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BUG: invalid rolling window on empty input #21291

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Merged
merged 14 commits into from
Jun 8, 2018
Merged

BUG: invalid rolling window on empty input #21291

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efd03f9
Referring to Issue #21286
uds5501 Jun 2, 2018
6a5a26c
white spaces fixed
uds5501 Jun 2, 2018
70e76df
Update window.py
uds5501 Jun 7, 2018
2cd9b5c
Update test_window.py
uds5501 Jun 7, 2018
87b2417
Update window.py
uds5501 Jun 8, 2018
0349bf0
Update test_window.py
uds5501 Jun 8, 2018
5aacfbb
Update test_window.py
uds5501 Jun 8, 2018
4131f30
Update window.py
uds5501 Jun 8, 2018
956a7f2
Update window.py
uds5501 Jun 8, 2018
a69e0e0
Update window.py
uds5501 Jun 8, 2018
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uds5501 Jun 8, 2018
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Update v0.23.1.txt
uds5501 Jun 8, 2018
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Update v0.23.1.txt
uds5501 Jun 8, 2018
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Update v0.23.1.txt
uds5501 Jun 8, 2018
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4 changes: 4 additions & 0 deletions pandas/core/window.py
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Original file line number Diff line number Diff line change
Expand Up @@ -96,6 +96,8 @@ def is_freq_type(self):
return self.win_type == 'freq'

def validate(self):
if self.window == 0:
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As @mroeschke pointed out can't you combine this with the check below? Don't think we need this

raise ValueError("Please Enter a window other than 0")
if self.center is not None and not is_bool(self.center):
raise ValueError("center must be a boolean")
if self.min_periods is not None and not \
Expand Down Expand Up @@ -602,6 +604,8 @@ def validate(self):
if isinstance(window, (list, tuple, np.ndarray)):
pass
elif is_integer(window):
if window == 0:
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Instead, you can combine this check with the one below (i.e window <= 0) and then raise an appropriate error message

raise ValueError("window must not be zero")
if window < 0:
raise ValueError("window must be non-negative")
try:
Expand Down