How to read n number of files in n variables and then add those variables in a list?

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This is my code:

file_input1 = open('', 'r')
f1 =

file_input2 = open('', 'r')
f2 =

documents = [f1, f2]
import nltk, string, numpy

stemmer = nltk.stem.porter.PorterStemmer()

lemmer = nltk.stem.WordNetLemmatizer()
def LemTokens(tokens):
    return [lemmer.lemmatize(token) for token in tokens]
remove_punct_dict = dict((ord(punct), None) for punct in string.punctuation)
def LemNormalize(text):

from sklearn.feature_extraction.text import CountVectorizer
LemVectorizer = CountVectorizer(tokenizer=LemNormalize, 

Instead of reading 2 files i want to read all the files in a directory. And read them individually so that later I can add those variables in a list named documents.

You can use the code mentioned below,

  import os

    def read_files(file):
        file_input1 = open(file, 'r')
        f1 =
        return f1

    files = ['', '']
    data = list()
    for file in files:

The above code will used to read the files mentioned in the list

import os

def read_files(file):
    file_input1 = open(file, 'r')
    f1 =
    return f1

data = list()
for file in os.listdir(src):


And the above code will read all the files from the directory mentioned

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You could collect all the in a list, for example: lst = []

 for file in os.listdir():
     file_input = open(file,"r")

One extra recommendation - in general it might be wise to store the contents of a file as a collection of its lines by for example using file_input.readlines() which returns a list of lines.

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Create a list of all filenames and then iterate over filename list and add their content in a dictionary.

from collections import defaultdict    #imported default dictionary

result = defaultdict()    #created empty default dictionary
filenames = ['', '', '']   #added filenames to a list

for name in filenames:   #iterate over filename list
    with open(name, 'r') as stream:   #open each file
        data = stream.readlines()     #read contents lines by line (readlines return list of lines)
        result[name] = data    # set name as key and content as value in dictionary


In this way you will have a dictionary with keys as filenames and values as their contents

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If the directory may include other directories with files, which you want to read to - use os.walk

Here is sample code from the official documentation:

import os
from os.path import join, getsize
for root, dirs, files in os.walk('python/Lib/email'):
    print root, "consumes",
    print sum(getsize(join(root, name)) for name in files),
    print "bytes in", len(files), "non-directory files"
    if 'CVS' in dirs:
        dirs.remove('CVS')  # don't visit CVS directories

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Lists - Learn Python 3, n = int(input()) # read number of element in the list then the number of elements is read, then you read the list items line by line and append to the end. The maximum number of lines contained in the history file. When this variable is assigned a value, the history file is truncated, if necessary, to contain no more than that number of lines. The history file is also truncated to this size after writing it when an interactive shell exits. The default value is 500.

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  • Iterate file list and store file objects in dictionary, you can store objects in list as dict.values() after that
  • Try using with open('filename', 'r') as f: #todo is more pythonic. Then you don't need to .close() it.
  • It doesn't let open any file. Error is "No such file or directory"