how to replace all in python code example

Example 1: python replace "\" for "/"

my_string = r'\\ServerA\DriveB\5.FolderC\A.TXT'
my_string = my_string.replace('\\', '/')

Example 2: replace() python

#our text
text='Hello there how may I help you!'
     #replacing ("THIS" with "THIS") 
replaced_text=text.replace("!", "?")
print(replaced_text)
#output
"Hello there how may I help you?"