删除 python 中多行字符串中的行之间的“\n”

Question

I want to remove "\n" from the intext in python. I tried many ways but all didn't work. The text suppose to be something like this:

string='''# Initializing Function named main()
def main () :
    str1 = None
    str2 = None
    age=16
    str1=str(input())
    str2=str(input())
    print("Entered Name: {}\n".format(str1))
    print("Entered Website:{}".format(str2))
# Calling the main Function
main()'''

In line "print("Entered Name: {}\n".format(str1))" there is \n which I need to remove without removing other \n from muliline string. Thanks!

Answer 1

The problem is that the \n is interpreted by the ''' string, but you want it to be left in place and processed by the inner " string.

The simplest solution is to use an r-string for the outer one; note the r''' on the first line:

string=r'''# Initializing Function named main()
def main () :
    str1 = None
    str2 = None
    age=16
    str1=str(input())
    str2=str(input())
    print("Entered Name: {}\n".format(str1))
    print("Entered Website:{}".format(str2))
# Calling the main Function
main()'''

With that change, the inner \n should work correctly and you'll probably no longer need to remove it.

Answer 2

Declare the multiline string as a raw string so the \n isn't escaped, then replace it (using another raw string so it is not escaped yet again):

# r before the ''' makes it a raw string
string=r'''# Initializing Function named main()
def main () :
    str1 = None
    str2 = None
    age=16
    str1=str(input())
    str2=str(input())
    print("Entered Name: {}\n".format(str1))
    print("Entered Website:{}".format(str2))
# Calling the main Function
main()'''
string = string.replace(r'\n', '')

Answer 3

i = string.find('{}\\n') #is the position of the '{}\n'
string = string[:i+2] + string[i+5 :] #should do the trick