Change date format of pandas column (month-day-year to day-month-year)

Question

Got the following issue.

I have an column in my pandas with some dates and some empty values.

Example:

    1 - 3-20-2019
    2 - 
    3 - 2-25-2         


        

Answer 1

Not sure if this is the fastest way to get it done. Anyway,

df = pd.DataFrame({'Date': {0: '3-20-2019', 1:"", 2:"2-25-2019"}}) #your dataframe
df['Date'] = pd.to_datetime(df.Date) #convert to datetime format
df['Date'] = [d.strftime('%d-%m-%Y') if not pd.isnull(d) else '' for d in df['Date']]

Output:

         Date
0  20-03-2019
1            
2  25-02-2019