In [1]:

    

import datetime


    

In [2]:

    

s = '2018-12-31'


    

In [3]:

    

d = datetime.date.fromisoformat(s)


    

In [4]:

    

print(d)


    

    




2018-12-31

In [5]:

    

print(type(d))


    

    




<class 'datetime.date'>

In [6]:

    

# print(datetime.date.fromisoformat('2018-12'))
# ValueError: Invalid isoformat string: '2018-12'


    

In [7]:

    

print(datetime.date.fromisoformat('2018-01-01'))


    

    




2018-01-01

In [8]:

    

# print(datetime.date.fromisoformat('2018-1-1'))
# ValueError: Invalid isoformat string: '2018-1-1'


    

In [9]:

    

s = '05:00:30.001000'


    

In [10]:

    

t = datetime.time.fromisoformat(s)


    

In [11]:

    

print(t)


    

    




05:00:30.001000

In [12]:

    

print(type(t))


    

    




<class 'datetime.time'>

In [13]:

    

print(datetime.time.fromisoformat('05'))


    

    




05:00:00

In [14]:

    

# print(datetime.time.fromisoformat('5:00:30'))
# ValueError: Invalid isoformat string: '5:00:30'


    

In [15]:

    

s = '2018-12-31T05:00:30.001000'


    

In [16]:

    

dt = datetime.datetime.fromisoformat(s)


    

In [17]:

    

print(dt)


    

    




2018-12-31 05:00:30.001000

In [18]:

    

print(type(dt))


    

    




<class 'datetime.datetime'>

In [19]:

    

print(datetime.datetime.fromisoformat('2018-12-31x05:00:30.001000'))


    

    




2018-12-31 05:00:30.001000

In [20]:

    

# print(datetime.datetime.fromisoformat('2018-12-31xx05:00:30.001000'))
# ValueError: Invalid isoformat string: '2018-12-31xx05:00:30.001000'


    

In [21]:

    

print(datetime.datetime.fromisoformat('2018-12-31T05'))


    

    




2018-12-31 05:00:00

In [22]:

    

print(datetime.datetime.fromisoformat('2018-12-31'))


    

    




2018-12-31 00:00:00

In [23]:

    

# print(datetime.datetime.fromisoformat('2018-12-31T5:00'))
# ValueError: Invalid isoformat string: '2018-12-31T5:00'


    

In [24]:

    

s = '2018-12-31T05:00:30.001000'


    

In [25]:

    

# print(datetime.date.fromisoformat(s))
# ValueError: Invalid isoformat string: '2018-12-31T05:00:30.001000'


    

In [26]:

    

# print(datetime.time.fromisoformat(s))
# ValueError: Invalid isoformat string: '2018-12-31T05:00:30.001000'


    

In [27]:

    

d = datetime.datetime.fromisoformat(s).date()


    

In [28]:

    

print(d)


    

    




2018-12-31

In [29]:

    

print(type(d))


    

    




<class 'datetime.date'>

In [30]:

    

t = datetime.datetime.fromisoformat(s).time()


    

In [31]:

    

print(t)


    

    




05:00:30.001000

In [32]:

    

print(type(t))


    

    




<class 'datetime.time'>

In [33]:

    

s = '2018-12-31T05:00:30'


    

In [34]:

    

s_basic = s.replace('-', '').replace(':', '')


    

In [35]:

    

print(s_basic)


    

    




20181231T050030

In [36]:

    

s = '2018-12-31T05:00:30.001000'


    

In [37]:

    

s_basic = s.split('.')[0].replace('-', '').replace(':', '')


    

In [38]:

    

print(s_basic)


    

    




20181231T050030

In [39]:

    

s_ex = datetime.datetime.strptime(s_basic, '%Y%m%dT%H%M%S').isoformat()


    

In [40]:

    

print(s_ex)


    

    




2018-12-31T05:00:30