python 如果包含字则打印行

Question

So im trying to let python search through my DataBase and then return the sentance where x is in This is my code so far

word = input("")
x = open("Database.txt")
for line in x:
    if (word) in line:
        print(line)
    else:
        print("This start could not be found, maybe a typo, or try a different start!")

The error that i am getting when i type in a word that is in the DataBase.txt then it gives this

Traceback (most recent call last):
  File "DataSearcher_DataBase2.py", line 1, in <module>
    word = input("")
  File "<string>", line 1, in <module>
NameError: name 'BrokenRunes' is not defined

And when i type in a word that is not in the DataBase.txt then it gives me this what i told it to do with the else: code but then for every line that its not detected in so i would like that to only happen once

Answer 1

You want display the "not found" message only one time, so you need print it out of the for

There are a few minor corrections too

word = input("")
found = False
x = open("Database.txt")
for line in x.readlines():
    if word in line:
        print(line)
        found = True

if not found:
    print("This start could not be found, maybe a typo, or try a different start!")