Simple:
my_str = "abcdefghij"
my_str = my_str[:-1]
Try the following code snippet to better understand how it works by casting the string as a list:
str1 = "abcdefghij"
list1 = list(str1)
print(list1)
list2 = list1[:-1]
print(list2)
In case, you want to accept the string from the user:
str1 = input("Enter :")
list1 = list(str1)
print(list1)
list2 = list1[:-1]
print(list2)
To make it take away the last word from a sentence (with words separated by whitespace like space):
str1 = input("Enter :")
list1 = str1.split()
print(list1)
list2 = list1[:-1]
print(list2)
Simple:
my_str = "abcdefghij"
my_str = my_str[:-1]
Try the following code snippet to better understand how it works by casting the string as a list:
str1 = "abcdefghij"
list1 = list(str1)
print(list1)
list2 = list1[:-1]
print(list2)
In case, you want to accept the string from the user:
str1 = input("Enter :")
list1 = list(str1)
print(list1)
list2 = list1[:-1]
print(list2)
To make it take away the last word from a sentence (with words separated by whitespace like space):
str1 = input("Enter :")
list1 = str1.split()
print(list1)
list2 = list1[:-1]
print(list2)
What you are trying to do is an extension of string slicing in Python:
Say all strings are of length 10, last char to be removed:
>>> st[:9]
'abcdefghi'
To remove last N characters:
>>> N = 3
>>> st[:-N]
'abcdefg'
Videos
Like this:
>>> mystr = "abcdefghijkl"
>>> mystr[-4:]
'ijkl'
This slices the string's last 4 characters. The -4 starts the range from the string's end. A modified expression with [:-4] removes the same 4 characters from the end of the string:
>>> mystr[:-4]
'abcdefgh'
For more information on slicing see this Stack Overflow answer.
str = "aaaaabbbb"
newstr = str[-4:]
See : http://codepad.org/S3zjnKoD
If you just want to delete the second last character, your can do like this,
s = "[2,3,1,1,]"
s[:-2] + s[-1]
# '[2,3,1,1]'
s[:-2] -> Will slice the string from 0 to -2 index location (without -2 index)
s[-1] -> Will fetch the last element
s[:-2] + s[-1] -> concatenation of the strigs
If you're sure you have that string, slice both characters and add the ] back on!
source_string = "[2,3,1,1,]"
if source_string.endswith(",]"):
source_string = source_string[:-2] + "]"
However, often lists stored as strings are not very useful - you may really want to convert the whole thing to a collection of numbers (perhaps manually removing the "[]" and splitting by ,, or using ast.literal_eval()), potentially converting it back to a string to display later
>>> source_string = "[2,3,1,1,]"
>>> import ast
>>> my_list = ast.literal_eval(source_string)
>>> my_list
[2, 3, 1, 1]
>>> str(my_list)
'[2, 3, 1, 1]'
target=url.split("/")[-1]
split methode returns a list of words separated by the separator specified in the argument and [-1] is for the last element of that list
You can use the rsplit() functionality.
Syntax: string.rsplit(separator, maxsplit)
Reference https://www.w3schools.com/python/ref_string_rsplit.asp
rsplit() splits the string from the right using the delimiter/separator and using maxsplit you can split only once with some performance benefit as compared to split() as you dont need to split more than once.
>>>> url='https://google.uk/images/kfakp3ok2'
>>>>
>>>> url.rsplit('/', 1)[-1]
'kfakp3ok2'
>>>>