text_val = 'life is short, I use python, what about you'

print(text_val == 'life')

print(text_val.startswith('life'))

print(text_val.endswith('what'))

print(text_val.find('python'))

date_text_1 = '04/20/2020'

date_text_2 = 'April 20, 2020'

import re

if re.match(r'\d+/\d+/\d+', date_text_1):

print('yes,the date type is match')

else:

print('no,it is not match')

if re.match(r'\d+/\d+/\d+', date_text_2):

print('yes,it match')

else:

print('no,not match')

date_pat = re.compile(r'\d+/\d+/\d+')

if date_pat.match(date_text_1):

print('yes,the date type is match')

else:

print('no,it is not match')

if date_pat.match(date_text_2):

print('yes,it match')

else:

print('no,not match')

date_text = 'Today is 11/27/2012. PyCon starts 3/13/2013.'

print(date_pat.findall(date_text))

date_pat_1 = re.compile(r'(\d+)/(\d+)/(\d+)')

group_result = date_pat_1.match('04/20/2020')

print(f'group result is:{group_result}')

print(f'group 0 is:{group_result.group(0)}')

print(f'group 1 is:{group_result.group(1)}')

print(f'group 2 is:{group_result.group(2)}')

print(f'group 3 is:{group_result.group(3)}')

print(f'groups is:{group_result.groups()}')

month, date, year = group_result.groups()

print(f'month is {month}, date is {date}, year is {year}')

print(date_pat_1.findall(date_text))

for month, day, year in date_pat_1.findall(date_text):

print(f'{year}-{month}-{day}')

for m_val in date_pat_1.finditer(date_text):

print(m_val.groups())

group_result = date_pat_1.match('04/20/2020abcdef')

print(group_result)

print(group_result.group())

date_pat_2 = re.compile(r'(\d+)/(\d+)/(\d+)$')

print(date_pat_2.match('04/20/2020abcdef'))

print(date_pat_2.match('04/20/2020'))

print(re.findall(r'(\d+)/(\d+)/(\d+)', date_text))