How to format cell with datetime object of the form 'yyyy-mm-dd hh:mm:ss' in Excel using openpyxl

Question

So, given:

dttm = datetime.datetime.strptime(\"2014-06-23 13:56:30\", \"%Y-%m-%d %H:%M:%S\")
ws[\'A1\'] = dttm

The result in excel is that

Answer 1

I'm adding this as a new answer since I don't have enough reputation to add a comment to the above. The simplest way to format a cell is using .number_format = "format" as in:

value = datetime.datetime.strptime("2014-06-23 13:56:30", "%Y-%m-%d %H:%M:%S")
cell = ws['A1']
cell.value = value
cell.number_format = 'YYYY MMM DD'

This is tested in openpyxl (2.2.2)