In [1]:

    

import re


    

In [2]:

    

p = re.compile('[a-z]+')
print(p.fullmatch('abc'))


    

    




<re.Match object; span=(0, 3), match='abc'>

In [3]:

    

print(p.fullmatch('abc123'))


    

    




None

In [4]:

    

s = 'abc'

if p.fullmatch(s):
    print('match')
else:
    print('no match')


    

    




match

In [5]:

    

s = 'abc123'

if p.fullmatch(s):
    print('match')
else:
    print('no match')


    

    




no match

In [6]:

    

p = re.compile('[a-z]+$')
print(p.match('abc'))


    

    




<re.Match object; span=(0, 3), match='abc'>

In [7]:

    

print(p.match('abc123'))


    

    




None

In [8]:

    

p = re.compile('[a-z]+')
print(p.search('123abcABC'))


    

    




<re.Match object; span=(3, 6), match='abc'>

In [9]:

    

print(p.search('123ABC'))


    

    




None

In [10]:

    

p = re.compile('[a-z]+')
result = p.findall('123abcABCxyz')
print(result)


    

    




['abc', 'xyz']

In [11]:

    

print(type(result))


    

    




<class 'list'>

In [12]:

    

print(type(result[0]))


    

    




<class 'str'>

In [13]:

    

print(p.findall('123ABC'))


    

    




[]

In [14]:

    

s_result = ''.join(p.findall('123abcABCxyz'))
print(s_result)


    

    




abcxyz

In [15]:

    

print(len(s_result))


    

    




6

In [16]:

    

print(len('🇯🇵'))


    

    




2