Python inside for loop readlines single output

Question

I have following script properly identifies ASCII and non-ASCII lines, but I want a report for each file, not per line. Since I have the print inside the loop, and I have many files, I get far too much output. How can I modify this code to get a single output per file? It should tell me whether there was any non-ASCII text in the file.

import os

for file in os.listdir('.'):
    if file.endswith('.txt'):

        with open(file) as f:
            content = f.readlines()

            for entry in content:
                try:
                    entry.encode('ascii')
                except UnicodeEncodeError:
                    print("it was not a ascii-encoded unicode string")
                    print(file)
                else:
                    print("It may have been an ascii-encoded unicode string")
                    print(file)

Answer 1

For instance, if you want to show whether there was any non-ASCII string in the file, you maintain a flag to tell you whether you've found a bad line. However, you wait until the end of the file to report.

import os

for file in os.listdir('.'):
    if file.endswith('.txt'):

        with open(file) as f:
            content = f.readlines()
            good_file = True

            for entry in content:
                try:
                    entry.encode('ascii')
                except UnicodeEncodeError:
                    good_file = False

        if good_file:
            print("It may have been an ASCII-encoded unicode string")
        else:
            print("it was not an ASCII-encoded unicode string")

        print(file)