sentence = 'Python programming is fun.'
result = sentence.index('is fun')
print("Substring 'is fun':", result)
result = sentence.index('Java')
print("Substring 'Java':", result)myStr = "py py py py"
print(myStr.find("js"))
print(myStr.index("js"))
myStr = "py py py py"
print(myStr.find("js"))
print(myStr.index("js"))
## OUTPUT:
-1
Traceback (most recent call last):
File "D:\Programming\python\article\find.py", line 38, in <module>
print(myStr.index("js"))
ValueError: substring not found
myStr = "py py py py"
print(myStr.find("js"))
print(myStr.index("js"))
myStr = "py py py py"
print(myStr.find("js"))
print(myStr.index("js"))