How can I split characters after replacing Python strings?

Python string replacement requires constant learning. Only continuous learning can be used better. Next, let's take a look at how to replace the Python string in actual use. This will help you in future use.

Python string replacement

Replace all matched substrings. Replace all substrings in the subject that match the regular expression regex with newstring

 
 

  
  
Result, number = re. subn (regex, newstring, subject)
  
  
Replace all matched substrings with regular expression objects)
  
  
Rereobj = re. compile (regex)
  
  
Result, number = reobj. subn (newstring, subject) string split
 
 

String splitting

 
 

  
  
Reresult = re. split (regex, subject)
  
  
String sharding uses regular expression objects)
  
  
Rereobj = re. compile (regex)
  
  
Result = reobj. split (subject) Match
 
 

The following lists the matching usage of Python Regular Expressions:

Test whether the regular expression matches all or part of a string.
 

 
 

  
  
Regex = ur "..." # Regular Expression
  
  
If re. search (regex, subject ):
  
  
Do_something ()
  
  
Else:
  
  
Do_anotherthing ()
 
 

Test whether the regular expression matches the entire string.

 
 

  
  
Regex = ur "... \ Z" # The regular expression ends with \ Z.
  
  
If re. match (regex, subject ):
  
  
Do_something ()
  
  
Else:
  
  
Do_anotherthing ()
 
 

Create a matching object and obtain matching details through the object.

 
 

  
  
Regex = ur "..." # Regular Expression
  
  
Match = re. search (regex, subject)
  
  
If match:
  
  
# Match start: match. start ()
  
  
# Match end (exclusive): match. end ()
  
  
# Matched text: match. group ()
  
  
Do_something ()
  
  
Else:
  
  
Do_anotherthing ()
 
 

The above describes how to replace Python strings.