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Neha Kumawat
5 months ago
text = 'Python Forensics - indexing'
result = text.index('in')
print("Keyword found at",result)
Keyword found at 19
str.index(sub, start, end)
str1= 'Python is a popular programming language'
res = str1.index('is a')
print("Substring 'is a':", res)
res = str1.index('C++')
print("Substring 'C++':", res)
Substring 'is a': 7
Traceback (most recent call last):
File "main.py", line 5, in <module>
res = str1.index('C++')
ValueError: substring not found
ValueError: substring not found
str1= 'Python is a popular programming language'
# Substring is searched in 'a popular programming language'
print(str1.index('ing', 10))
# Substring is searched in 'a popular programming lang '
print(str1.index('g lan', 10, -4))
# Substring is searched in 'programming'
print(str1.index('is', 19, 30))
28
30
Traceback (most recent call last):
File "main.py", line 10, in <module>
print(str1.index('is', 19, 30))
ValueError: substring not found
List1 = [999, 'number', 'name', 'pointing'];
print("Index for number: ", List1.index('number'))
print("Index for pointing: ", List1.index('pointing'))
str1 = "integer is a number data type"
str2 = "number";
print ("Index of the keyword found at ", str1.index(str2))
Index for number: 1
Index for pointing: 3
Index of the keyword found at 13