how to find the first occurrence of a character in a string in python code example

Example 1: python search first occurrence in string

s = "the dude is a cool dude"
s.find('dude') # returns 4 - the first index of the first match in the string

Example 2: find first occurrence of character in string

// applies to C#
string S = "Any String At All"
int Sindex = S.indexOf("A") // accepts string or char arguments. 

// "Sindex" would be equal to "0", as the indexOf(); meathod returns
// the index position of the first occurance of the specified argument.

Example 3: find first instance of character in string python

mystring.findfirstindex('dude') # should return 4