Writing prefix count into a txt file using python-CodePudding

I have to write a list of prefixes with their occurrence count into a new text file, as long as the prefixes occur more than 1000 times.

I came up with this code, but somehow it does not work.

 output = prefix_list(file_name)
    file = "testfile.txt"

    for values in output:
            if (values[1] >= 1000):

                file.write(values[0]   " "   int(values[1])   "\n")

Can somebody help me with what I am doing wrong here?

CodePudding user response：

The problem with your code is that you seem to don't know how to read a file.

If you want to read a file with Python, you have to use the open built-in function, this way:

with open('file.txt', 'r ') as file: #'r ' stands for read 
    text = file.read()

Then I would count this way the 'prefixes':

for i in text:
    if (text.count(i) >= 1000):
        # Do something