如何将文本从文件复制到 Python 中的列表？

Question

I have a couple of files inside a folder that I am trying to pull out text from, reason being that I eventually want to add this text into a newly created separate file. My tactic is to initialize a list and populate it with the text from each file, one by one. I have called this list myLines .

myLines = []

 for line in f:
        myLines.append(line)
    for element in myLines:
        f.write(myLines)

I get an error, and I know that it has something to do with .write() not accepting myLines because its a list rather than an argument. How would I go about turning the content of mylines into an acceptable argument for the write() method?

Thanks

Answer 1

IDK what's your intention of using myLines as the variable name. Given what you described it should be a list of texts, not a list of lines.

my_texts = []

# populate my_texts
for filename in input_files:
    with open(filename) as f:
        my_texts.append(f.read())

# write new file
with open('new_file_path.txt', 'w') as f:
    f.write('\n'.join(my_texts))

assuming you want a new line separating texts from each file.

A more straightforward method would be to 1) open the output file in append mode ( open('out_file_path', 'a') ), and 2) read each input file in a loop, writing the content to the output file.

Answer 2

Try this -

    myLines = []

     for line in f:
            myLines.append(line)
        for element in myLines:
            f.write(str(myLines))

Just convert myLines to string. You can use classes also if you want to preserve the type- list, but, that will be a bit lengthy.