Skip to content

GH9570 allow timedelta string conversion without leading zero #9868

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
jreback merged 1 commit into from
Apr 13, 2015
+12 −4
Merged

GH9570 allow timedelta string conversion without leading zero #9868

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 2 additions & 0 deletions doc/source/whatsnew/v0.16.1.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -50,6 +50,8 @@ Enhancements
- Allow conversion of values with dtype ``datetime64`` or ``timedelta64`` to strings using ``astype(str)`` (:issue:`9757`)
- ``get_dummies`` function now accepts ``sparse`` keyword. If set to ``True``, the return ``DataFrame`` is sparse, e.g. ``SparseDataFrame``. (:issue:`8823`)

- Allow timedelta string conversion when leading zero is missing from time definition, ie `0:00:00` vs `00:00:00`. (:issue:`9570`)

.. _whatsnew_0161.api:

API changes
Expand Down
7 changes: 7 additions & 0 deletions pandas/tseries/tests/test_timedeltas.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -64,6 +64,13 @@ def test_construction(self):
self.assertEqual(Timedelta(123072001000000).value, 123072001000000)
self.assertTrue('1 days 10:11:12.001' in str(Timedelta(123072001000000)))

# string conversion with/without leading zero
# GH 9570
self.assertEqual(Timedelta('0:00:00'), timedelta(hours=0))
self.assertEqual(Timedelta('00:00:00'), timedelta(hours=0))
self.assertEqual(Timedelta('-1:00:00'), -timedelta(hours=1))
self.assertEqual(Timedelta('-01:00:00'), -timedelta(hours=1))

# more strings
# GH 8190
self.assertEqual(Timedelta('1 h'), timedelta(hours=1))
Expand Down
7 changes: 3 additions & 4 deletions pandas/tseries/timedeltas.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -119,7 +119,7 @@ def _validate_timedelta_unit(arg):
_short_search = re.compile(
"^\s*(?P<neg>-?)\s*(?P<value>\d*\.?\d*)\s*(?P<unit>d|s|ms|us|ns)?\s*$",re.IGNORECASE)
_full_search = re.compile(
"^\s*(?P<neg>-?)\s*(?P<days>\d*\.?\d*)?\s*(days|d|day)?,?\s*\+?(?P<time>\d{2}:\d{2}:\d{2})?(?P<frac>\.\d+)?\s*$",re.IGNORECASE)
"^\s*(?P<neg>-?)\s*(?P<days>\d*?\.?\d*?)?\s*(days|d|day)?,?\s*\+?(?P<time>\d{1,2}:\d{2}:\d{2})?(?P<frac>\.\d+)?\s*$",re.IGNORECASE)
_nat_search = re.compile(
"^\s*(nat|nan)\s*$",re.IGNORECASE)
_whitespace = re.compile('^\s*$')
Expand Down Expand Up @@ -209,13 +209,12 @@ def convert(r=None, unit=None, m=m):
is_neg = gd['neg']
if gd['days']:
days = int((float(gd['days'] or 0) * 86400)*1e9)
if gd['neg']:
if is_neg:
days *= -1
value += days
else:
if gd['neg']:
if is_neg:
value *= -1

return tslib.cast_from_unit(value, 'ns')
return convert

Expand Down