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MAINT: Ensure at least one filter was passed to bundle clean

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This commit is contained in:
Richard Frank 2020-09-02 20:21:44 -04:00
parent 797b8e2e74
commit b2640da656
1 changed files with 6 additions and 2 deletions
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8
zipline/data/bundles/core.py
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@ -182,8 +182,9 @@ class BadClean(click.ClickException, ValueError):
"""
def __init__(self, before, after, keep_last):
super(BadClean, self).__init__(
'Cannot pass a combination of `before` and `after` with'
'`keep_last`. Got: before=%r, after=%r, keep_n=%r\n' % (
'Cannot pass a combination of `before` and `after` with '
'`keep_last`. Must pass one. '
'Got: before=%r, after=%r, keep_last=%r\n' % (
before,
after,
keep_last,
@ -578,6 +579,9 @@ def _make_bundle_core():
if e.errno != errno.ENOENT:
raise
raise UnknownBundle(name)
if before is after is keep_last is None:
raise BadClean(before, after, keep_last)
if ((before is not None or after is not None) and
keep_last is not None):
raise BadClean(before, after, keep_last)