Regex in python

Python regex

import re

# Regex Cheat sheet : https://www.dataquest.io/blog/regex-cheatsheet/
# Regex python tester : https://pythex.org/
# re doc : https://docs.python.org/3/library/re.html

text = "i like train" 
reg = r"[a-c]" #the group of char a to c

if re.match(reg, text): #Check if regex is correct
	print(text)
else:
  print("Not any match")

Re python3

import re
>>> m = re.search('(?<=abc)def', 'abcdef')
>>> m.group(0)
'def'

Source: docs.python.org

Regex in python

import re

text = "test1, test2, test3"
regex = re.compile(r"test1")

# Returns range of first match
print(regex.match(text).span())

# Returns text with all matches replaces with other text
print(regex.sub("replace", text))

# Returns every match
print(regex.findall(text))

# OUT:
#
# (0, 5)
# replace, replace, replace
# ['test1', 'test2', 'test3']

How to learn regex pyton

re.search(r'cake$', "Cake! Let's eat cake").group()

## The next search will return the NONE value, try it:
re.search(r'cake$', "Let's get some cake on our way home!").group()

Source: datacamp.com

Similar codes

1 vote169 views2 answers
Django class based views
Python
-1 vote211 views3 answers
Raw sql query to django converter
Python Django
0 vote255 views1 answer
How to export schema in graphene django
Python Django
0 vote187 views1 answer
Numpy multidimensional indexing
Python
21 votes181 views2 answers
How to update python
Python
0 vote259 views1 answer
How to write to a netcdf file using xarray
Python
2 votes142 views2 answers
Iterate in pandas dataframe
Python
3 votes208 views1 answer
Python get output of command to variable
Python
21 votes182 views3 answers
Skip rows in pandas read excel
Python
3 votes170 views2 answers
Adjust tick label size matplotlib
Python