Dick Eshelman Dick Eshelman - 4 months ago 17
Python Question

In Pandas how do I convert a string of date strings to datetime objects and put them in a DataFrame?

import pandas as pd
date_stngs = ('2008-12-20','2008-12-21','2008-12-22','2008-12-23')

a = pd.Series(range(4),index = (range(4)))

for idx, date in enumerate(date_stngs):
a[idx]= pd.to_datetime(date)


This code bit produces error:


TypeError:" 'int' object is not iterable"


Can anyone tell me how to get this series of date time strings into a DataFrame as
DateTime
objects?

Answer
>>> import pandas as pd
>>> date_stngs = ('2008-12-20','2008-12-21','2008-12-22','2008-12-23')
>>> a = pd.Series([pd.to_datetime(date) for date in date_stngs])
>>> a
0    2008-12-20 00:00:00
1    2008-12-21 00:00:00
2    2008-12-22 00:00:00
3    2008-12-23 00:00:00

UPDATE

Use pandas.to_datetime(pd.Series(..)). It's concise and much faster than above code.

>>> pd.to_datetime(pd.Series(date_stngs))
0   2008-12-20 00:00:00
1   2008-12-21 00:00:00
2   2008-12-22 00:00:00
3   2008-12-23 00:00:00