How to extract a substring from a string in Python?

In Python, the syntax string[i:j] is used to extract characters or substring between indexes i (include) and j (exclude). Note that the first character of the string is at index 0.

substring = string[i:j]

Here are some examples:

string = "AnsWiki"

# Affiche : Wi
print ( string[3:5] )

# Displays: Wiki
print ( string[3:7] )

# Displays: AnsWiki
print ( string[0:7] )

# Displays: Ans
print ( string[0:-4] )

# Displays: Wi
print ( string[-4:-2] )

Test this example online on repl.it.