re match python

1import re
2#	Compile a regular expression pattern into a regular expression object, which can be used for matching using its match(), search() and other methods, described below.
3
4prog = re.compile(pattern)
5result = prog.match(string)
6
7#	is equivalent to
8
9result = re.match(pattern, string)

1import re
2line = re.sub(r"</?\[\d+>", "", line)
3
4# Comented version
5line = re.sub(r"""
6  (?x) # Use free-spacing mode.
7  <    # Match a literal '<'
8  /?   # Optionally match a '/'
9  \[   # Match a literal '['
10  \d+  # Match one or more digits
11  >    # Match a literal '>'
12  """, "", line)
13

1import re
2
3# The string you want to find a pattern within
4test_string = 'Hello greppers!'
5
6# Creating a regular expression pattern
7# This is a simple one which finds "Hello"
8pattern = re.compile(r'Hello')
9
10# This locates and returns all the occurences of the pattern
11# within the test_string
12match = pattern.finditer(test_string)
13
14# Outputs all the ocurrences which were returned as 
15# as match objects
16for match in matches:
17  print(match)
18
19

1import re
2pattern = re.compile('[a-zA-Z ]+')		# a...z A...Z and space allowed
3message = "Weather is nice"
4if pattern.match(message).group() == message:
5    print("match")
6else:
7    print("no match")

1import re
2
3pattern = '^a...s$'
4test_string = 'abyss'
5result = re.match(pattern, test_string)
6
7if result:
8  print("Search successful.")
9else:
10  print("Search unsuccessful.")	
11

1import re
2xx = "guru99,education11 is fun"
3r1 = re.findall(r"^\w+",xx)
4print(r1)