Reading list in from a text file

Question

I currently have a text file containing data like so

I'm struggling to read the file in as a list [0,0,0,1,0,5...] or as a numpy array. These txt files are around 400 lines of data. using the f.readlines() function is currently giving me a list that looks like ['0/n','0/n','0/n','1/n','0/n','5/n'...]. if anyone knows a good way of doing this it would be much appreciated.

Does this answer your question? [How to read a file without newlines?](https://stackoverflow.com/questions/12330522/how-to-read-a-file-without-newlines) — Lior Cohen, Feb 08 '20 at 13:17

score 0 · Answer 1 · answered Feb 08 '20 at 13:19

get the line content with f.readline() but while inserting the content into your list, exclude the last character as that is a new line character. Assuming you are working with python do something like this

x[i] = f.readline()[:-1]

where x is the name of your list.

score 0 · Answer 2 · answered Feb 08 '20 at 13:21

You can either run a replace to remove the escape characters:

np.core.defchararray.replace(arr,'\n', '    ')

where arr is the array from which you want to remove the escape characters. Check also here

Or you can have a quick look here

You may also use:

for line in lines:
    print(line.rstrip())

score 0 · Answer 3 · answered Feb 08 '20 at 13:25

If you are getting an array with newline characters, you can replace them as follows:

> a = ['0/n','0/n','0/n','1/n','0/n','5/n'] r = map(lambda x:
> x.replace('/n', ''), a) print(list(r))

This prints

[0,0,0,1,0,5]

But I don't find the approach elegant. Has to be a better way.

score 0 · Answer 4 · answered Feb 08 '20 at 13:27

0

You can cast from string to int with astype

num_list = np.array(list_with_endlines).astype(np.int64))

answered Feb 08 '20 at 13:27

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Reading list in from a text file

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