How to change the datetime format in Pandas

My dataframe has a DOB column (example format 1/1/2016) which by default gets converted to Pandas dtype ‘object’. Converting this to date format with df[‘DOB’] = pd.to_datetime(df[‘DOB’]), the date gets converted to: 2016-01-26 and its dtype is: datetime64[ns]. Now I want to convert this date format to 01/26/2016 or any other general date format. How … Read more

Integer.valueOf() vs. Integer.parseInt() [duplicate]

This question already has answers here: Different between parseInt() and valueOf() in java? (11 answers) Closed 4 years ago. Aside from Integer.parseInt() handling the minus sign (as documented), are there any other differences between Integer.valueOf() and Integer.parseInt()? And since neither can parse , as a decimal thousands separator (produces NumberFormatException), is there an already available … Read more

?? Coalesce for empty string?

Something I find myself doing more and more is checking a string for empty (as in “” or null) and a conditional operator. A current example: s.SiteNumber.IsNullOrEmpty() ? “No Number” : s.SiteNumber; This is just an extension method, it’s equivalent to: string.IsNullOrEmpty(s.SiteNumber) ? “No Number” : s.SiteNumber; Since it’s empty and not null, ?? won’t … Read more

Using multiple arguments for string formatting in Python (e.g., ‘%s … %s’)

I have a string that looks like ‘%s in %s’ and I want to know how to seperate the arguments so that they are two different %s. My mind coming from Java came up with this: ‘%s in %s’ % unicode(, unicode(self.publication) But this doesn’t work so how does it look in Python? 8 Answers … Read more