String Function To Strip The Last Comma

Input str = 'test1,test2,test3,' Ouput str = 'test1,test2,test3' Requirement to strip the last occurence of ','

Solution 1:

Just use rstrip().

result = your_string.rstrip(',')

Solution 2:

str = 'test1,test2,test3,'
str[:-1] # 'test1,test2,test3'

Solution 3:

The question is very old but tries to give the better answer

str = 'test1,test2,test3,'

It will check the last character, if the last character is a comma it will remove otherwise will return the original string.

result = str[:-1] if str[-1]==',' else str

Solution 4:

str = 'test1,test2,test3,'

The comma is the last character in the string which is represented by the index -1 or str[-1].

Therefore to remove the last character, you need you string to be in the range of str[:-2] where the the solution will be:

 str = 'test1,test2,test3'

But since strings are immutable, you may want to assign the new variable with no trailing comma to a new variable.

anotherStr = 'test1,test2,test3'

Solution 5:

Though it is little bit over work for something like that. I think this statement will help you.

str = 'test1,test2,test3,'    
result = ','.join([s for s in str.split(',') if s]) # 'test1,test2,test3'