pd.DataFrame([pd.Timestamp('2018')]) + pd.Timedelta('1d') # Traceback (most recent call last): # File "/usr/local/lib/python3.6/site-packages/pandas/core/internals.py", line 1355, in eval # transf(values), other) # File "/usr/local/lib/python3.6/site-packages/pandas/core/internals.py", line 2723, in _try_coerce_args # raise TypeError # TypeError # During handling of the above exception, another exception occurred: # Traceback (most recent call last): # File "/usr/local/lib/python3.6/site-packages/pandas/core/ops.py", line 1497, in na_op # result = expressions.evaluate(op, str_rep, x, y, **eval_kwargs) # File "/usr/local/lib/python3.6/site-packages/pandas/core/computation/expressions.py", line 205, in evaluate # return _evaluate(op, op_str, a, b, **eval_kwargs) # File "/usr/local/lib/python3.6/site-packages/pandas/core/computation/expressions.py", line 65, in _evaluate_standard # return op(a, b) # TypeError: unsupported operand type(s) for +: 'numpy.ndarray' and 'Timedelta' # During handling of the above exception, another exception occurred: # Traceback (most recent call last): # File "/usr/local/lib/python3.6/site-packages/pandas/core/internals.py", line 1415, in eval # result = get_result(other) # File "/usr/local/lib/python3.6/site-packages/pandas/core/internals.py", line 1383, in get_result # result = func(values, other) # File "/usr/local/lib/python3.6/site-packages/pandas/core/ops.py", line 1525, in na_op # result[mask] = op(xrav, y) # TypeError: unsupported operand type(s) for +: 'numpy.ndarray' and 'Timedelta' # During handling of the above exception, another exception occurred: # Traceback (most recent call last): # File "<stdin>", line 1, in <module> # File "/usr/local/lib/python3.6/site-packages/pandas/core/ops.py", line 1559, in f # return self._combine_const(other, na_op, try_cast=True) # File "/usr/local/lib/python3.6/site-packages/pandas/core/frame.py", line 4779, in _combine_const # try_cast=try_cast) # File "/usr/local/lib/python3.6/site-packages/pandas/core/internals.py", line 3687, in eval # return self.apply('eval', **kwargs) # File "/usr/local/lib/python3.6/site-packages/pandas/core/internals.py", line 3581, in apply # applied = getattr(b, f)(**kwargs) # File "/usr/local/lib/python3.6/site-packages/pandas/core/internals.py", line 1360, in eval # try_cast=try_cast, mgr=mgr) # File "/usr/local/lib/python3.6/site-packages/pandas/core/internals.py", line 1422, in eval # result = handle_error() # File "/usr/local/lib/python3.6/site-packages/pandas/core/internals.py", line 1405, in handle_error # '{detail!s}'.format(other=other, detail=detail)) # noqa # TypeError: Could not operate Timedelta('1 days 00:00:00') with block values unsupported operand type(s) for +: 'numpy.ndarray' and 'Timedelta'