ValueError: time data 'None' does not match format '%Y-%m-%dT%H:%M:%S.%f'

[rajesh3383]

@Larz60+ Sorry for not placing the complete error, Please find below

Error:
runfile('C:/Users/relangovan/Desktop/Project_Document/XML/untitled44.py', wdir='C:/Users/relangovan/Desktop/Project_Document/XML')
Traceback (most recent call last):

  File "C:\Users\relangovan\Desktop\Project_Document\XML\untitled44.py", line 26, in <module>
    previous_update = datetime.strptime(Date, "%Y-%m-%dT%H:%M:%S.%f")

  File "C:\Users\relangovan\Anaconda3\lib\_strptime.py", line 568, in _strptime_datetime
    tt, fraction, gmtoff_fraction = _strptime(data_string, format)

  File "C:\Users\relangovan\Anaconda3\lib\_strptime.py", line 349, in _strptime
    raise ValueError("time data %r does not match format %r" %

ValueError: time data 'None' does not match format '%Y-%m-%dT%H:%M:%S.%f'