val):
oresult[i] = np.nan
elif util.is_datetime64_object(val):
if val == np_NaT:
if val is np_NaT or val.view('i8') == iNaT:
oresult[i] = np.nan
else:
oresult[i] = val.item()
Expand Down