Excel wont recognize date using openpyxl

问题

I have a piece of code that converts a unix date to standard U.S. date format. It displays properly in excel, however excel doesn't recognize it as a date.

if str(startdate).isdigit():
    startdate = int(startdate)
    date = datetime.datetime.fromtimestamp(int(startdate)).strftime('%m/%d/%Y')
    ws4.cell(row=cell.row,column=2).value = date
    ws4.cell(row=cell.row,column=2).number_format = 'MM DD YYYY'

Any idea how to get excel to see this as a date rather than text?

回答1:

My mistake was assuming the line below created a date.

date = datetime.datetime.fromtimestamp(int(startdate)).strftime('%m/%d/%Y')

After venturing into the docs (Scary as hell for a noob. Does it get easier?) I realized .strftime('%m/%d/%Y') created a string not a date.

I converted that string to a date using:

date = datetime.datetime.strptime(date, '%m/%d/%Y').date()

Now excel recognizes it as a date.

Hopefully this helps someone in the future.

来源：https://stackoverflow.com/questions/43947652/excel-wont-recognize-date-using-openpyxl