Python, like most programming languages, has ways to find and replace text.

In general, regular expressions should be used, but sometimes all that is needed is a simple find or replace.

A common analogy of finding text is that if finding a needle in a haystack.

If text is not find using find, the result is -1 (negative one).

Note that find is a method of the string class (to which a string object belongs). Here is the Python code [#1]
haystack1 = "Hello, World" needle1 = "World" pos1 = haystack1.find(needle1) print("The text \"{0:s}\" is at position {1:d} in string \"{2:s}\".".format(needle1,pos1,haystack1)) print("") for i1,ch1 in enumerate(haystack1): x1 = ord(ch1) print("\t{0:d}. #{1:d} is \"{2:s}\"".format(i1,x1,ch1))
Here is the output of the Python code.
The text "World" is at position 7 in string "Hello, World". 0. #72 is "H" 1. #101 is "e" 2. #108 is "l" 3. #108 is "l" 4. #111 is "o" 5. #44 is "," 6. #32 is " " 7. #87 is "W" 8. #111 is "o" 9. #114 is "r" 10. #108 is "l" 11. #100 is "d"

Whenever programs write programs, it is often necessary to escape backward slashes to double backward slashes.

Note that replace is a method of the string class (to which a string object belongs). Here is the Python code [#2]
fs1 = "D:\\FOLDER\\file.txt" fs2 = fs1.replace("\\","\\\\") print("") print("File: \"{0:s}\"".format(fs1)) print("File: \"{0:s}\" (escaped)".format(fs2))
Here is the output of the Python code.
File: "D:\FOLDER\file.txt" File: "D:\\FOLDER\\file.txt" (escaped)