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Katz
Asked: 2020-07-26 09:41:10 +0800 CST 2020-07-26 09:41:10 +0800 CST

How to read a text file from a list or array with Python

  • 772

I want to read an array from a file, and add each word in the array to the user input. Imagine that the user input is wwww.google.com/the application adds each word in the array behind the link until the list is finished.

google.com/
google.com/test.html
google.com/test1.html

I can do this if I make an array in the program and it works fine but when I want to read from a file, instead of reading the whole word it only reads letter by letter.

google.com/
google.com/t
google.com/e
google.com/s
google.com/t

and continue like this. How can I make it read the whole word when it reads the file instead of letter by letter.
Here is my code if you need it to reference an example of the array:

['test/','test1/','test2/']

website = raw_input(Fore.MAGENTA +"> SITIO PARA SCANEAR: ")
if "http://" not in website:
    website ="http://"+ website

with open("test.txt", "r") as ins:
    array=[]
    for line in ins:
        print line 

for i in line:
    try:
        adminpanel = urllib2.urlopen(website+i)
        checkurl = adminpanel.code
        if checkurl == 200:
            print Fore.GREEN+ website+i," ""              [+] Encontrado [+]"
            continue
        else:
            print Fore.RED+ website+i," ""              [-]Error[-]"
python

2 Answers

  1. Best Answer

    From your comments I understand that you need to iterate over the list that is as text in your file. You can make use of eval():

    with open("test.txt", "r") as ins:
    cont = ins.read()  # Esto devuelve el contenido completo, no linea por linea
    arr = eval(cont)
    array=arr
    for elemento in array:
        print elemento
    • 1

  2. evalis a source of insecurity and it is recommended not to use it except if you are the one in control of the whole process and you know that test.txt is safe...

    If you don't want to use it eval, you have several options:

    • You can save the urls in a more standard way so that you can read the file more 'correctly'.

    • You can use the function ast.literal_evalinside the module ast.

    • You can use the following function to parse the text present in test.txt and convert it to a list.

    Function to use:

    def parsea_lista(tmp):
    tmp = tmp.replace("[","").replace("]","").replace("'","").split(",")
    return tmp

    That function works for the example you have put, ['test/','test1/','test2/']but it can give errors if that example changes. What the function does is remove the brackets and quotes and convert the final result to a list of strings separating everything between commas.

    If you want to integrate it into the code that @Gocht has left you, you can do it like this:

    with open("test.txt", "r") as ins:
    cont = ins.read()  # Esto devuelve el contenido completo, no linea por linea
    array = parsea_lista(cont)
    for elemento in array:
        print elemento

    In my opinion, the best option would be the first one but it forces you to modify the code that test.txt generates .

    • 1