CODEWITHSUNDEEP
python
NotAPython
NotAPython

Reputation: 1

Opening a file on Python 3

I am trying to open a file on python using this code:

fileName=input('Please enter the file name: ')
file=open(fileName,'r')

I get asked to enter the file name which is grid.txt, I type that in but nothing appears, am I doing something wrong, if so what am I doing wrong and what is the solution.

Thanks.

Upvotes: 0

Views: 434

Answers (5)

Dinesh Patel
Dinesh Patel

Reputation: 1

Add following print stmt to see detail about file

with open(fileName) as file:

print("Name of the file: ", file.name)

print("Closed or not : ", file.closed)

print("Opening mode : ", file.mode)

print("Softspace flag : ", file.softspace)

print("file read:", file.read())

Upvotes: 0

Steven Summers
Steven Summers

Reputation: 5384

You can also use with

fileName = input('Please enter the file name: ')
with open(fileName, 'r') as fd:
    for line in fd:
        print(line.strip())

This will close the file when it's done as well

Upvotes: 1

deepbrook
deepbrook

Reputation: 2656

file.open() doesn't open a file in a text editor (which is what I'm assuming you thought it does). Instead, it prepares the data for access via python.

As stated in the comment below your Question already: you have to do something with the file.

Try:

with open(fileName) as f:
    print(f.read())

Read up on the documentation for open() here. Also, using the with open() statement will improve your codes readability, as well as handling the closing of the file for you. .

Upvotes: 0

tombam95
tombam95

Reputation: 343

You have successfully created the file object, however you have only stated that it exists.

All you need is to print it afterwards, here's an example below :

f = open('workfile', 'r')
print f.read()

Alternatively f.readline() will read the next line each time it is called, and by convention f.close() should be called to close the file after you are done reading/writing to it.

Upvotes: 1

Rob Murray
Rob Murray

Reputation: 1913

Here's some code doing what you are looking for:

fileName=input('Please enter the file name: ')
f=open(fileName,'r')
print(f.read())
f.close()

Upvotes: 1

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