count() : Count occurrence of sub string inside main string with optional start and end position

count()

my_str.count(search_string,start,end))

search_string : String to be searched for matching inside main string.
start: Optional , search can be started from this position
end : Optional , search can be ended just before this position.

my_str="Welcome to plus2net.com"
print(my_str.count('co'))      # Output is 2
print(my_str.count('co',4))    # Output is 1 
print(my_str.count('co',4,18)) # Output is 0
print(my_str.count('o',4,9))   # Output is 1
print(my_str.count('o',4,10))  # Output is 2

Note : In last line in above code the char o is at 4^th and 94^th position.

Using a list

my_list=['one','two','three']
print(my_list.count('two'))      # Output is 1

All String methods

json tuple Python- Tutorials

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