Hàm read đọc toàn file. Dùng readlines đọc từng dòng.
Ví dụ
Đọc file line by line:
f = open('my_file.txt', 'r+')
for line in f.readlines():
print(line)
f.close()
Cũng dùng with...open mở file đọc từng dòng.
Ví dụ
with open('my_file.txt', 'r+') as f:
for line in f.readlines():
print(line)
https://www.codespeedy.com/read-a-specific-line-from-a-text-file-in-python/