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Empty table and maxheadercolwidths #383

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Empty table and maxheadercolwidths #383

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5 changes: 4 additions & 1 deletion tabulate/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2262,7 +2262,10 @@ def tabulate(
)

if maxheadercolwidths is not None:
num_cols = len(list_of_lists[0])
if len(list_of_lists):
num_cols = len(list_of_lists[0])
else:
num_cols = 0
if isinstance(maxheadercolwidths, int): # Expand scalar for all columns
maxheadercolwidths = _expand_iterable(
maxheadercolwidths, num_cols, maxheadercolwidths
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6 changes: 6 additions & 0 deletions test/test_regression.py
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Original file line number Diff line number Diff line change
Expand Up @@ -515,6 +515,12 @@ def test_exception_on_empty_data_with_maxcolwidths():
assert_equal(result, "")


def test_exception_on_empty_data_with_maxheadercolwidths():
"Regression: exception on empty data when using maxheadercolwidths (github issue #365)"
result = tabulate([], maxheadercolwidths=5)
assert_equal(result, "")


def test_numpy_int64_as_integer():
"Regression: format numpy.int64 as integer (github issue #18)"
try:
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